White Knight AP Series Pumps

Reliable PTFE and PFA Pumps for High-Purity Chemical Recirculation

AP Series pumps are discontinued. Please upgrade to PSA Series pumps for better performance, improved reliability, shorter lead times, extended pump life, and increased warranty periods. PSR Series pumps may also be suitable replacements. See pump comparison information below.

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 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.

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

Temperature Limits

AP & PSR Series Temperatures

PSA Series Temperatures

Pump Comparisons

Performance

AP50 Performance

*Air Usage data intentionally removed due to changes in data collection method

PSA030 Performance

Dimensions

AP50 Dimensions

PSA030 Dimensions

Specifications

Model
AP50
Warranty
1 Year
2 Years
Max Flow Rate*
20 lpm
5 gpm
24.7 lpm
6.53 gpm
Size of Air Connection
1/4, 3/8 or 1/8 in FNPT
1/4 in FNPT
Displacement Per Cycle*
0.057 liters
0.02 gal
0.074 liters
0.019 gal
Cycles Per Minute*
≤ 270
≤ 333
Weight
2.5 kg
5.5 lb
3.3 kg
7.28 lb
Suction Lift*
1 m (3 ft)
3 m (10 ft)
Sound Pressure**
69.38 dB(a)
76.55 dB(a)
74.00 dB(a)
79.90 dB(a)
Sound Power**
58.52 dB(a)
65.75 dB(a)
63.01 dB(a)
69.90 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 without sensor, or solid state pressure switch
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Model
AP50

*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.
Contact White Knight for details.

Performance

AP50 Performance

*Air Usage data intentionally removed due to changes in data collection method

PSR025 Performance

Dimensions

AP50 Dimensions

PSR025 Dimensions

Specifications

Model
AP50
Warranty
1 Year
1 Year
Max Flow Rate*
20 lpm
5 gpm
21.9 lpm
5.79 gpm
Size of Air Connection
1/4, 3/8 or 1/8 in FNPT
1/4-in FNPT
Displacement Per Cycle*
0.057 liters
0.02 gal
0.074 liters
0.019 gal
Cycles Per Minute*
≤ 270
≤ 300
Weight
2.5 kg
5.5 lb
2.5 kg
5.5 lb
Suction Lift*
1 m (3 ft)
1 m (3 ft)
Sound Pressure**
69.38 dB(a)
76.55 dB(a)
69.38 dB(a)
76.55 dB(a)
Sound Power**
58.52 dB(a)
65.75 dB(a)
58.52 dB(a)
65.75 dB(a)
Max Pressure
4 Bar (60 psi)
4 Bar (60 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 without sensor, or solid state pressure switch
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Model
AP50

*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.
Contact White Knight for details.

Performance

AP100 Performance

PSA060 Performance

Dimensions

AP100 Dimensions

PSA060 Dimensions

Specifications

Model
AP100
Warranty
1 Year
2 Years
Max Flow Rate*
55 lpm
14 gpm
62.3 lpm
16.46 gpm
Size of Air Connection
1/4 or 3/8 in FNPT
1/4 in FNPT
Displacement Per Cycle*
0.189 liters
0.05 gal
0.178 liters
0.047 gal
Cycles Per Minute*
≤ 300
≤ 348
Weight
4.9 kg
10.8 lb
4.7 kg
10.36 lb
Suction Lift*
1 m (3 ft)
3 m (10 ft)
Sound Pressure**
72.38 dB(a)
79.12 dB(a)
73.11 dB(a)
82.50 dB(a)
Sound Power**
64.31 dB(a)
71.98 dB(a)
64.29 dB(a)
74.11 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 without sensor, or solid state pressure switch
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Model
AP100

*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.
Contact White Knight for details.

Performance

AP100 Performance

PSR050 Performance

Dimensions

AP100 Dimensions

PSR050 Dimensions

Specifications

Model
AP100
Warranty
1 Year
1 Year
Max Flow Rate*
55 lpm
14 gpm
57.5 lpm
15.19 gpm
Size of Air Connection
1/4 or 3/8 in FNPT
1/4-in FNPT
Displacement Per Cycle*
0.189 liters
0.05 gal
0.178 liters
0.047 gal
Cycles Per Minute*
≤ 300
≤ 258
Weight
4.9 kg
10.8 lb
5.0 kg
11.0 lb
Suction Lift*
1 m (3 ft)
1 m (3 ft)
Sound Pressure**
72.38 dB(a)
79.12 dB(a)
72.38 dB(a)
79.12 dB(a)
Sound Power**
64.31 dB(a)
71.98 dB(a)
64.31 dB(a)
71.98 dB(a)
Max Pressure
4 Bar (60 psi)
4 Bar (60 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 without sensor, or solid state pressure switch
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Model
AP100

*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.
Contact White Knight for details.

Performance

AP200 Performance

PSA060 Performance

Dimensions

AP200 Dimensions

PSA060 Dimensions

Specifications

Model
AP200
Warranty
1 Year
2 Years
Max Flow Rate*
68 lpm
17 gpm
62.3 lpm
16.46 gpm
Size of Air Connection
1/2 or 3/8 in FNPT
1/4 in FNPT
Displacement Per Cycle*
0.454 liters
0.12 gal
0.178 liters
0.047 gal
Cycles Per Minute*
≤ 150
≤ 348
Weight
11.02 kg
24.28 lb
4.7 kg
10.36 lb
Suction Lift*
1 m (3 ft)
3 m (10 ft)
Sound Pressure**
74.80 dB(a)
82.31 dB(a)
73.11 dB(a)
82.50 dB(a)
Sound Power**
69.24 dB(a)
77.17 dB(a)
64.29 dB(a)
74.11 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 without sensor, or solid state pressure switch
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Model
AP200

*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.
Contact White Knight for details.

Performance

AP300 Performance

PSA140 Performance

Dimensions

AP300 Dimensions

PSA140 Dimensions

Specifications

Model
AP200
Warranty
1 Year
2 Years
Max Flow Rate*
68 lpm
17 gpm
123 lpm
32.5 gpm
Size of Air Connection
1/2 or 3/8 in FNPT
3/8 in FNPT
Displacement Per Cycle*
0.454 liters
0.12 gal
0.500 liters
0.132 gal
Cycles Per Minute*
≤ 150
≤ 273
Weight
11.02 kg
24.28 lb
16.60 kg
36.60 lb
Suction Lift*
1 m (3 ft)
3 m (10 ft)
Sound Pressure**
74.80 dB(a)
82.31 dB(a)
81.98 dB(a)
91.60 dB(a)
Sound Power**
69.24 dB(a)
77.17 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 without sensor, or solid state pressure switch
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Model
AP200

*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.
Contact White Knight for details.

Performance

AP300 Performance

PSA140 Performance

Dimensions

AP300 Dimensions

PSA140 Dimensions

Specifications

Model
AP300
Warranty
1 Year
2 Years
Max Flow Rate*
115 lpm
30 gpm
123 lpm
32.5 gpm
Size of Air Connection
1/2 or 3/8 in FNPT
3/8 in FNPT
Displacement Per Cycle*
0.719 liters
0.19 gal
0.500 liters
0.132 gal
Cycles Per Minute*
≤ 160
≤ 273
Weight
12.80 kg
28.2 lb
16.60 kg
36.60 lb
Suction Lift*
1 m (3 ft)
3 m (10 ft)
Sound Pressure**
74.80 dB(a)
82.31 dB(a)
81.98 dB(a)
91.60 dB(a)
Sound Power**
69.24 dB(a)
77.17 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 without sensor, or solid state pressure switch
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Model
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.
Contact White Knight for details.