White Knight AP Series Pumps

Reliable Teflon® PTFE and PFA Pumps for High-Purity Chemical Recirculation

AP300 pumps were discontinued Dec 31, 2015. Please upgrade to PSA140 pumps for better performance, improved reliability, extended pump life and shorter lead times. AP300 pumps will be supported for five years after discontinuation.

AP40EXT3 pumps are not legacy pumps. AP40EXT3 has no direct replacement for upgrade. For more information about AP40EXT3, please visit the AP40EXT3 pump webpage.

Overview

AP Series pumps are completely metal-free. They have Teflon® PTFE and 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 four models, AP50, AP100, AP200 and AP300, which are capable of maximum flow rates of 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 Teflon® 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 Ultra-Pure Teflon PTFE and PFA Pump Materials
Chemical Recirculation 4 Bar (60 psi) Pressures
Fluid 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

White Knight AP Series Pumps Temperature Limitations
White Knight PSA Series Pumps Temperature Limitations

Performance & Dimensions

AP50 Performance

White Knight AP50 Pump Performance Curves

Click image to enlarge.

AP50 Dimensions

White Knight AP50 Pump Dimensions

AP100 Performance

White Knight AP100 Pump Performance Curves

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AP100 Dimensions

White Knight AP100 Pump Dimensions

AP200 Performance

White Knight AP200 Pump Performance Curves

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AP200 Dimensions

White Knight AP100 Pump Dimensions

AP300 Performance

White Knight AP300 Pump Performance Curves

Click image to enlarge.

AP300 Dimensions

White Knight AP300 Pump Dimensions

PSA030 Performance

White Knight PSA030 Pump Performance Curves

Click image to enlarge.

PSA030 Dimensions

White Knight PSA030 Pump Dimensions

PSA060 Performance

White Knight PSA060 Pump Performance Curves

Click image to enlarge.

PSA060 Dimensions

White Knight PSA060 Pump Dimensions

PSA140 Performance

White Knight PSA140 Pump Performance Curves

Click image to enlarge.

PSA140 Dimensions

White Knight PSA140 Pump Dimensions

Specifications

Model
AP50
AP100
AP200
AP300
Max Flow Rate*
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*
0.057 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*
≤ 270
≤ 300
≤ 150
≤ 160
≤ 333
≤ 348
≤ 273
Weight
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)
3 m (10 ft)
3 m (10 ft)
3 m (10 ft)
Sound Pressure**
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**
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
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. <a href=”https://wkfluidhandling.com/contact/”>Contact</a> White Knight for details.