PSH Series White Knight Pumps

PTFE/PFA Pumps Capable of 145°C (293°F) with On-Board Shuttle Valve


click+drag to rotate

PSH Series pumps are the ideal solution for high temperature, ultra-pure recirculation and delivery applications. These PTFE/PFA pumps are completely metal free and operate with the unique White Knight shuttle valve, which eliminates the need for complicated detents and manual resets. They perform safely and reliably running continuously throughout their two-year warranty. They offer air supply pressures up to 5.5 Bar (80 psi) and operate in thermal cycling applications with fluid temperatures up to 145°C (293°F).

The pumps are available in three models, PSH030, PSH060 and PSH140, which are capable of maximum flow rates of 30, 60 and 140 lpm, respectively.

Features & Benefits

  • 100% Metal-Free
  • Process-safe PTFE/PFA flow paths
  • Leak-proof, machined design
  • PTFE heads with Buttress-Threads
  • 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 options
  • Safe, leak-free operation due to no-metal design
  • Ceramic in air shuttle valve
  • Minimal parts for durable design
  • Class 100 cleanroom assembly, testing, and packaging
  • Easy to install and service
  • No preventative maintenance during two-year warranty
  • Robust bellows offer supply pressure of 5.5 Bar (80 psi)
  • Dead-head capable operation
White Knight Ultra-Pure Teflon PTFE/PFA Pump Materials
Chemical Recirculation and Delivery 5.5 Bar (80 psi) Pressures
Pump Temperatures to 145 Celsius (293 Fahrenheit)
White Knight Pneumatic Shuttle Valve Shift Method
White Knight Two-Year Warranty
CE Certification Mark


PSH 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?

PFH Series pumps are controlled by shuttle valves. PXH Series pumps are controlled with proximity sensors.

Supply Air

Exhaust Air

Ambient Air

Liquid Suction

Liquid Discharge

Temperature Limits

Need Higher Temperatures?

PSU Series pumps are capable of temperatures up to 210°C (410°F).

Performance Curves

PSH030 Performance Curves

PSHSD030 Performance Curves

PSH060 Performance Curves

PSHSD060 Performance Curves

PSH140 Performance Curves


Request QuoteLocate Distributors


PSH030 Dimensions

Dimensions: [mm] in

Download PSH030 Dimensions (PDF)

PSH060 Dimensions

Dimensions: [mm] in

Download PSH060 Dimensions (PDF)

PSH140 Dimensions

Dimensions: [mm] in

Download PSH140 Dimensions (PDF)


Max Flow Rate*
22.8 lpm
6.02 gpm
58.3 lpm
15.40 gpm
118 lpm
31.3 gpm
Size of Air Connection
1/4-in FNPT
1/4-in FNPT
3/8-in FNPT
Displacement Per Cycle*
0.074 liters
0.019 gal
0.178 liters
0.047 gal
0.500 liters
0.132 gal
Cycles Per Minute*
333 max
348 max
254 max
4.6 kg (10.1 lb)
7.3 kg (16.1 lb)
18.5 kg (40.9 lb)
Suction Lift*
1 m (3 ft)
1 m (3 ft)
1 m (3 ft)
Sound Pressure**
74.00 dB(a)
79.90 dB(a)
73.11 dB(a)
82.50 dB(a)
71.73 dB(a)
75.42 dB(a)
Sound Power**
63.01 dB(a)
69.90 dB(a)
64.29 dB(a)
74.11 dB(a)
70.46 dB(a)
75.27 dB(a)
Max Temperature
145°C (293°F)
Max Pressure
5.5 Bar (80 psi)
Fluid Path Materials
Non-Fluid Path Materials
PTFE / PFA / 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

*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 PSHSD030 and PSHSD060 pumps require flooded suction and may have a reduced warranty unless prior arrangements are made with White Knight. Contact White Knight for details.