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Walchem
Walchem EHE Series Metering Pumps
Quote on request
No online payment · add lines to RFQ BOM
Walchem EHE: to 20 GPH / 150 PSI; 360 spm; 1800:1 turndown; pulse/4–20 mA. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Max Output
Up to 20 GPH (75 L/h)
Max Pressure
150 PSI (10 bar)
Stroke Rate
360 strokes per minute
Turndown Ratio
1800:1
Control
Manual; pulse multiply/divide 1–999; programmable 4–20 mA speed band
Electrical
50/60 Hz single phase; 48 W avg; 115 VAC 1.8 A / 230 VAC 0.8 A
Fits chemical metering where you need a Walchem EHE Series pump. Metering pump family to about 20 GPH (75 L/h) and 150 PSI (10 bar) with 360 strokes per minute, 1800:1 turndown, and control via manual, pulse multiply/divide 1–999 or programmable 4–20 mA speed band on 115/230 VAC.
Key advantages
- Output — Up to 20 GPH (75 L/h)
- Pressure — Up to 150 PSI (10 bar)
- Stroke rate — 360 strokes/min
- Turndown — 1800:1
- Control — Manual / pulse 1–999 / 4–20 mA
Typical applications
- Water treatment chemical feed.
- Cooling tower inhibitors.
- Process metering skids.
Selection guide
- GPH / PSI
- Control mode
- Wetted materials
Common mistakes
- Undersized pressure.
- Wrong control mode.
- Ambient outside 32–122 °F.
When to RFQ / what to tell us
- GPH/PSI/control/materials.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 46809 |
| Brand | Walchem |
| Model | EHE Series |
| Product type | Metering Pump |
| Max output | Up to 20 GPH (75 L/h) |
| Max pressure | 150 PSI (10 bar) |
| Stroke rate | 360 strokes per minute |
| Turndown ratio | 1800:1 |
| Control | Manual; pulse multiply/divide 1–999; programmable 4–20 mA speed band |
| Electrical | 50/60 Hz single phase; 48 W avg; 115 VAC 1.8 A / 230 VAC 0.8 A |
| Ambient | 32–122°F (0–50°C); 30–90% RH non-condensing |
Documents
FAQ
Q: Max output? A: About 20 GPH.
Q: Turndown? A: 1800:1.
Q: What should I send for a quote? A: GPH/PSI/control/materials, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Max Output | Up to 20 GPH (75 L/h) |
| Max Pressure | 150 PSI (10 bar) |
| Stroke Rate | 360 strokes per minute |
| Turndown Ratio | 1800:1 |
| Control | Manual; pulse multiply/divide 1–999; programmable 4–20 mA speed band |
| Electrical | 50/60 Hz single phase; 48 W avg; 115 VAC 1.8 A / 230 VAC 0.8 A |
| Ambient | 32–122°F (0–50°C); 30–90% RH non-condensing |
| Liquid Temperature | PVC liquid ends 32–104°F; PP/PVDF 32–140°F |
| Certifications | NSF/ANSI/CAN 61 (WQA); UL/CSA (Intertek) |
| Shipping Weight | ~23 lbs (10.5 kg) |
| Design | Dual bearing armature support; dual check valves; high compression ratio for off-gassing chemicals |