White Knight AP40EXT3 Pumps

Reliable PTFE and PFA Pumps for High-Purity Chemical Recirculation

White Knight AP40EXT3應用於再循環的泵


AP40EXT3 pumps are completely metal-free with PTFE and PFA fluid paths. These high-purity pumps distribute chemicals at temperatures up to 100°C (212°F), offer air supply pressures up to 4 Bar (60 psi), and are capable of up to 14 lpm flow rates.

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
  • 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
White Knight 高純度度的
4 公斤(60 psi) 氣壓
White Knight 泵通過控制板上的穿梭閥進行控制
White Knight 3年的保固
White Knight 高純度度的
4 公斤(60 psi) 氣壓
White Knight 泵通過控制板上的穿梭閥進行控制
White Knight 3年的保固


APEXT3 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




Max Flow Rate*
14 lpm (3 gpm)
Size of Air Connection
1/4, 3/8 or 1/8 in FNPT
Displacement Per Cycle*
0.189 liters (0.05 gal)
Cycles Per Minute*
≤ 80
4.6 kg (10.2 lb)
Suction Lift*
1 m (3 ft)
Sound Pressure**
70.99 dB(a)
72.53 dB(a)
Sound Power**
59.11 dB(a)
60.74 dB(a)
Max Pressure
4 Bar (60 psi)
Max Temperature
100°C (212°F)
Fluid Path Materials
Non-Fluid Path Materials
PTFE / PFA / PP / ceramic
Stroke Detection Options
Fiber optic with or withough 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 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.