
Overview
X Series pumps are metal-free with PTFE and PFA fluid paths. They distribute chemicals at temperatures up to 100°C (212°F) and allow for air supply pressures up to 4 Bar (60 psi). The pumps perform safely and reliably running continuously throughout their one-year warranty. The pumps are available in two models, X50 and X100, which are capable of maximum flow rates of 20 and 55 lpm, respectively.
While White Knight continues to offer and support X Series pumps, we recommend users consider PSA Series or PSR Series pumps, which provide better performance, increased flow rates, higher pressure capabilities, improved reliability, extended pump life and warranty periods, as well as shorter lead times. See comparisons below.
Features & Benefits
- Metal-free PTFE and PFA liquid path
- 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 pulsation and vibration
- Various liquid connection options
- Safe, leak-free operation due to no-metal design
- Polypropylene heads, 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
X 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.
Need fiber optics or proximity sensors?
PFA Series pumps are controlled with fiber optic sensors.
PXA Series pumps are controlled with proximity switches.
Supply Air
Exhaust Air
Ambient Air
Liquid Suction
Liquid Discharge
Performance & Dimensions
X50 Performance
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X100 Performance
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PSA030 Performance
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PSA060 Performance
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PSA140 Performance
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PSR025 Performance
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PSR050 Performance
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Specifications
Model | X50 | X100 | |||||
---|---|---|---|---|---|---|---|
Max Flow Rate* | 20 lpm 5 gpm | 55 lpm 14 gpm | 24.7 lpm 6.53 gpm | 62.3 lpm 16.46 gpm | 123 lpm 32.5 gpm | 21.9 lpm 5.79 gpm | 57.5 lpm 15.19 gpm |
Size of Air Connection | 1/8 or 1/4 in FNPT | 1/4 or 3/8 in FNPT | 1/4 in FNPT | 1/4 in FNPT | 3/8 in FNPT | 1/4 in FNPT | 1/4 in FNPT |
Displacement Per Cycle* | 0.076 liters 0.02 gal | 0.189 liters 0.05 gal | 0.074 liters 0.019 gal | 0.178 liters 0.047 gal | 0.50 liters 0.132 gal | 0.076 liters 0.020 gal | 0.189 liters 0.050 gal |
Cycles Per Minute* | ≤ 270 | ≤ 300 | ≤ 333 | ≤ 348 | ≤ 273 | ≤ 300 | ≤ 258 |
Weight | 2.6 kg 5.7 lb | 5.1 kg 11.1 lb | 3.3 kg 7.3 lb | 4.7 kg 10.4 lb | 16.6 kg 36.6 lb | 2.5 kg 5.5 lb | 5.0 kg 11.0 lb |
Suction Lift* | 1 m (3 ft) | 1 m (3 ft) | 3 m (10 ft) | 3 m (10 ft) | 3 m (10 ft) | 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) | 74.00 dB(a) 79.90 dB(a) | 73.11 dB(a) 82.50 dB(a) | 81.98 dB(a) 91.60 dB(a) | 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) | 63.01 dB(a) 69.90 dB(a) | 64.29 dB(a) 74.11 dB(a) | 76.37 dB(a) 83.16 dB(a) | 58.52 dB(a) 65.75 dB(a) | 64.31 dB(a) 71.98 dB(a) |
Max Pressure | 4 Bar (60 psi) | 7 Bar (100 psi) | 4 Bar (60 psi) | ||||
Max Temperature | 100°C (212°F) | 100°C (212°F) | 100°C (212°F) | ||||
Fluid Path Materials | PTFE / PFA | PTFE / PFA | PTFE / PFA | ||||
Non-Fluid Path Materials | PTFE / PFA / PP / ceramic | PTFE / PFA / PP / ceramic | PTFE / PFA / PP / ceramic | ||||
Stroke Detection Options | Fiber optic with or withough sensor, or solid state pressure switch | Fiber optic with or withough sensor, or solid state pressure switch | Fiber optic with or withough sensor, or solid state pressure switch | ||||
Leak Detection Options | Fiber optic with or without sensor, or conductivity | Fiber optic with or without sensor, or conductivity | Fiber optic with or without sensor, or conductivity | ||||
Electronic Control | Available | Available | Available | ||||
Warranty | 1 year | 2 years | 1 year | ||||
Model | X50 | X100 |
*May vary depending on configuration. Suction lift diminishes over time. Recommended installation level less than 3 ft above source.
**dB Level at 60 psi 50CPM (top) and 60 psi maximum CPM (bottom). Sound Levels measured in accordance with ISO9614-2:1997.
***Dry-run capable PSASD030 and PSASD060 pumps require flooded suction and may have a reduced warranty unless prior arrangements are made with White Knight. Contact White Knight for details.