Overview
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PSR Series pumps are the ideal solution for ambient temperature, ultra-pure recirculation applications. These PTFE and PFA pumps are completely metal free and operate with a unique shuttle valve that eliminates the need for complicated detents and manual resets. They perform safely and reliably running continuously throughout their one-year warranty. They offer air supply pressures up to 4 Bar (60 psi) and operate in thermal cycling applications with fluid temperatures up to 100°C (212°F).
The pumps are available in PSR025 and PSR050, which are capable of maximum flow rates of 25 and 50 lpm, respectively.
Features & Benefits
- 100% Metal-Free
- Process-safe PTFE and PFA flow paths
- Leak-proof, machined design
- No elastomer O-rings, no leaks, never retorque
- No lubrication in shift mechanisms
- No electric motors, which generate heat
- Pneumatic Logic™ minimizes liquid pulsation and pump vibration
- Various liquid connection styles or sizes
- Safe, leak-free operation due to no-metal design
- Polypropylene heads and ceramic in air shuttle valve
- Minimal parts for durable design
- Class 100 cleanroom assembly, testing, and packaging
- Easy to install and service
- Proven reliable to 200 million+ cycles
- No preventative maintenance during one-year warranty
Operation
PSR Series pumps feature White Knight’s Pneumatic Logic™, a detent-free shuttle valve design that improves performance and reliability by minimizing vibration, pulsation and wear.
Supply Air
Exhaust Air
Ambient Air
Liquid Suction
Liquid Discharge
Temperature Limits
Pump Temperature Options:
Performance & Dimensions
PSR025 Performance Curves
*Graph is for reference only. Performance was measured utilizing 1/2 in (3/8 in ID) air line and 1-1/4 in (1-1/8 in ID) liquid lines with 1 ft flooded suction. Performance may vary in your system.
PSR050 Performance Curves
*Graph is for reference only. Performance was measured utilizing 1/2 in (3/8 in ID) air line and 1-1/4 in (1-1/8 in ID) liquid lines with 1 ft flooded suction. Performance may vary in your system.
Specifications
Model |
PSR025 |
PSR050 |
|---|---|---|
| Flow Rate* | 21.9 lpm 5.79 gpm |
57.5 lpm 15.19 gpm |
| Size of Air Connection | 1/4-in FNPT |
1/4-in FNPT |
| Displacement Per Cycle* | 0.074 liters 0.019 gal |
0.178 liters 0.047 gal |
| Cycles Per Minute* | 300 max |
258 max |
| Weight | 2.5 kg (5.5 lb) |
5.0 kg (11.0 lb) |
| Suction Lift* | 1 m (3 ft) |
1 m (3 ft) |
| Sound Pressure** | 69.38 dB(a) 76.55 dB(a) |
72.38 dB(a) 79.12 dB(a) |
| Sound Power** | 58.52 dB(a) 65.75 dB(a) |
64.31 dB(a) 71.98 dB(a) |
| Max Temperature | 100°C (212°F) |
|
| Max Pressure | 4 Bar (60 psi) |
|
| Fluid Path Materials | PTFE, PFA |
|
| Non-Fluid Path Materials | PTFE, PFA, PP, Ceramic |
|
| Stroke Detection Options | Fiber optic with or without sensor, or solid state pressure switch |
|
| Leak Detection Options | Fiber optic with or without sensor, or conductivity |
Electronic Control | Available |
Model |
PSR025 |
PSR050 |
*May vary by configuration or system. Suction lift diminishes over time. Recommended installation level less than 3 ft above source.
**dB Level at 60 psi 50 CPM (top) and 60 psi maximum CPM (bottom). Sound Levels measured in accordance with ISO9614-2:1997.
