White Knight AP Series Pumps

Reliable PTFE/PFA Pumps for High-Purity Chemical Recirculation

Overview

AP Series pumps are completely metal-free. They have PTFE/PFA fluid paths and distribute chemicals at temperatures up to 100°C (212°F). They offer air supply pressures up to 4 Bar (60 psi). The pumps perform safely and reliably running continuously throughout their warranty periods. The pumps are available in five models, AP40EXT3, AP50, AP100, AP200 and AP300, which are capable of maximum flow rates of 14, 20, 55, 68 and 115 lpm, respectively.

While White Knight continues to offer and support AP Series pumps, we recommend users consider PSA 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/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 Ultra-Pure Teflon PTFE/PFA Pump Materials
Chemical Recirculation 4 Bar (60 psi) Pressures
Pump Temperatures to 100 Degrees Celsius (212 Degrees Fahrenheit)
White Knight Pneumatic Shuttle Valve Shift Method
White Knight One-Year Warranty

Operation

AP 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.

Pneumatic Shuttle-Driven Pump Operations Diagram

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

Temperature Limits

Performance & Dimensions

AP40EXT3 Performance

White Knight AP40EXT3 Pump Performance Curves

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AP50 Performance

White Knight AP50 Pump Performance Curves

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AP100 Performance

White Knight AP100 Pump Performance Curves

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AP200 Performance

White Knight AP200 Pump Performance Curves

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AP300 Performance

White Knight AP300 Pump Performance Curves

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PSA030 Performance

White Knight PSA030 Pump Performance Curves

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PSA060 Performance

White Knight PSA060 Pump Performance Curves

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PSA140 Performance

White Knight PSA140 Pump Performance Curves

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Compare Maximum Flowrates

AP40 up to 15 LPM (3 GPM)
AP50 up to 20 LPM (5 GPM)
PSA030 up to 30 LPM (7 GPM)
AP100 up to 55 LPM (14 GPM)
PSA060 up to 60 LPM (15 GPM)
AP200 up to 68 LPM (17 GPM)
AP300 up to 115 LPM (30 GPM)
PSA140 up to 140 LPM (35 GPM)
PSA Series Pumps

Specifications

Model
AP40EXT3
AP50
AP100
AP200
AP300
Max Flow Rate*
14 lpm
3 gpm
20 lpm
5 gpm
55 lpm
14 gpm
68 lpm
17 gpm
115 lpm
30 gpm
24.7 lpm
6.53 gpm
62.3 lpm
16.46 gpm
123 lpm
32.5 gpm
Size of Air Connection
1/4, 3/8 or 1/8 in FNPT
1/4 or 3/8 in FNPT
1/2 or 3/8 in FNPT
1/4 in FNPT
1/4 in FNPT
3/8 in FNPT
Displacement Per Cycle*
0.189 liters
0.05 gal
0.057 liters
0.02 gal
0.189 liters
0.05 gal
0.454 liters
0.12 gal
0.719 liters
0.19 gal
0.074 liters
0.019 gal
0.178 liters
0.047 gal
0.500 liters
0.132 gal
Cycles Per Minute*
≤ 80
≤ 270
≤ 300
≤ 150
≤ 160
≤ 333
≤ 348
≤ 273
Weight
4.6 kg
10.2 lb
2.5 kg
5.5 lb
4.9 kg
10.8 lb
11.02 kg
24.28 lb
12.80 kg
28.2 lb
3.3 kg
7.28 lb
4.7 kg
10.36 lb
16.60 kg
36.60 lb
Suction Lift*
1 m (3 ft)
1 m (3 ft)
1 m (3 ft)
1 m (3 ft)
1 m (3 ft)
3 m (10 ft)
3 m (10 ft)
3 m (10 ft)
Sound Pressure**
70.99 dB(a)
72.53 dB(a)
69.38 dB(a)
76.55 dB(a)
72.38 dB(a)
79.12 dB(a)
74.80 dB(a)
82.31 dB(a)
74.80 dB(a)
82.31 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)
Sound Power**
59.11 dB(a)
60.74 dB(a)
58.52 dB(a)
65.75 dB(a)
64.31 dB(a)
71.98 dB(a)
69.24 dB(a)
77.17 dB(a)
69.24 dB(a)
77.17 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)
Max Pressure
4 Bar (60 psi)
7 Bar (100 psi)
Max Temperature
100°C (212°F)
100°C (212°F)
Fluid Path Materials
PTFE / PFA
PTFE / PFA
Non-Fluid Path Materials
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
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Available
Model
AP40EXT3
AP50
AP100
AP200
AP300

*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.