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Walchem
Walchem EJ Series Metering Pumps
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Walchem EJ: compact solenoid; to 3.2 GPH / 175 PSI; 1–360 spm; 100–240 VAC. RFQ.
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RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Type
Walchem EJ Series compact solenoid diaphragm metering pump
Capacity
Outputs to 3.2 GPH (12.0 LPH); models B09 to B31-L
Pressure
Up to 175 PSI (1.2 MPa) on B09; lower max pressure on higher-flow models
Stroke Rate
1 to 360 strokes per minute
Power
Universal 100-240 VAC; about 15 W; input current about 0.8 A
Control
Digital external input and stop/start inputs for proportional or on/off control
Fits compact solenoid metering where you need a Walchem EJ Series pump. Solenoid diaphragm family to about 3.2 GPH (12.0 LPH) with pressures to 175 PSI on B09, stroke rate 1–360 spm, universal 100–240 VAC (~15 W) and digital external/stop inputs for proportional or on/off control.
Key advantages
- Capacity — To about 3.2 GPH (12.0 LPH)
- Pressure — Up to 175 PSI (B09)
- Stroke rate — 1–360 spm
- Power — Universal 100–240 VAC; ~15 W
- Control — Digital external + stop/start
Typical applications
- Compact chemical feed.
- Cooling tower dosing.
- OEM small metering.
Selection guide
- Model B09–B31-L
- Control inputs
- Wetted materials
Common mistakes
- Pressure vs flow tradeoff.
- Wrong tubing size.
- Ambient overload.
When to RFQ / what to tell us
- Model/materials.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 46857 |
| Brand | Walchem |
| Model | EJ Series Metering Pumps |
| Product type | Metering Pump |
| Type | Walchem EJ Series compact solenoid diaphragm metering pump |
| Capacity | Outputs to 3.2 GPH (12.0 LPH); models B09 to B31-L |
| Pressure | Up to 175 PSI (1.2 MPa) on B09; lower max pressure on higher-flow models |
| Stroke rate | 1 to 360 strokes per minute |
| Power | Universal 100-240 VAC; about 15 W; input current about 0.8 A |
| Control | Digital external input and stop/start inputs for proportional or on/off control |
Documents
FAQ
Q: Max GPH? A: About 3.2 GPH.
Q: Power? A: 100–240 VAC; ~15 W.
Q: What should I send for a quote? A: Model/materials, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Type | Walchem EJ Series compact solenoid diaphragm metering pump |
| Capacity | Outputs to 3.2 GPH (12.0 LPH); models B09 to B31-L |
| Pressure | Up to 175 PSI (1.2 MPa) on B09; lower max pressure on higher-flow models |
| Stroke Rate | 1 to 360 strokes per minute |
| Power | Universal 100-240 VAC; about 15 W; input current about 0.8 A |
| Control | Digital external input and stop/start inputs for proportional or on/off control |
| Enclosure | IP65-equivalent protected drive with clear cover over display/keypad |
| Ambient Liquid Temp | 0 to 40 C (32 to 104 F) ambient and liquid |
| Shipping Weight | About 8.0 lb (3.6 kg) |
| Document | Walchem EJ Series metering pump brochure 180606 (walchem.com) |