Products
Manufacturer
Diaphragm Pump, Walchem, EW
$575.32 call to order
Manufacturer:
- Walchem (more...)
Manufacturer Links:
File Downloads:
- EW Dimensions.pdf (148.28 KB)
- EW Specs.pdf (21.81 KB)
- EW Brochure.pdf (359.14 KB)
- EW-F Manual & Parts Breakdown.pdf (2.24 MB)
- EW-Y Manual & Parts Breakdown.pdf (2.01 MB)
Water Treatment Canada
Metering Pump, Injection Pump
- Pump Selection Guide
- Solenoid driven diaphragm pump
- Manual on/off or external digital/analog control
- Max Output: 0.6 GPH - 6.7 GPH
- Max Pressure: 30 - 150 PSI
- 1800:1 turndown ratio
- 1 - 360 Strokes/min.
- Stroke length and speed adjustment
- See brochure for wetted materials selection
The EW Series Parts Breakdown can be found in the above download (EW Manual & Parts Breakdown), parts can be sold separately. The Spare Parts Kit (includes: diaphram, diaphram spacer, o-rings, gaskets, cartridge valves, allen wrench) and pricing can be found in the downloadable Price Guide on our Home Page. The Price List for different pump models can be found in the Price Guide or in the chart below.
Parts & Accessories:
Valves, Tubbing, Spare Parts Kit, Mounting Bracket, Chemical Tank, Mixer, Level Switch, Flow Meter.
The EW Series is the flagship of the E-Class with capacities up to 6.7 GPH (25.4 l/h) and a maximum pressure of 150 PSI (10 bar). Compact, powerful and packed with a variety of innovative design features the EW can enhance any feed application. Used as a water chlorinator, injection system or chemical feeder.
IP65 Construction
The rugged Polyphenylene Oxide (PPO) enclosure is equipped with a durable clear cover to protect the membrane switches and stroke control of the pump, which are mounted opposite the liquid end. The display utilizes a high temperature LCD that provides extra protection from sunlight in outdoor applications.
Control Features
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Feed Accuracy - Powered by the E-Class 360 Stroke-Per-Minute technology the EW has an incredible adjustment range of 1800:1 ensuring precise feed control for any application.
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Analog Input Control - Fixed or scalable 4-20MA input control.
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Pulse Input Control - Pulse input with multiply and divide features (1-9999). 12VDC output power supply for Hall Effect water meters.
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Stop Input Control - A stop input contact will stop pump operation and close the stop output relay contact for external control, alarm or remote notification. A red LED locally indicates a stopped condition.
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Pre-Stop Input - A pre-stop input contact will illuminate an orange LED, locally providing warning while pump continues to operate.
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Feed Verification - The EW is equipped with 3-preprogrammed modes for accepting our Posiflow Feed Verification Sensor. The Posiflow provides a pulse feedback to the pump to verify prime and proper feed. Depending on the mode, the user can program to pump to stop, continue operating and/or send an alarm based on the Posiflow input.
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Outputs - A stop condition and synchronous pulse outputs are standard outputs, however the output relays can be programmed to signal any pump condition.
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Easy Draw-Down Calibration - In the calibration mode the user only needs to start and stop the pump, enter the draw-down volume and the pump calibrates volume-per-stroke.
| Product # | Description | Price |
| EWB11F1-FC | Metering Pump, 0.6 GPH, 150 PSI | $760.73 |
| EWB11F1-PC | Metering Pump, 0.6 GPH, 150 PSI | $575.32 |
| EWB11F1-PCH | Metering Pump, 0.3 GPH, 250 PSI | $610.78 |
| EWB11F1-PCM | Metering Pump, 0.6 GPH, 150 PSI | $613.82 |
| EWB11F1-PE | Metering Pump, 0.6 GPH, 150 PSI | $575.32 |
| EWB11F1-PEH | Metering Pump, 0.3 GPH, 250 PSI | $610.78 |
| EWB11F1-PEM | Metering Pump, 0.6 GPH, 150 PSI | $613.82 |
| EWB11F1-SH | Metering Pump, 0.6 GPH, 150 PSI | $1,213.62 |
| EWB11F1-TC | Metering Pump, 0.6 GPH, 150 PSI | $715.14 |
| EWB11F1-VC | Metering Pump, 0.6 GPH, 150 PSI | $575.32 |
| EWB11F1-VCA | Metering Pump, 0.6 GPH, 110 PSI | $631.05 |
| EWB11F1-VCA-H | Metering Pump, 0.6 GPH, 110 PSI | $751.62 |
| EWB11F1-VCM | Metering Pump, 0.6 GPH, 150 PSI | $613.82 |
| EWB11F1-VE | Metering Pump, 0.6 GPH, 150 PSI | $575.32 |
| EWB11F1-VEM | Metering Pump, 0.6 GPH, 150 PSI | $613.82 |
| EWB11F1-VF | Metering Pump, 0.6 GPH, 150 PSI | $575.32 |
| EWB11Y1-FC | Metering Pump, 0.6 GPH, 150 PSI | $958.30 |
| EWB11Y1-PC | Metering Pump, 0.6 GPH, 150 PSI | $772.89 |
| EWB11Y1-PCM | Metering Pump, 0.6 GPH, 150 PSI | $811.39 |
| EWB11Y1-PE | Metering Pump, 0.6 GPH, 150 PSI | $772.89 |
| EWB11Y1-PEM | Metering Pump, 0.6 GPH, 150 PSI | $811.39 |
| EWB11Y1-SH | Metering Pump, 0.6 GPH, 150 PSI | $1,411.19 |
| EWB11Y1-TC | Metering Pump, 0.6 GPH, 150 PSI | $912.71 |
| EWB11Y1-VC | Metering Pump, 0.6 GPH, 150 PSI | $772.89 |
| EWB11Y1-VCA | Metering Pump, 0.6 GPH, 110 PSI | $828.62 |
| EWB11Y1-VCM | Metering Pump, 0.6 GPH, 150 PSI | $811.39 |
| EWB11Y1-VE | Metering Pump, 0.6 GPH, 150 PSI | $772.89 |
| EWB11Y1-VEM | Metering Pump, 0.6 GPH, 150 PSI | $811.39 |
| EWB11Y1-VF | Metering Pump, 0.6 GPH, 150 PSI | $772.89 |
| EWB16F1-FC | Metering Pump, 1.0 GPH, 105 PSI | $789.10 |
| EWB16F1-PC | Metering Pump, 1.0 GPH, 105 PSI | $603.69 |
| EWB16F1-PCM | Metering Pump, 1.0 GPH, 105 PSI | $642.19 |
| EWB16F1-PE | Metering Pump, 1.0 GPH, 105 PSI | $603.69 |
| EWB16F1-PEM | Metering Pump, 1.0 GPH, 105 PSI | $642.19 |
| EWB16F1-TC | Metering Pump, 1.0 GPH, 105 PSI | $743.51 |
| EWB16F1-VC | Metering Pump, 1.0 GPH, 105 PSI | $603.69 |
| EWB16F1-VCA | Metering Pump, 1.0 GPH, 65 PSI | $659.42 |
| EWB16F1-VCM | Metering Pump, 1.0 GPH, 105 PSI | $642.19 |
| EWB16F1-VE | Metering Pump, 1.0 GPH, 105 PSI | $603.69 |
| EWB16F1-VEM | Metering Pump, 1.0 GPH, 105 PSI | $642.19 |
| EWB16F1-VF | Metering Pump, 1.0 GPH, 105 PSI | $603.69 |
| EWB16Y1-FC | Metering Pump, 1.0 GPH, 105 PSI | $986.67 |
| EWB16Y1-PC | Metering Pump, 1.0 GPH, 105 PSI | $801.26 |
| EWB16Y1-PCM | Metering Pump, 1.0 GPH, 105 PSI | $839.76 |
| EWB16Y1-PE | Metering Pump, 1.0 GPH, 105 PSI | $801.26 |
| EWB16Y1-PEM | Metering Pump, 1.0 GPH, 105 PSI | $839.76 |
| EWB16Y1-TC | Metering Pump, 1.0 GPH, 105 PSI | $941.08 |
| EWB16Y1-VC | Metering Pump, 1.0 GPH, 105 PSI | $801.26 |
| EWB16Y1-VCA | Metering Pump, 1.0 GPH, 65 PSI | $856.98 |
| EWB16Y1-VCM | Metering Pump, 1.0 GPH, 105 PSI | $839.76 |
| EWB16Y1-VE | Metering Pump, 1.0 GPH, 105 PSI | $801.26 |
| EWB16Y1-VEM | Metering Pump, 1.0 GPH, 105 PSI | $839.76 |
| EWB16Y1-VF | Metering Pump, 1.0 GPH, 105 PSI | $801.26 |
| EWB21F1-FC | Metering Pump, 1.8 GPH, 60 PSI | $817.47 |
| EWB21F1-PC | Metering Pump, 1.8 GPH, 60 PSI | $632.06 |
| EWB21F1-PCM | Metering Pump, 1.8 GPH, 60 PSI | $670.56 |
| EWB21F1-PE | Metering Pump, 1.8 GPH, 60 PSI | $632.06 |
| EWB21F1-PEM | Metering Pump, 1.8 GPH, 60 PSI | $670.56 |
| EWB21F1-SH | Metering Pump, 1.8 GPH, 60 PSI | $1,270.36 |
| EWB21F1-TC | Metering Pump, 1.8 GPH, 60 PSI | $771.88 |
| EWB21F1-VC | Metering Pump, 1.8 GPH, 60 PSI | $632.06 |
| EWB21F1-VCM | Metering Pump, 1.8 GPH, 60 PSI | $670.56 |
| EWB21F1-VE | Metering Pump, 1.8 GPH, 60 PSI | $632.06 |
| EWB21F1-VEM | Metering Pump, 1.8 GPH, 60 PSI | $670.56 |
| EWB21F1-VF | Metering Pump, 1.8 GPH, 60 PSI | $632.06 |
| EWB21Y1-FC | Metering Pump, 1.8 GPH, 60 PSI | $1,015.04 |
| EWB21Y1-PC | Metering Pump, 1.8 GPH, 60 PSI | $829.63 |
| EWB21Y1-PCM | Metering Pump, 1.8 GPH, 60 PSI | $868.13 |
| EWB21Y1-PE | Metering Pump, 1.8 GPH, 60 PSI | $829.63 |
| EWB21Y1-PEM | Metering Pump, 1.8 GPH, 60 PSI | $868.13 |
| EWB21Y1-SH | Metering Pump, 1.8 GPH, 60 PSI | $1,467.93 |
| EWB21Y1-TC | Metering Pump, 1.8 GPH, 60 PSI | $969.45 |
| EWB21Y1-VC | Metering Pump, 1.8 GPH, 60 PSI | $829.63 |
| EWB21Y1-VCM | Metering Pump, 1.8 GPH, 60 PSI | $868.13 |
| EWB21Y1-VE | Metering Pump, 1.8 GPH, 60 PSI | $829.63 |
| EWB21Y1-VEM | Metering Pump, 1.8 GPH, 60 PSI | $868.13 |
| EWB21Y1-VF | Metering Pump, 1.8 GPH, 60 PSI | $829.63 |
| EWB31F1-FC | Metering Pump, 3.3 GPH, 30 PSI | $894.47 |
| EWB31F1-PC | Metering Pump, 3.3 GPH, 30 PSI | $709.06 |
| EWB31F1-PE | Metering Pump, 3.3 GPH, 30 PSI | $709.06 |
| EWB31F1-SH | Metering Pump, 3.3 GPH, 30 PSI | $1,518.58 |
| EWB31F1-TC | Metering Pump, 3.3 GPH, 30 PSI | $848.88 |
| EWB31F1-VC | Metering Pump, 3.3 GPH, 30 PSI | $709.06 |
| EWB31F1-VE | Metering Pump, 3.3 GPH, 30 PSI | $709.06 |
| EWB31F1-VF | Metering Pump, 3.3 GPH, 30 PSI | $709.06 |
| EWB31Y1-FC | Metering Pump, 3.3 GPH, 30 PSI | $1,092.04 |
| EWB31Y1-PC | Metering Pump, 3.3 GPH, 30 PSI | $906.63 |
| EWB31Y1-PE | Metering Pump, 3.3 GPH, 30 PSI | $906.63 |
| EWB31Y1-SH | Metering Pump, 3.3 GPH, 30 PSI | $1,716.15 |
| EWB31Y1-TC | Metering Pump, 3.3 GPH, 30 PSI | $1,046.45 |
| EWB31Y1-VC | Metering Pump, 3.3 GPH, 30 PSI | $906.63 |
| EWB31Y1-VE | Metering Pump, 3.3 GPH, 30 PSI | $906.63 |
| EWB31Y1-VF | Metering Pump, 3.3 GPH, 30 PSI | $906.63 |
| EWC16F1-FC | Metering Pump, 1.3 GPH, 150 PSI | $952.22 |
| EWC16F1-PC | Metering Pump, 1.3 GPH, 150 PSI | $765.80 |
| EWC16F1-PCH | Metering Pump, 0.6 GPH, 250 PSI | $801.26 |
| EWC16F1-PCM | Metering Pump, 1.3 GPH, 150 PSI | $804.30 |
| EWC16F1-PE | Metering Pump, 1.3 GPH, 150 PSI | $765.80 |
| EWC16F1-PEH | Metering Pump, 0.6 GPH, 250 PSI | $801.26 |
| EWC16F1-PEM | Metering Pump, 1.3 GPH, 150 PSI | $804.30 |
| EWC16F1-TC | Metering Pump, 1.3 GPH, 150 PSI | $906.63 |
| EWC16F1-VC | Metering Pump, 1.3 GPH, 150 PSI | $765.80 |
| EWC16F1-VCA | Metering Pump, 1.3 GPH, 110 PSI | $821.52 |
| EWC16F1-VCA-H | Metering Pump, 1.3 GPH, 110 PSI | $942.09 |
| EWC16F1-VCM | Metering Pump, 1.3 GPH, 150 PSI | $804.30 |
| EWC16F1-VE | Metering Pump, 1.3 GPH, 150 PSI | $765.80 |
| EWC16F1-VEM | Metering Pump, 1.3 GPH, 150 PSI | $804.30 |
| EWC16F1-VF | Metering Pump, 1.3 GPH, 150 PSI | $765.80 |
| EWC16Y1-FC | Metering Pump, 1.3 GPH, 150 PSI | $1,149.79 |
| EWC16Y1-PC | Metering Pump, 1.3 GPH, 150 PSI | $963.37 |
| EWC16Y1-PCM | Metering Pump, 1.3 GPH, 150 PSI | $1,001.87 |
| EWC16Y1-PE | Metering Pump, 1.3 GPH, 150 PSI | $963.37 |
| EWC16Y1-PEM | Metering Pump, 1.3 GPH, 150 PSI | $1,001.87 |
| EWC16Y1-TC | Metering Pump, 1.3 GPH, 150 PSI | $1,104.20 |
| EWC16Y1-VC | Metering Pump, 1.3 GPH, 150 PSI | $963.37 |
| EWC16Y1-VCA | Metering Pump, 1.3 GPH, 110 PSI | $1,019.09 |
| EWC16Y1-VCA-H | Metering Pump, 1.3 GPH, 110 PSI | $1,139.66 |
| EWC16Y1-VCM | Metering Pump, 1.3 GPH, 150 PSI | $1,001.87 |
| EWC16Y1-VE | Metering Pump, 1.3 GPH, 150 PSI | $963.37 |
| EWC16Y1-VEM | Metering Pump, 1.3 GPH, 150 PSI | $1,001.87 |
| EWC16Y1-VF | Metering Pump, 1.3 GPH, 150 PSI | $963.37 |
| EWC21F1-FC | Metering Pump, 2.3 GPH, 105 PSI | $980.59 |
| EWC21F1-PC | Metering Pump, 2.3 GPH, 105 PSI | $794.17 |
| EWC21F1-PCM | Metering Pump, 2.3 GPH, 105 PSI | $832.67 |
| EWC21F1-PE | Metering Pump, 2.3 GPH, 105 PSI | $794.17 |
| EWC21F1-PEM | Metering Pump, 2.3 GPH, 105 PSI | $832.67 |
| EWC21F1-SH | Metering Pump, 2.3 GPH, 105 PSI | $1,431.45 |
| EWC21F1-TC | Metering Pump, 2.3 GPH, 105 PSI | $935.00 |
| EWC21F1-VC | Metering Pump, 2.3 GPH, 105 PSI | $794.17 |
| EWC21F1-VCA | Metering Pump, 2.3 GPH, 65 PSI | $849.89 |
| EWC21F1-VCA-H | Metering Pump, 2.3 GPH, 65 PSI | $970.46 |
| EWC21F1-VCM | Metering Pump, 2.3 GPH, 105 PSI | $832.67 |
| EWC21F1-VE | Metering Pump, 2.3 GPH, 105 PSI | $794.17 |
| EWC21F1-VEM | Metering Pump, 2.3 GPH, 105 PSI | $832.67 |
| EWC21F1-VF | Metering Pump, 2.3 GPH, 105 PSI | $794.17 |
| EWC21Y1-FC | Metering Pump, 2.3 GPH, 105 PSI | $1,178.16 |
| EWC21Y1-PC | Metering Pump, 2.3 GPH, 105 PSI | $991.74 |
| EWC21Y1-PCM | Metering Pump, 2.3 GPH, 105 PSI | $1,030.24 |
| EWC21Y1-PE | Metering Pump, 2.3 GPH, 105 PSI | $991.74 |
| EWC21Y1-PEM | Metering Pump, 2.3 GPH, 105 PSI | $1,030.24 |
| EWC21Y1-SH | Metering Pump, 2.3 GPH, 105 PSI | $1,629.02 |
| EWC21Y1-TC | Metering Pump, 2.3 GPH, 105 PSI | $1,132.57 |
| EWC21Y1-VC | Metering Pump, 2.3 GPH, 105 PSI | $991.74 |
| EWC21Y1-VCA | Metering Pump, 2.3 GPH, 65 PSI | $1,047.46 |
| EWC21Y1-VCA-H | Metering Pump, 2.3 GPH, 65 PSI | $1,168.03 |
| EWC21Y1-VCM | Metering Pump, 2.3 GPH, 105 PSI | $1,030.24 |
| EWC21Y1-VE | Metering Pump, 2.3 GPH, 105 PSI | $991.74 |
| EWC21Y1-VEM | Metering Pump, 2.3 GPH, 105 PSI | $1,030.24 |
| EWC21Y1-VF | Metering Pump, 2.3 GPH, 105 PSI | $991.74 |
| EWC31F1-FC | Metering Pump, 4.3 GPH, 50 PSI | $1,051.51 |
| EWC31F1-PC | Metering Pump, 4.3 GPH, 50 PSI | $822.54 |
| EWC31F1-PE | Metering Pump, 4.3 GPH, 50 PSI | $822.54 |
| EWC31F1-SH | Metering Pump, 4.3 GPH, 50 PSI | $1,574.31 |
| EWC31F1-TC | Metering Pump, 4.3 GPH, 50 PSI | $1,006.93 |
| EWC31F1-VC | Metering Pump, 4.3 GPH, 50 PSI | $822.54 |
| EWC31F1-VE | Metering Pump, 4.3 GPH, 50 PSI | $822.54 |
| EWC31F1-VF | Metering Pump, 4.3 GPH, 50 PSI | $822.54 |
| EWC31Y1-FC | Metering Pump, 4.3 GPH, 50 PSI | $1,249.08 |
| EWC31Y1-PC | Metering Pump, 4.3 GPH, 50 PSI | $1,020.10 |
| EWC31Y1-PE | Metering Pump, 4.3 GPH, 50 PSI | $1,020.10 |
| EWC31Y1-SH | Metering Pump, 4.3 GPH, 50 PSI | $1,771.88 |
| EWC31Y1-TC | Metering Pump, 4.3 GPH, 50 PSI | $1,204.50 |
| EWC31Y1-VC | Metering Pump, 4.3 GPH, 50 PSI | $1,020.10 |
| EWC31Y1-VE | Metering Pump, 4.3 GPH, 50 PSI | $1,020.10 |
| EWC31Y1-VF | Metering Pump, 4.3 GPH, 50 PSI | $1,020.10 |
| EWC36F1-FC | Metering Pump, 6.3 GPH, 30 PSI | $1,123.45 |
| EWC36F1-PC | Metering Pump, 6.7 GPH, 30 PSI | $850.91 |
| EWC36F1-PE | Metering Pump, 6.7 GPH, 30 PSI | $850.91 |
| EWC36F1-SH | Metering Pump, 6.7 GPH, 30 PSI | $1,683.73 |
| EWC36F1-TC | Metering Pump, 6.3 GPH, 30 PSI | $1,078.87 |
| EWC36F1-VC | Metering Pump, 6.7 GPH, 30 PSI | $850.91 |
| EWC36F1-VE | Metering Pump, 6.7 GPH, 30 PSI | $850.91 |
| EWC36F1-VF | Metering Pump, 6.7 GPH, 30 PSI | $850.91 |
| EWC36Y1-FC | Metering Pump, 6.3 GPH, 30 PSI | $1,321.02 |
| EWC36Y1-PC | Metering Pump, 6.7 GPH, 30 PSI | $1,048.47 |
| EWC36Y1-PE | Metering Pump, 6.7 GPH, 30 PSI | $1,048.47 |
| EWC36Y1-SH | Metering Pump, 6.7 GPH, 30 PSI | $1,881.30 |
| EWC36Y1-TC | Metering Pump, 6.3 GPH, 30 PSI | $1,276.44 |
| EWC36Y1-VC | Metering Pump, 6.7 GPH, 30 PSI | $1,048.47 |
| EWC36Y1-VE | Metering Pump, 6.7 GPH, 30 PSI | $1,048.47 |
| EWC36Y1-VF | Metering Pump, 6.7 GPH, 30 PSI | $1,048.47 |
Shipping
Promag Enviro includes free shipping on chemical metering pumps throughout Canada, including Vancouver, British Columbia(BC), Edmonton & Calgary, Alberta(AB), Regina, Saskatchewan(SK), Winnipeg, Manitoba(MB), Ottawa & Toronto, Ontario(ON), Quebec & Montreal, Quebec(QC), St. Johns, Newfoundland(NL), Charlottetown, Prince Edward Island(PE), Halifax, Nova Scotia(NS), Fredricton, New Brunswick(NB), Whitehorse, Yukon(YT), & Yellowknife, Northwest Territories(NT), Iqaluit, Nunavut(NU) and beyond.