turndown ratio in dosing pump The MD series is oil lubricated which is contained in the anodized aluminum gear housing. Degassing valve design - no priming or gas lock issues. Output Range: . High precision & controllability. • 3-function valve supplied as standard. 230 VAC/50-60 HZ/1 ph . Stroke Length Turn-Down Ratio: 10:1 . Stepper Motor Dosing Pump. Metering performance is reproducible to within ± 3% Metering Pumps 2 YEAR WARRANTY * Select sizes and liquid end options. 8** 3. The Encore® EM/ED/EK/EP model is available in seven capacity ranges, up to 3. G Series (GB and GM) metering pumps feature a rugged construction specifically engineered to handle higher output applications in harsh environments. Turndown ratio 1:800 With a turndown ratio ten times better than that of traditional equipment, the DME Digital Dosing pumps offer maximum flexibility and accuracy. 8** 5. The operation mode is easily identified by means of icons. is a leading global manufacturer engaged in developing and supplying chemical pumps and flow control devices. Adjustable pumps feature a unique feed rate control module for precise measurement with a turndown ratio of 20:1. Precise Repeatable accuracy of +/- 1% over a 10:1 turndown ratio is maintained with the stroke adjustment control located conveniently on the top of the chemical metering pump. Time-tested electronics for reliable, repeatable performance. 5%, control Variant: Standard. . Compatible with Blue-White’s output flow verification sensor system. Turndown ratio 1:800 With a turndown ratio ten times better than that of traditional equipment, DME Digital Dosing pumps offer maximum flexibility and accuracy. Turndown ratios are important. 10-to-1 turndown ratio (the lowest measurement is one tenth of the full-scale reading); measurement ranges are available in U S customary and metric scales swagelok. This is a typical turndown ratio for a orifice plate. Designed specifically for commercial and industrial applications, the EXCEL® AD chemical metering pump gives you improved electro-magnetics to meet your specific flow and pressure requirements, up to 250 psi (17. Output Pressure ratings to 125 psi/8. 001 gph and 20 gpm; Total head (pressure) ranges between 10 and 30,000 psi BEST small metering pump in the business, other manufacturers may try to confuse you by using the name CHEM-FEED®. 7 – GMXa 1009: 10: 6. NEMA 4X / IP65 enclosures for protection against corrosive environments. Capacity from 2. variable speed control of the electric motor) a turndown ratio of around 100:1 can be achieved. Please refer to the reverse side for Series E PLUS specifications. The DDE is the cost-effective entry-level model with a maximum turn-down ratio of 1:1000 and smooth, continuous dosing. With a turndown ratio that is 10 times better than that of conventional dosing pumps, DME also provides flexibility and optimal priming and displacement of liquids. Itmeans PRISMA can split up the dosing process intoa maximum of 4800 steps in order to offer the mosthomogeneous and precise distribution of the productto dose according to the required application. multifunction stepper motor-driven dosing pump turndown ratio 1:4800* slow suction modes (x4) for viscous media color status display alarm indication on display liquid ends available in different sizes and materials double ball check valve capacity range 5 – 80 l/h, up to 20 bar Nineteen distinct models are available, having pressure capabilities to 300 psi (21 bar) @ 3 gpd (0. • 100:1 turn down ratio; 1000:1 on some models • Water resistant for outdoor installation • Manual control by on-line adjustable stroke length and stroke rate • Optional external pacing with Auto/Manual switch on A Plus • Internally dampened to reduce noise • Optional: External pace, external stop or both A PLUS, C PLUS, E SERIES Stroke Frequency Turn-Down Ratio: 10:1 . 25 to 1800 l/h with 10:1 turndown ratio; Mechanically actuated diaphragm; Supplied with 3 phase, 415V TEFC motor (GM0025 = 0. 6 GPH (75 to 150 ml/h). The dosing rate is set using a logarithmic scale that runs from 0. The speed of The DDE is a cost-effective entry-level model with all the benefits of Digital Dosing™ such as a maximum turn-down ratio of 1000:1 (max flow 4 gph or 15 l/h) and 800:1 (max flow 52. All E-Class pumps feature a very high compression ratio that ensures Adjustable stroke frequency and the flexibility of up to 1000:1 turndown ratio Manually adjustable stroke length provides accurate pump output adjustment NEMA 4X/IP65 enclosures for protection against corrosive environments Time-tested electronics for reliable, repeatable performance electronic metering pumps and accessories. 6 Amps @ 230 VAC; Amps: 0. 00015ml/min-500ml/min. e. The latest dosing pumps are incorporated with microprocessors that are capable of matching the user set capacity against real-time signals and conform to the injection rate. With the added versatility of putting different tube sizes into one Hi-Techno Pump High Turndown Ratio: Motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1. Single diaphragm models are available. 8** 3. This one model can replace a The pumps are self-priming, are available in capacities to 300 gal per hour and can be provided with automatic frequency control. The EZ Series features an advanced microprocessor control with a turndown ratio of 360:1, making it an exceptional value. Metering pumps operate smoothly and quietly Prisma stepper motor-driven pumps give you the most accurate control over the stroke speed, providing an outstanding turndown ratio of up to 4800:1. A ‘three out of four’ duty selection scheme is provided; the fourth pump is on standby and starts automatically upon failure of one of the duty pumps when automatic control Its 100% enclosed, chemically-resistance housing makes this pump ideal for the harshest chemical dosing; The Series C offers a wide selection of options and features, making it easy to tailor this pump to your specific application needs. The delta® is a solenoid driven, diaphragm metering pump. Pressure - Pumps 100 psi; Voltage - Pumps 115V AC; Max. Benefits: • Simple but robust design for reliability • All moving parts are submerged in oil Metering Pumps High Turndown Ratio Motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 (300 l/h to 200 ml/h). A variable speed drive will enable the pump to inject a dose of the same size on each stroke, but since the stroke speeds will change, the doses themselves will be less frequent. 6 – GMXa 0708: 7: 5. This allows a very high 'turndown' i. Performance range: 0. 3-60 second adjustable on time per 60 second cycle. We’re talking a steady state accuracy of +/-0. 5 lph), and flow capacities to 600 GPD (94. All Walchem E-Series pumps feature dual bearing support. 73 l/h). 1,000 Centipoise Maximum Suction Lift . Metering pumps that use a variable speed drive will deliver a turndown ratio that is determined by dividing the The Uni-Dose Series U electronic metering pump designed specifically for the water conditioning industry! Veratile & flexible with single or dual output controls. 0 gph at 363 psi (8 l/h at 25 bar) to 20 gph at 29 psi (75 l/h at 2 bar). 5-16 installation and operating instructions manual online. Built-in Tube Failure Detection system (TFD). 83 gph (6. PRISMA stepper motor-driven pump gives you the most accurate dosing, providing an outstanding 1:4800 turndown ratio offering the most homogeneous and precise distribution of the chemical dosed according to the required application. A high quality perista pump is capable of over 2000:1 flow range (max flow to min flow) by simply controlling one parameter: the rotor speed. Dosing pumps are usually made from plastic, thermo plastic, and feature mounting holes or accessories. The utility sees a huge variation in stream flow and turbidity throughout the year, and their need for treatment chemicals varies widely. com Most metering pumps have a turndown ratio of 10:1, which simply means that the pump is within its accuracy rating anywhere between 10% and 100% of capacity. Simple but robust design for reliability; All moving parts are submerged in oil Repetitive accuracy of +/- 1% over a 10:1 turndown ratio is achieved with the stroke adjustment knob located conveniently on the top of the pump. 7 lph), with a turndown ratio of 10:1. The dosing rate is set using a logarithmic scale that runs from 0. . 2 and NSF Standard 50. 18 has four 415 V three-phase 50 Hz dosing pumps, each capable of delivering one-third of the maximum dosing rate. 6: 0. Turndown Ratio: 1:800. The “turndown ratio” or “flow range” of a peristaltic pump is unparalleled. Microprocessor control allows the Flex-Pro A4 to have a 2500:1 turn down ratio making it one of the most flexible metering pumps available. 8 gph or 200 l/h) and smooth, continuous dosing. Maximum throughput is about 3200 kg/hr; No alteration in air register arrangement for all outputs, this is a consequence of the low turndown ratio of this type of burner. 150-1UA. High-Volume Peristaltic Metering Pump. When engineering specifications are written for a new application the range of fluid to be dispensed is usually listed. The variation by a factor of 10 in both Stroke Length and Stroke Rate gives rise to a Turn Down Ratio of 10 x 10 = 100. Some newer designs of metering pumps feature higher accuracy, and a greater turndown ratio of 100:1. 1-100%. Wide flow range from 7. 50 . 1:1000 turndown for smooth, continuous dosing and minimized pulsation. 5 Amps . Turndown ratio 1:800 With a turndown ratio ten times better than that of traditional equipment, the DME Digital Dosing pumps offer maximum flexibility and accuracy. The simplicity and efficiency of this design results in a pump that consumes very little power, enabling the pump to be totally enclosed in a chemically resistant housing for installation in the harshest environments. Centrac is an example of a new generation metering pump that features higher accuracy and a greater turndown ratio of 100:1. ±1% High Accuracy Combined with precise motor control, an efficient valve design maintains accurate flow rates to allow a low-cost, mechanically-driven diaphragm pump to achieve a repeatability of ±1%. 8 to 7. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. 1% and 100% of its rated capacity. Adjustable stroke frequency and the flexibility of up to 1000:1 turndown ratio Series B Chemical Metering Pumps -Year after year of reliable performance. IX Series pumps use efficient Brushless DC motors for speed control. Outputs to 171 GPH/648 LPH. Brushless DC motor - high power output/ smaller footprint. . Our wide breadth of products extends from basic metering pumps to highly sophisticated custom designs for specific customer applications. Pumps can mounted vertically or horizontally without any effect on priming. Turndown of the suction stroke to 75 %, 50 % or 25 % of the The tender for the extension of the Nooitgedacht Water Treatment Works was based on conventional cam-operated dosing pumps with manual adjustment. 6 lph) @ 30 PSIG (2 BAR), with a turndown ratio of 100:1. Turndown of the suction High-resolution motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio up to 750:1 in this dosing pump Precise chemical dosing Combined with precise motor control, an efficient valve design maintains accurate flow rates to allow a low-cost, mechanically-driven metering pump to achieve a repeatability of ±1% Dosing pumps – IX Series, Model C & D A new generation of advanced metering pump technology! High Turndown Ratio – Motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 High Accuracy – Combined with precise motor control, an efficient valve design maintains accurate flow rates […] stroke length, which will deliver a full 10-to-1 turndown ratio. 00: 200: 8 x 5: 1. Manually adjustable stroke length provides accurate pump output adjustment. We stock a wide range of peristaltic pumps in our warehouse in Brisbane. Brochure. The model’s straightforward pulse control, external stop function, and empty level signal make it ideal for basic OEM applications. High turn down ratio Full motor control varies the discharge and suction speeds independently to provide a full turndown ratio of 750:1. Note 1: Standard turndown ratio of the LK is 10:1. PRISMA stepper motor-driven pump gives you the most accurate dosing, providing an outstanding 1:4800 turndown ratio offering the most homogeneous and precise distribution of the chemical dosed according to the required application. Pressure capabilities to 250 psi (17 bar) @ 5 gpd (0. In addition, these pumps offer a 100:1 turndown ratio. 96 gph. 1000:1 Turndown Ratio. Diverse control options via volt-freee contacts and 0/4-20mA standard signal. The DME is the original Digital Dosing™ pump that represents a major step forward in metering pump technology. However, other types of positive displacement pumps such as piston pumps, peristaltic pumps, plunger pumps, or several other rotary pump types may also serve as metering pumps. But a turndown ratio means little without an accuracy rating as well. Our best value in a pump with this capacity and powered by 12 Volt DC. real ratios, as well as ProMinent’s theoretical pump turndown ratios check out our webinar . 8 gph or 200 l/h) and smooth, continuous dosing. The benefit is clear in that 90% of the pump’s maximum capacity is within its usable range. This allows us to create a complete pump series with just one motor, one gearing system, and two pump head sizes. Therefore a pump rated at 5 litres/hour will obviously be suitable to dose 5 litres/hour, but – The DDA model is the pump for complex and demanding applications where the focus is on maximum process reliability. KEY BENEFITS. Turndown is expressed as a ratio of the metering pump output. They determine the low-end capability of a dosing pump while maintaining pump accuracy. 14 day process timer (optional). MAXROY® Series Metering Pumps a turn down ratio of 100:1. Most metering pumps have a turndown ratio of 10:1, which simply means that the pump is within its accuracy rating anywhere between 10% and 100% of capacity. Adjustment and display of the feed rate from the keypad with choice of display in l/hr or strokes/min. The compression ratio is raised when you reduce the dead volume of the pump head during operation. 2 to 200. 01 – 158 GPH (. TURNDOWN FUNCTION Prisma stepper motor-driven pumps give you the most accurate control over the stroke speed, providing an outstanding turndown ratio of up to 4800:1. solution for a variety of dosing applications. Intelligent dosing pumps. control and a turndown ratio of 360:1 make this series an exceptional value. Metering performance is reproducible to within +/- 3% of maximum capacity. One intelligent dosing pump that does it all. Reduce the number of dosing pumps required for all your applications by changing to the emec PRISMA Stepper Motor Dosing Pump. Metering pumps that use a variable speed drive will deliver a turndown ratio that is determined by dividing the pump’s stroke speed by its minimum operating speed. Twenty distinct models are available, having pressure capabilities to 250 PSIG (17 BAR) @ 5 GPD (0. The compression ratio is raised when you reduce the dead volume of the pump head during operation. Our best value in a pump $647. 5 mL/H). 2: 1. 1 lph), with a turndown ratio of 100:1. What is Turndown? Turndown is the ratio of a metering pump’s output. The pump is always operating at full stroke length, irrespective of the capacity set, for optimum accuracy, priming and suction. 7 ounces per hour, with pressures to 80 psi (1. It has been agency approved for demanding outdoor and indoor applications. Water - 5:1; Polymer: 2:1 ( on stroke length) 10:1 (on speed) 20:1 total; Power Requirements - 1 phase, 115 volt, 60 Hz or 1 phase, 220 volt, 50Hz. During your pump system design, all of these factors should be considered before making the investment into either electrically driven or air-powered pumps. Inputs include: 4-20mA, 0-10Vdc, and Pulse inputs for remote external speed control and 0-30 VDC / contact closure remote start/stop all via an operator friendly digital touch pad with menu Turndown ratio is the ratio of the burner throughput maximum to minimum. Metric Fasteners. By using Digital dosing pumps which have a user interface that lets you enter the dosing rate you want directly on the screen, the systems are very simple to use. • Time tested electronics for reliable, repeatable performance. This enables oversize pumps to be installed in applications where output requirements fluctuate, or to accommodate future system growth. 89 bars) are achievable. Flow (gpd) - Pumps 3. The pumps are just as easy to operate as the popular ProMinent® Gamma/ L and Sigma series. 00 The LD series is adjustable with a potentiometer to control outputs with a 50:1 turndown. The pumps are simple to operate with only three pushbutton keys and the unmatched turndown ratio provides both versatility and high resolution chemical feed which eliminates slug-feeding effects. The benefits of the FLEX-PRO® A4 high-volume peristaltic pump include: Does not have valves that can clog. 45: 200: 12 x 9: 1. High Accuracy Combined with precise motor control, an efficient valve design maintains accurate flow rates to allow a low-cost, mechanically-driven diaphragm pump to achieve a high accuracy of ±1%. The Hybrid MD-3 diaphragm metering pump has an excellent turndown ratio of 2,000:1, and smooth chemical dosing with no pulsation dampener required. They also provide a 100:1 turndown ratio, ideal for wider ranges of flow rates in water treatment applications. mx Reduzierverhältn is von 10 :1 (der niedrigste Messwert ist ein Zehntel des gesamten Skalenwerts); Messbereiche sind in gängigen metrischen und amerikanischen Skalierungen ProSeries-M MD-3 multidiaphragm metering pump delivers precise chemical feed to water and wastewater treatment applications. Weekly schedules can be programmed in either 1 or 2-week cycles with a daily on-time. 00 Twenty distinct models are available, having pressure capabilities to 300 PSIG (21 BAR) @ 3 GPD (0. On demand dilution allows a higher volume/lower strength chemical to be fed. Twenty distinct models are available, having pressure capabilities to 300 PSIG (21 BAR) @ 3 GPD (0. (7. 6 gal/h (21. . 04 – 600 LPH) Pressures to 125 PSI (8. 6 l/h). Metering performance is reproducible to within ± 2% of maximum capacity. The pump always operates at full stroke length, irrespective of the capacity set; this ensures maximum volume displacement per stroke, optimum accuracy, easy priming and improved suction. NEMA 4X / IP66 New Iwaki IX-B diaphragm metering pump. Some of these new designs will accurately dose anywhere between 1 percent and 100 percent of capacity. • Auto-deaeration during pump standby • Flexible Fieldbus control • Turn-down ratio 3000:1 with constant 100% stroke length DDC MODELS • Optimal price-performance ratio • Flow and pressure up to 4 gph and up to 145 psi • Two SlowMode functions (25% and 50%), calibration mode, service display Adjustable stroke frequency and the flexibility of up to 1000:1 turndown ratio, Manually adjustable stroke length provides accurate pump output adjustment, NEMA 4X / IP65 enclosures for protection against corrosive environments, Time tested electronics for reliable, repeatable performance, Totally encapsulated electronics for protection against moisture and corrosive conditions, Inputs for low level switch available on certain models, Models with external pacing for flow proportional High resolution motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 1000:1 and flowrates from 300 L/H down to 7. Full Stroke Length at All Times Grundfos is the only pump manufacturer to use a full stroke length every time. Therefore a pump rated at 5 litres/hour will obviously be suitable to dose 5 litres/hour, but – Although a metering pump can generally be adjusted to pump at any flow rate between 0 and its maximum capacity, its accuracy is measured over a range determined by the pump's turndown ratio. 0: 1. Process Temperature from -20°C to 120°C. Industry Best Turndown Hybrid Diaphragm Metering Pump with 2000:1 turndown ratio Long Life at High Pressures Durable, rugged wetted components. The integrated high-performance microelectronics and the innovative speed-regulated drive technology produce precise and continuous dosing guaranteeing consistent media mixing and process quality. 6 bar) 4-20mA (A4V only), Pulse Input (A4V only) and Manual Speed Control; 2500:1 Turndown ratio; Variable Speed BLDC Motor; NEMA 4X (IP 66) Washdown; 2 Year Warranty Digital Dosing Pumps GRUNDFOS DME Key Features and Benefits • Wide dosing range with a turndown ratio of 800:1 for a range of water supply, wastewater and water treatment applications • Easy to install, the operator can set the pump to discharge exactly the quantity of dosing liquid required in the application Advanced microprocessor control and a turndown ratio of 360:1 make this series an exceptional value. FLEX-PRO® A4 Series Peristaltic Pump for commercial and industrial applications. 04 to 50. A micrometer dial can adjust the pump’s capacity up to a 10:1 turndown ratio while it is running. Mechanical Motor-Driven Pump Furthermore, the pumps do not require continuous maintenance and do not include any check valves that could potentially clog. gamma/ X metering pumps with self-bleeding dosing head without bypass: GMXa 1602: 10: 1. 0 Amps @ 230 V AC; Amps: 0. Injection / Dosing, Metering: Features & Benefits; Grundfos DDA, DDC & DDE Dosing Feaures & Benefits SMART Digital dosing pumps are the next generation of variable speed micro-processor controlled metering pumps. Grundfos chemical dosing pump technology is required for a huge variety of water purification applications (see below). This type of pump has a turndown ration of only 10:1. 50: 200: 8 x 5: 1. 5 to 1 the minimum throughput will be 1000 kg/hr. High Accuracy G Series LMI pumps. The optoDrive® allows the suction & discharge stroke duration to be adjusted. – If the same pump provides 100 to1 turndown, the range is extended to 99% of its usable range: 100 GPH to 1 GPH. Flow rates:0. The advanced design enables the pumps to respond instantly to changes in dosage rate, making it the ideal metering pump for a wide range of flow rates in water and wastewater treatment applications. • NEMA 4X / IP65 enclosures for protection against corrosive environments. • Totally encapsulated electronics for protection against moisture and corrosive conditions. Grundfos chemical dosing pump technology is required for a huge variety of water purification applications (see below). 6 – GMXa 1604: 10: 2. 6 Bar. Viscosity standard at 600 cps, higher options available. 0: 1. pump is a good value choice for simple and continuous dosing applications. New generation metering pumps have been introduced that feature higher accuracy, and a greater turndown ratio of 100:1. Advanced microprocessor control and a turndown ratio of 360:1 make this series an exceptional value. If say the maximum throughput is 2500 kg/hr, then with a turn down ratio of 2. It provides accurate dosing in Turndown ratio 1:4800 for maximum control of your dosing pump PRISMA step-by-step motor dosing pumps give you, the user, the most precise control over the dosing process by means of a 4800:1 distribution ratio (Turndown). This provides a turndown ratio of 36,000:1. - normally expressed as turndown ratio of 4:1. OptoDrive feature for continuous dosing offering 3600:1 turndown ratio. With its 1000:1 turn down ratio, removable mounting bracket and easy to use control knob, the DDE product range brings simplicity and a budget-friendly solution for chemical injection. The pumps are simple to operate with only three pushbutton keys and the unmatched turndown ratio provides both versatility and high resolution chemical feed which eliminates slug-feeding effects. So, suppose a flow meter has a full scale rating of 20 l/min the flow meter will measure down to 0. 6 Dosing pump controls. 48: 200: 8 x 5: 1. PRISMA stepper motor-driven pumps give you themost accurate control over the stroke speed, providingan outstanding turndown ratio of up to 4800:1. 1-100%. The solenoid driven pump can have a turn-down ratio of 10:1, 100:1 or in some microprocessor-based units provide 1,000:1 turn-down ratio, depending on the application, for extreme accuracy in output. The dosing rate is set using a logarithmic scale that runs from 0. water / 4. • ETL certified for indoor and outdoor use per UL standard 778, as well as CSA standard C22. Benefits. High Accuracy Combined with precise motor control, an efficient valve design maintains accurate flow rates to Walchem EHE Series metering pumps have outputs up to 20 GPH (75 l/h) and pressure capabilities to 150 PSI (10 bar). The DDE is a cost-effective entry-level model with all the benefits of Digital Dosing™ such as a maximum turn-down ratio of 1000:1 (max flow 4 gph or 15 l/h) and 800:1 (max flow 52. High Turndown Ratio Exact motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 (300 l/h to 200 ml/h). Hibbert was most excited about the high turndown ratio the digital pump offered. Injection / Dosing, Metering: Features & Benefits; Grundfos DDA, DDC & DDE Dosing Feaures & Benefits SMART Digital dosing pumps are the next generation of variable speed micro-processor controlled metering pumps. Walchem EZ Series Metering Pumps are simple to operate with only three push-button keys and the turndown ratio provides both versatility and high resolution chemical feed which eliminates slug-feeding effects. 8 lph), and flow capacities to 44 GPD (7 lph) @ 100 PSIG (7 BAR), with a turndown ratio of 100:1. Series B Chemical Metering Pumps -Year after year of reliable performance. The maximum capacity of a metering pump is determined by gear ratio, piston diameter, and motor RPM. In the display, the setting of the pump is read out directly in ml/h or l/h, pulse or batch, and the operation mode is easily identified by means of icons. Pumps can mounted vertically or horizontally without any effect on priming. The simple mechanically actuated diaphragm design eliminates pesky hydraulic systems and packing glands used in many metering pumps. • 1000:1 turndown ratio XRD/XRE series • Manual, enhanced or Profibus/Modbus communications control options • Flow rate capacity from 21. 1-100%. Disinfection pH regulation CIP Dosing of chemicals and biocides Turndown ratio of 1:800 The DDI has a turndown ratio ten times better than that of conventional equipment. Logarithmic scale on control knob that adjusts the feedrate from 0. Its 100% enclosed chemical resistant housing provides this unit with ultimate protection, making it ideal for corrosive chemical dosing. It is suitable for injecting a wide variety of chemicals that range from 0. With the addition of the DC motor option or VFD, the turndown ratio increases to 100:1 and the control capability expands to include a 4-20 mA input control signal. 75kW) Options: • Auto degassing pump arrangements available up to 1. 240 V and 50 Hz. Don’t Settle for Imitations – Insist on CHEM-FEED® Metering Pumps! CHEM-FEED® BENEFITS Superior, efficient pump head design. ±1% High Accuracy Grundfos DDE Dosing Pump DDE: a cost-effective Digital Dosing™ solution The DDE is a cost-effective entry-level model with all the benefits of Digital Dosing™ such as a maximum turn-down ratio of 1000:1 (max flow 4 gph or 15 l/h) and 800:1 (max flow 52. Up to 3000:1 Turndown Ratio The range is designed to give you superior flexibility and accuracy even when dosing very small volumes. Ten distinct models are available, having pressure capabilities to 250 psig (17 bar), and flow capacities to 58 gpd (9. EZ-Timer module for timed feed control. Number of Channels:8. 37kW, all others 0. This provides a turndown ratio of 36,000:1. LMI’s family of electronic metering pumps offer: • Adjustable stroke frequency and the flexibility of up to 1000:1 turndown ratio. 1 to 12 Bar • Up to 1000:1 turndown ratio with +/- 1% steady state accuracy • Comes with Stayprime (de-gassing) function as standard G series • 100:1 turndown ratio • SCADA Inputs include: 4=20mA and pulse inputs for remote external speed control and either powered 6-24 VDC or non-powered dry contact closure for remote start/stop. The advanced design enables the pumps to respond instantly to changes in dosage rate, making it the ideal metering pump for a wide range of flow rates in water and wastewater treatment applications. ±1% High Accuracy Item - Chemical Metering Pumps Chemical Metering Pump; Chemical Metering Pump Type Diaphragm; Max. The latest dosing pumps are incorporated with microprocessors that are capable of matching the user set capacity against real-time signals and conform to the injection rate. 5 bar). Capacity range 8-80 l/hr, 2 -25 bar. The operation mode is easily identified by means of icons. 002 ml; Mixing ratio: 1:1 to 100:1 6. If operated in conjunction with a VSD (i. 002 and 2. 07 gph to 9 gph (0. The compact size and simple control make it ideal for OEM applications, water treatment, car wash and other industrial applications. Hydra-Cell metering pumps can meet the same pressure and flow . 00 $421. Metering performance is reproducible to within ± 3% of maximum capacity The smart digital DDE dosing pump from Grundfos has a variable speed drive ( Stepper motor) and intelligent electronics with minimum energy consumption. High resolution motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio up to 1000:1 and flowrates from 80 GPH (300 L/H) down to 0. For more information on turndown ratio’s, including theoretical vs. Ten distinct models are available, having pressure capabilities to 250 psig (17 bar), and flow capacities to 58 gpd (9. Searching for 8:1 Chemical Metering Pumps? Grainger's got your back. Integrated injection control Turndown Ratio 800:1 Digital Dosing pumps can be adjusted to 1/800 of their maximum capacity. Turndown Ratio 200:1 Turndown Ratio: 6 rpm 1200 rpm 1800 rpm: 300:1 Turndown Ratio: H-25 D-35 F-20 Optional control features include external pace a choice between momentary on/off switch for priming the pump or a toggle on/off switch for manual override of all control functions. a turn down ratio of 100:1. Grundfos alldos dme 150 dosing pump Grundfos DME Digital Dosing pumps combine perfect precision with user-friendliness. e. High resolution motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 1000:1 and flowrates from 300 L/H down to 7. Combining the EHE performance with a turndown ratio of 1800:1 yields one of the most versatile pumps in the water treatment industry today. Dosing pumps are low-volume pumps with controllable discharge rates that are used to inject additives or difficult to mix fluids into mixing, pumping, or batch/tank systems. When you don’t have exceptional turndown accuracy, you will not be able to achieve the desired dosing results. With precise speed control in 0. 002 GPH (7. 19 L/h) and pressures up to 100 psi (6. 27 lph to 34 lph) and pressures up to 13,100 psig (903 barg). With a turndown ratio ten times better than that of traditional equipment, the DME Digital Dosing pumps offer maximum flexibility and accuracy. They have applications in industries for pulp and paper, textiles, food and beverages, drinking water treatment and industrial process water and wastewater treatment. This high capacity self priming pump out performs any peristaltic pump in it's class. In this video we will answer the following questions: - What is a turndown ratio?- What does turndown ratio mean to us?- What determines the turndown ratio f There is no master definition of turn down ratio: Controlled-volume metering pumps with stroke length adjustment typically have a flow rate adjustment range between 10 and 100 percent of rated flow, expressed as a turndown ratio of 10:1. 6: 0. The pumps are just as easy to operate as the popular ProMinent® Gamma/ L and Sigma series. They have excellent proportional control with higher turn-down ratio 100:1 and have Low level indication, Self balanced foot valve with the provision of low level sensor attachment Proton Dosing Pumps can be used in water treatment plants and softeners. Metering pumps that use a variable speed drive will deliver a turndown ratio that is determined by dividing application. Offering an industry leading 10,000:1 turndown ratio (M Series) and 2,500:1 (A Series) turndown ratio these pumps also have an array of control options. Advanced noise reduction virtually silences the pump, making it ideal for household applications. Can be programmed in daily or weekly cycles. EXCLUSIVE TO M-2: Optional Communication Protocols: Profibus DPV1, Modbus RTU, Modbus-TCP, and EtherNet/IP. Dispensers and Pumps for Dosing, Applying and Spraying Applications. 3 The EHE is the workhorse of the E-Series metering pumps. Durable Stroke Adjustment Mechanism Although many metering pumps have a broad turndown ratio, they are more accurate and can help achieve better residual control when operating at the middle to upper end of the pump range. The pump is certified for compliance to UL and CSA standards. 200:1 turndown ratio. 4 l/min of flow. 033 gph (125 l/hr) up to 2080 gph (7873 l/hr) per drive Pressures range from 100 psi (7 bar) in higher capacities up to 20,000 psi (1380 bar) in lower capacities ± 1% steady state accuracy over 10:1 turndown ratio. ,Ltd. 10 to 1 verses 100 to 1 sounds like 10 times more, but it only increases the usable range by 9% of full capacity. Precise chemical dosing All major feeder components are secured by stainless steel locking rivets for quick disassembly without tools. 6 lph) @ 50 PSIG (3. High resolution motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 1000:1 and flowrates from 300 L/H down to 7. 01rpm resolution (10000:1 turndown ratio), and flow rate calibration function, the pump has more accurate and wider range of flow rate. • 100:1 turndown ratio • Metering performance reproducible to within ±3% of maximum capacity • ETL certified for indoor and outdoor use per UL standard 778, as well as CSA standard C22. Benefits Metering pumps should never be oversized, meaning that determining the exact flow rate that is required for the application is of paramount importance. In the display, the setting of the pump is read out directly in ml/h or l/h, pulse or batch. The scheme shown in Fig 10. Combining the Walchem EHE Series pump performance with a turndown ratio of 1800:1 yields a versatile pump for the water treatment industry. Turndown is expressed as a ratio of the me-tering pump output. Turndown ratio up to 500:1. In this method, the number of doses remains constant with the size of each dose reduced, resulting in doses that are uniformly distributed in a constantly flowing line. Full stroke length at all times Grundfos is the only pump manufacturer to use a full stroke length Meets and Exceeds: API 675. 00 gpd; Max. Manually adjustable stroke length provides accurate pump output adjustment. 3. In general a orifice plates has turndown ratio between 3:1 and 5:1. 5mL/H. Adjustable pumps feature a unique feed rate control module for precise measurement with a turndown ratio of 20:1. 6 BAR), and flow capacities up to 30 GPD (4. The pumps are simple to operate with only three pushbutton keys and the unmatched turndown ratio provides both versatility and high resolution chemical feed which eliminates slug-feeding effects. The Grundfos SMART Digital dosing range is the industry’s leader in accurate, reliable chemical dosing. 8** 5. Metering pumps generally work within the following ranges: Flow rate ranges between . 13: 200: 6 x 4: 1. Four distinct models are available, having pressure capabilities to 150 PSIG (10 BAR) @ 6 GPD (0. Accurate Speed Control Provides precise stroke rate and a turndown ratio up to 1000:1 for unmatched versatility. 8 lph) and flow capacities to 44 gpd @ 100 psi (7 bar), with a turndown ratio of 100:1. Approvals: Conforms to ANSI/NSF STD. With the addition of the DC motor option or VFD, the turndown ratio increases to 100:1 and the control capability expands to include a 4-20 mA input control signal. The EXCEL AD pump provides industry solutions for more versatile chemical injection with up to 1000:1 turn-down capacity to take control of your application. High Turndown Ratio Exact motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 (300 l/h to 200 ml/h). Standard Features. Turndown & Accuracy Over the years, different metering pump manufacturers have promoted turndown capabilities of 1,000-, 3,000- or even 1 million-to-1. AN M-2 EXCLUSIVE: Firmware is field upgradable; always stay up-to-date with latest software. 8 … High Compression Ratio The compression ratio of a metering pump is important because it affects the pump’s ability to prime and vent. Turndown of the suction multifunction stepper motor-driven dosing pump turndown ratio 1:4800 slow suction modes (x4) for viscous media color status display alarm indication on display liquid ends available in different sizes and materials double ball check valve capacity range 5 – 80 l/h, up to 20 bar over a range determined by the pump's turndown ratio. Thus a Turn Down Ratio of 100 means that the pump is capable of dosing down to 1/100th of its maximum output. 2 Bar) with capacities between . DDA 7. Two new sizes pro-vide even more flexibility, from 0. IX Series pumps use efficient Brushless DC motors for speed control. Iwaki America has a complete line of both magnetically driven centrifugal pumps and air-operated double diaphragm pumps. 6 lph) @ 30 PSIG (2 BAR), with a turndown ratio of 100:1. 6 l/h • Max pressure from 4. Metering pumps that use a variable speed drive will deliver a turndown ratio that is determined by dividing the pump’s stroke speed by its minimum operating speed. 2 and NSF standard 50. In the display, the setting of the pump is read out directly in ml/h or l/h, pulse or batch. Centrac is an example of a new generation metering pump that features higher accuracy, and a greater turndown ratio of 100:1. Inputs include: 4-20mA, 0-10Vdc, and Pulse inputs for remote external speed control and 0-30 VDC / contact closure remote start/stop all via an operator friendly digital touch pad with menu Advanced microprocessor control and a turndown ratio of 360:1 make this series an exceptional value. Pump head Types Double diaphragm type Plunger type Std paint system To suit general industrial requirements, top coat color RAL 5010 gentian blue for metallic surfaces except stainless steel Execution Without baseframe Without heating jacket Mounting side A API 675 3rd Edition Metering accuracy of 1% at a turndown ratio of 10:1 Linearity of 3% lubricated. 2500:1 turndown ratio and continuous feed. 25 lph), and flow capacities to 44 GPD (7. PUMP SERIES EZ = Electronic metering pump with manual speed control The H25 Metering Series Industrial Pumps are hydraulically balanced diaphragm pumps engineered to pump at up to 1200 gpm, while providing [+ or -] 1% steady state accuracy with a 10:1 turndown ratio. Highly precise control offers a solution for a variety of dosing applications. 100:1 Duty Cycle . Our pumps are solenoid driven and have High voltage protection to prevent damage of Pulsar. At 10 to1 turndown ratio, the pump gives excellent performance between 10 GPH and 100 GPH. it means prisma can split up the dosing process into a maximum of 4800 steps in order to offer the most homogeneous and precise distribution of the product a single peristaltic pump can cover. Metering performance is reproducible to within ± 2% of maximum capacity. The DDE is the cost-effective entry-level model with all the benefits of Digital Dosing such as a maximum turn-down ratio of 1:1000 and smooth, continuous dosing. It covers a feed range from 2. With that in mind, a metering pump should be sized so that the maximum expected flow rate is 85% to 90% of the pump’s capacity, which will leave room for additional capacity, if needed. EHE Series pumps have outputs up to 20 GPH (75 l/h) and pressure capabilities to 150 PSI (10 bar). Four distinct models are available, having pressure capabilities of 80 PSIG (5. This provides a turndown ratio of 36,000:1. Turndown Ratio. 3 GPH and pressure capabilities to 150 PSI. 5 mls/ hour to 45 l/ hour. 3 BAR), with a turndown ratio of 10:1 The BLACKLINE Series MD is a motor driven, spring return mechanical diaphragm metering pump for precise and accurate metering control. solution for a variety of dosing applications. With a turndown ratio ten times better than that of traditional equipment, the DME Digital Dosing pumps offer maximum flexibility and accuracy. High Compression Ratio The compression ratio of a metering pump is important because it affects the pump’s ability to prime and vent. 08: 200: 6 x 4: 1. Low cost option for stepper motor driven metering pump. For example, a device with a maximum output of 10 units and a minimum output of 2 units has a turndown ratio of 5. 1 – GMXa 0424: 4: 22. The Encore® EA/EB model is available in three capacity ranges, up to 27. In this method of control, the number of doses will remain constant with the size of each dose reduced, resulting in doses that are uniformly distributed in a constantly flowing line. An industry standard for over 20 years, the Series B Chemical Metering Pump is a rugged, reliable choice for the harshest environments. Easy to install – Set the pump to discharge the exact quantity of dosing liquid required Profibus interface – receive supply performance data and status information for quality control and preventative maintenance. 5: 0. In addition to an extended capacity range and a turn-down ratio of up to 1:3000, it boasts patented sensor technology to measure and verify flow, in addition to pressure monitoring. 0% Maximum capacities range from 0. The advanced design enables the pumps to respond instantly to changes in dosage rate, making it the ideal metering pump for a wide range of flow rates in water and wastewater treatment applications. a very high ratio between the maximum and minimum potential flow rates. 5 lph), and flow capacities to 600 GPD (94. Reliable, accurate, automatic and repeatable: For precise material handling and exact compliance with the dosing volume or mixing ratio. Turndown Ratio = maximum flow / minimum flow For example, if a given flow meter has a 50:1 turndown ratio the flow meter is capable of accurately measuring down to 1/50 th of the maximum flow. A turndown ratio of 10:1 for a metering pump is pretty common, it means the pump will cover a range from 1 unit/time to 10 units/time. Smooth and Continuous Dosing High Turndown Ratio Motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 (300 l/h to 200 ml/h). 5 m water Enclosure Rating . View and Download Grundfos DDA 7. If the process requires flows from 10 to 100 GPH, a 100 GPH pump with a 5:1 turn down would only dispense 20 to 100 GPH and not meet the specification. 02 ml/min to 8 l/min; Smallest dosing quantity: 0. 5-16 water pump pdf manual download. Our best value in a pump with this capacity. A variable speed drive will enable the pump to inject a dose of the same size on each stroke, but since the stroke speeds will change, the doses themselves will be less frequent. 8** 3. And today, our trademark black and yellow has come to stand for quality, reliability, superior design and excellence in service. 5mL/H. Volume flow: 0. The optoDrive® allows the suction & discharge stroke duration to be adjusted. The turndown ratio - TR - for an orifice meter with maximum flow of 12 kg/s and a minimum flow of 3 kg/s can be calculated as: TR = (12 kg/s) / (3 kg/s) = 4. • Metering performance reproducible to within +/-3%. EZ pumps have outputs to 6. DDE B Basic manual control DDE P B + pulse control DDE PR P + relay output. Average Current Draw: @ 115 VAC; Amps: 1. Introducing the Blue-White A4F Series Peristaltic Metering Pump. Most metering pumps have a turndown ratio of 10:1 which simply means that the pump is within its accuracy rating anywhere between ten per cent and 100 per cent of capacity. 3 Amps Peak Input Power: 130 Watts Average Input Power @ Max SPM: 50 Watts EMP025 B15 Dimensions Engineering Data The electromagnetic (solenoid) driven diaphragm-metering pump provides accurate output with more advanced controls. Some solenoid dosing pumps also allow a variable stroke length and stroke rate. Only two pump sizes cover the range from 0. Its 100% enclosed chemical resistant housing provides this unit with ultimate protection, making it ideal for corrosive chemical dosing. NEMA 4X/IP65 enclosures for protection against corrosive environments. Turn-down ration of 1:800. Milton Roy Electronic Dosing / Metering Pumps. LMI’s family of electronic metering pumps offer : Adjustable stroke and the flexibility of up to 1000:1 turndown ratio. Viscosity - Pumps 300 cps; HP - Pumps 1/60 hp; Phase - Pumps 1; Flow Rate Output Control Adjustable; Turn Down Ratio - Pumps 10:1; Reproducibility - Pumps +/-5. With a powerful variable-speed stepper motor and a turn-down ratio of up to 1:3000, the DDA dosing pump ensures smooth, continuous and ultra-precise dosing in any application that requires chemical treatment and/or conditioning of media. Metering performance is reproducible to within ± 3% of maximum capacity. 8 gph or 200 l/h) and smooth, continuous dosing. Our strength lies in manufacturing multiple varieties in small lots,which helps us in satisfying the needs of multiple industrial areas. The “V” Series pump is a range of compact, self-contained, pneumatic metering plunger pumps offering redundant mechanical seals. Peak Input Power: 300 Watts . Furthermore, with a very wide turndown ratio (100:1 for smaller pumps 800:1 for large pumps) and no need for complicated stroke rate calculations, the system is truly plug & play. EHE Series pumps have outputs up to 20 GPH (75 l/h) and pressure capabilities to 150 PSI (10 bar). . These pumps feature precise variable-speed stepper motors, a turndown ratio of up to 3,000:1, and other SMART components. The diaphragm is long life reinforced PTFE (Teflon) material. 02 to 39. Below the stated turndown, accuracy cannot be guaranteed. If a pump is capable of a maximum of 1,000 gallons per hour (gph) and it has a 100-to-1 turndown ratio, then it can be adjusted to a flow rate as low as 10 gph and still perform within its accuracy rating. 3 GPH and pressure capabilities to 150 PSI. • 5:1 turndown ratio. Control Improvements and Turndown Ratios In the 1980s and 1990s, manufacturers of dosing pumps focused on broadening the ways that metering pumps could be controlled, and on lowering the overall device cost while using control to improve accuracy. Other optional features include external stop function and 2000:1 turndown control. Metering pumps that use a variable speed drive will deliver a turndown ratio that is determined by dividing the pump’s stroke speed by its minimum operating speed. The advanced design enables the pumps to respond instantly to changes in dosage rate, making it the ideal metering pump for a wide range of flow rates in water and wastewater treatment applications. 4 ml/hr, pressures to 5. Combining the EHE performance with a turndown ratio of 1800:1 yields one of the most versatile pumps in the water treatment industry today. Our best value in a pump with this capacity. IX Series pumps use efficient brushless DC motors for speed control. • Manually adjustable stroke length provides accurate pump output adjustment. Pump Tubes in Norprene or Tygothane meet FDA criteria for food. Outputs to 6. Manual stroke length control standard (optional VFD) Accuracy up to ± 1%. 60: 200 which will deliver a full 10:1 turndown ratio. Max. Feedrates up to 5. Stroke Frequency Turn-Down Ratio: 10:1 /100:1 by Model Stroke Length Turn-Down Ratio: 10:1 Power Input: 115 VAC/50-60 HZ/1 ph 230 VAC/50-60 HZ/1 ph Average Current Draw: @ 115 VAC; Amps: 0. Features The smart digital DDE dosing pump from Grundfos has a variable speed drive ( Stepper motor) and intelligent electronics with minimum energy consumption. Voltage: 100 - 240 V, 50 In addition, these pumps offer a 100:1 turndown ratio. See full list on pumpsandsystems. A large turndown ratio (1,000:1) allows users to standardize on one pump for all chemical-feed applications. Only Blue-White manufactures the genuine CHEM-FEED® metering pump. 02 to 248 GPH (up to 940 l/hr) Max pressure: 145 PSI; 1:800 turndown ratio, +/- 1% repeatable accuracy through entire adjustable range; Mircroprocessor controlled variable speed motor (1×100-240V, 50/60Hz) . 7 gph. A variable speed drive will enable the pump to inject a dose of the same size on each stroke, but since the stroke speeds will change, the doses themselves will be less frequent. As long as your requirements fall within the pump's minimum and maximum capacity limits it will do what you want it to do (assuming it will also develop the pressure you need, handle the viscosity, meet NPSHA, etc). Bleed Valve: • Auto-deaeration during pump standby • Flexible Fieldbus control • Turn-down ratio 3000:1 with constant 100% stroke length DDC Models • Optimal price-performance ratio • Flow and pressure up to 4 gph and up to 145 psi • Two SlowMode functions (25% and 50%), calibration mode, Y service display Nine distinct models are available, having flow capabilities to 132 GPH (500 LPH) and pressures to 150 PSI (10 BAR), with a standard turndown ratio of 10:1 or up to 100:1 with the optional VFD Vector. 0 GPH (. Most metering pumps have a turndown ratio of 10:1, which simply means that the pump is within its accuracy rating anywhere between 10 per cent and 100 per cent of capacity. For more information, request publica-tion TI 460. Most metering pumps have a turndown ratio of 10:1, which simply means that the pump is within its accuracy rating anywhere between 10% and 100% of capacity. 7 – GMXa 0414: 4: 12. High Accuracy: Combined with precise motor control, an efficient valve design maintains accurate flow rates allowing a low cost, mechanically-driven diaphragm pump to achieve a high accuracy of ±1%. ProMinent® offers the revolutionary new optoDrive® for the first time in the delta® series. The pump can then dose its fluid proportionally - In this case it may be dosing caustic soda according to correct acidic effluent. For example, if a pump has a turndown ratio of 1000:1, that means it should be able to move anywhere from 1,000 GPH or 1 GPH within the same accuracy rating. 0: 1. All E-Class pumps feature a very high compression ratio that ensures Metering Pump Reciprocating Diaphragm Metering Pump Stroke Cycle Control of Reciprocating Metering Pump Output Turndown Ratio What claims to be a Metering Pump, but isn’t? Metering Pump Liquid Ends Mechanically-Actuated Diaphragm Liquid End Packed Plunger Liquid End Hydraulically-Driven Diaphragm Liquid End Linear (solenoid) Drive Linear The Pulsatron Series E offers manual function controls over stroke length and stroke rate providing a turn down ratio of 100:1. Metering Pumps - Long Service Life, Low Maintenance The simple mechanically actuated diaphragm design eliminates pesky hydraulic systems and packing glands used in many metering pumps. Average Input Power @ Max SPM: 130 Watts . High Turndown Ratio Exact motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 (300 l/h to 200 ml/h). The outputs range from 0. 8** 3. Today’s hydraulically actuated metering pumps have a turndown ratio of 1,000-1, which means the pump will accurately dose chemicals anywhere between. 0 lph) @ 100 PSIG (7 BAR), with a turndown ratio of 100:1. An industry standard for over 20 years, the Series B Chemical Metering Pump is a rugged, reliable choice for the harshest environments. This enables oversize pumps to be installed in applications where output requirements fluctuate, or to accomodate future system growth. Also for: Dda 12-10, Dda 12-17-7, Dda 30-4. 2: 0. 1000:1 turndown ratio. a turn down ratio of 100:1. To calculate the turndown ratio, multiply the stroke and frequency turndowns together (10/1 x 180/1) to get a turndown ratio of 1800:1. For applications that require extreme accuracy and continuous duty the A4 can do the job. 47 ml/h - 940 l/h. Turndown ratio refers to the width of the operational range of a device, and is defined as the ratio of the maximum capacity to minimum capacity. 8** 3. Repetitive accuracy of +/- 1% over a 10:1 turndown ratio is achieved with the stroke adjustment knob located conveniently on the top of the pump. 5 lph) @ 20 psi (13 bar), with a turndown ratio of 1000:1. 15 ft. Grundfos DDI pumps provide Digital Dosing from 75 ml/h up to 150 l/h with a real setting of the flow rate. Continuous Maximum Viscosity . 3 to 1499. No Welds on Wet End Parts. Senses chemical in the pump head, shuts off the pump and activates an NPN open collector output. 1 – GMXa 0715: 7: 13. In addition, these pumps offer a 100:1 turndown ratio. 5% over the entire turndown range. Compact design TURNDOWN PRISMA stepper motor-driven pumps give you the most accurate control over the stroke speed, providing an outstanding turndown ratio of up to 4800:1. Grundfos 91835049, model DMX 221, IP 65 enclosure, Worm/Wheel drive type, max pressure 10 bar, seal PTFE, Gasket seal type, motor voltage 120 V, 50/60 Hz, PTFE balls, PVC dosing head, max flow 27 l/h, max temperature 68°F (20°C), 3/8 in inlet size, 1/2 in outlet size, max viscosity 200 cps, turndown ratio of 1:10, accuracy of +/-1. If a pump is capable of a maximum of 1,000 gallons per hour (gph) and it has a 100-to-1 turndown ratio, then it can be adjusted to a flow rate as low as 10 gph and still perform within its accuracy rating. This digital dosing pump has an unparalleled 4800 to 1 turndown ratio, whilst providing continuous chemical feed over the dosing range. A turndown ratio of 1:100 for each pump size. Ideal for water supply, wastewater, and water treatment applications – this wide dosing range offers a turndown ratio of 800:1. Simple to operate microprocessor control with a turndown ratio of 360:1. 27 gph (4. Liquid End: The liquid end is referred to as the “wetted” part of the pump. In addition, these pumps offer a 100:1 turndown ratio. Note 1: Standard turndown ratio of the LK is 10:1. 94 l/h), back pressures to 250 solution for a variety of dosing applications. 7 – GMXa 0220: 2: 18. • Eight sizes to handle capacities to 1. Metering Pumps High Turndown Ratio Motor control adjusts the discharge and suction speeds to meet a full and accurate turndown ratio of 750:1 (300 l/h to 200 ml/h). Sandwich diaphragm pressure leak detection. 1 lph), with a turndown ratio The OMNI mechanical diaphragm metering pump is OMNI series pumps are an outstanding choice for the customer looking for a simple and compact diaphragm metering pump. it means prisma can split up the dosing process into a maximum of 4800 steps in order to offer the most homogeneous and precise distribution of the product to dose according to the required application. You get the precision you want every time - and need only a minimum of spare parts and storage capacity. The DDE is a cost-effective entry-level model with all the benefits of Digital Dosing™ such as a maximum turn-down ratio of 1000:1 (max flow 4 gph or 15 l/h) and 800:1 (max flow 52. Thus a Turn Down Ratio of 100 means that the pump is capable of dosing down to 1/100th of its maximum output. Turn down ratio 10/1. 20:1 turndown ratio. Chemical Metering Pump, Chemical Dosing Pump, Mechanical Pump manufacturer / supplier in China, offering Lmi Water Treatment Milton Roy Dosing Pump, Apure 4 20mA RS485 Digital Water Quality Probe pH Sensor, 0-14pH Online Automatic Water Sensors pH Sensor/pH Probe/pH Electrode and so on. The 1800:1 turndown ratio provides the ability to accurately control a high capacity pump to very low outputs, without compromising accuracy. Turndown of the suction stroke to 75%, 50% or 25% of the maximum speed ensures optimal priming and displacement of even the most difficult liquids. Metering pumps | Iwaki Co. Adjustable stroke frequency and the flexibility of up to 1000:1 turndown ratio. Metering performance is reproducible to within +/- 3% of maximum capacity. stepper motor design. Reduction of pressure surges, preventing mechanical stress on diaphragm, tubes, connections and other dosing parts exposed to leakage and wear. Soleniod pump models: 5 amps @ 115 volts; Motor-driven pump models: 15 amps @ 115 volts LMI’s family of electronic metering pumps offer: • Adjustable stroke frequency and the flexibility of up to 1000:1 turndown ratio • Manually adjustable stroke length provides accurate pump output adjustment • NEMA 4X / IP65 enclosures for protection against corrosive environments • Time tested electronics for reliable, repeatable Offering an industry leading 10,000:1 turndown ratio (M Series) and 2,500:1 (A Series) turndown ratio these pumps also have an array of control options. 5 mL/H. Power Input: 115 VAC/50-60 HZ/1 ph . ProMinent® offers the revolutionary new optoDrive® for the first time in the delta® series. Key Features – Econo Series Turndown ratio 1:800 With a turndown ratio ten times better than that of tradi-tional equipment, the large Digital DosingTM pumps give you greater flexibility and accuracy than ever. Even viscous liquids and suspended solids can be metered and pumped with precise accuracy. Turn Down Ratio . 5 lph), and flow capacities to 504 gpd (79. - 1:3000 or 1:1000 turndown ratio - PVC, PVDF, Polypropylene & 316 SS materials CSS REF Description Capacity Connection size PRICE Enquire; 96524941: DME 375-10 AR Wetted parts PP/EPDM/Ceramic* 500ml-376l/hr @ 10 bar: Rp 1 ¼" £3,440. In the past they have needed two different sizes of solenoid metering pumps to meet the treatment chemical flow range. com. SPECIFICATIONS. GPH Control system designed to permit connection to SCADA systems and other remote controllers for chemical dosing control. Turndown can be greatly increased with options. Metering Pumps – Long Service Life, Low Maintenance. The EHE is the workhorse of the E-Series metering pumps. Metering Pumps, Dosing Pump, Chemical Dosing Pump manufacturer / supplier in China, offering Lmi Electric Milton Roy Small Dosing Metering Pumps, Apure 4 20mA RS485 Digital Water Quality Probe pH Sensor, 0-14pH Online Automatic Water Sensors pH Sensor/pH Probe/pH Electrode and so on. The 1800:1 turndown ratio provides the ability to accurately control a high capacity pump to very low outputs, without compromising accuracy. The pumps are simple to operate with only three pushbutton keys and the unmatched turndown ratio provides both versatility and high resolution chemical feed which eliminates slug-feeding effects. Note 2: Pumps (should always be shielded from direct exposure to the elements) The variation by a factor of 10 in both Stroke Length and Stroke Rate gives rise to a Turn Down Ratio of 10 x 10 = 100. 1-100 %. Switch-mode power supply According to Milton Roy company, although a metering pump can generally be adjusted to pump at any flow rate between 0 and its maximum capacity, its accuracy is measured over a range determined by the pump's turndown ratio. Metering performance is reproducible to within ± 2% of maximum capacity. - 1:3000 or 1:1000 turndown ratio - PVC, PVDF, Polypropylene & 316 SS materials Flowrox dosing pump has a high turndown ratio and are ideal for dosing and flow control. Optional Interfaces for Profibus or CAN bus. 08: 200: 8 x 5: 1. Turndown of the suction stroke to 75 %, 50 % or 25 % of the maximum speed ensures optimal priming and displacement of even the most difficult liquids. High Accuracy Combined with precise motor control, an efficient valve design maintains accurate flow rates to OVERVIEW. Adjustable 60 second repeating interval timer. turndown ratio in dosing pump