WEL PST 100 CNP Piston Pump
The WEL PST pump is a twin cylinder, quadruple acting, crankshaft driven piston pump. Water, air or a mixture of both are primed and discharged four times per revolution. Two crankshaft driven pistons are arranged at an angle of 90 degrees to enable four piston strokes for each revolution.
The crank timing produces a moderate pulsating action in the dewatering line that prevents clogging of the wellpoint strainers and achieves priming from greater depths. Even with suction heights of several meters the pump rapidly evacuates the air from the suction pipe and starts to pump.
KEY FEATURES
- Positive Displacement pump - Positive displacement pump with constant flow and capable of simultaneously drawing air and water
- Rapid “dry” priming - Up to a height of 7,5 m (24.6 ft) without the need of a vacuum priming pump
- High resistance - Can run dry indefinitely without risk of damage or excessive wear of parts
- Enviroment friendly Low power consumption and low noise unit
- Easy maintenance - High accessibility for easy inspection and maintenance which require no special skills
- Long life - Economical and longer carefree service life reducing overall operating costs
- Great autonomy - Up to 170 h with fuel tank of 200 L (52.8 USG)
PUMP PERFORMANCE CURVE
| Pump Specification Data | |
|---|---|
| Qmax | 20L/S - 75m3/h |
| Hmax | 20m |
| Q Max Eff. | 20L/S - 75m3/h |
| Eff. Max | 93% |
| Suction Port | Flanged - DIN 125 |
| Delivery Port | Flanged - DIN 125 |
| Pump Materials | |
|---|---|
| Casing | EN-GJL-250 Cast Iron |
| Helical Gear Wheels | GJS-400 Ductile Iron |
| Shaft | Steel |
| Piston Rod | AISI 431 Stainless Steel |
| Piston | AISI 431 Stainless Steel |
| Piston Cups | Leather |
| Cylinders | AISI 431 Stainless Steel |
| Valves | Brass |
| Valves Discs | NBR Rubber |
| Valves Guides | AISI 431 Stainless Steel |
| Pump Engine Specifications | |
|---|---|
| Make | Hatz |
| Model | 1D90 |
| Type | Diesel Direct Injection, Aspirated, Four Strokes |
| Displacement | 997cm3 |
| No. Cylinders | 2 |
| Cooling | Air |
| RPM Type | Variable |
| Standard Speed | 2000RPM |
| EU Emissions | 2002/88/CE Stage V |
| US Emissions | EPA Tier 4F |
| Starting | Electric |
| Starting Voltage | 12V |
| Oil Change Interval | 250H |
| Market | Worldwide |
| Speed (RPM) | 1500 |
|---|---|
| Consumption (L/H) | 1.2 |
| Power (kW) | 6.5 |
| Power (HP) | 8.7 |