PXU Series White Knight Pumps

PTFE/PFA Pumps Capable of 210°C (410°F) with Proximity Switch Controls

Overview

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PXU Series pumps are the ideal solution for ultra-high temperature and high-purity recirculation or delivery applications where proximity sensors are required for optimum systems control. These PTFE/PFA pumps are completely metal free and operate with proximity sensors sensors and an external solenoid valve. They perform safely and reliably running continuously throughout their two-year warranty. They offer air supply pressures up to 7 Bar (100 psi) and operate in thermal cycling applications with fluid temperatures up to 210°C (410°F).

The pumps are available in three models, PXU030, PXU060 and PXU140, which are capable of maximum flow rates of 30, 60 and 140 lpm, respectively.

Features & Benefits

  • Process-safe PTFE/PFA flow paths
  • Leak-proof, machined design
  • PTFE heads with Synchro-Thread™
  • No elastomer O-rings, no leaks, never retorque
  • No lubrication in shift mechanisms
  • No electric motors, which generate heat
  • Various liquid connection options
  • Safe, leak-free operation due to no-metal design
  • Minimal parts for durable design
  • Class 100 cleanroom assembly, testing, and packaging
  • Easy to install and service
  • Robust bellows offer supply pressure of 7 Bar (100 psi)
  • No preventative maintenance during two-year warranty
White Knight Ultra-Pure Teflon PTFE/PFA Pump Materials
Chemical Recirculation and Delivery 7 Bar (100 psi) Pressures
Pump Temperatures to 210 Celsius (410 Fahrenheit)
White Knight Proximity Switch Shift Method
White Knight Two-Year Warranty
CE Certification Mark

Operation

PXU Series pumps operate with proximity switches and solenoid valve that optimize stroke timing by shifting the pump quickly and efficiently to increase durability.

Proximity-Controlled Pump Operations Diagram

Need shuttle valve or fiber optic sensors?

PSU Series pumps are controlled by shuttle valves.
PFU Series pumps are controlled with fiber optic sensors.

Supply Air

Exhaust Air

Ambient Air

Shift Signal

Liquid Suction

Liquid Discharge

Temperature Limits

PXU Series Air Supply Fluid Temperature Limitations

Performance Curves

PXU030 Performance Curves

PXU030 Performance Curves

PXUSD030 Performance Curves

PXUSD030 Performance Curves

PXU060 Performance Curves

PXU060 Performance Curves

PXUSD060 Performance Curves

PXUSD060 Performance Curves

PXU140 Performance Curves

PXU140 Performance Curves

Configuration

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Dimensions

PXU030 Dimensions

Dimensions: [mm] in

White Knight PXU030 Pump Dimensions
Download PXU030 Dimensions (PDF)

PXU060 Dimensions

Dimensions: [mm] in

White Knight PXU060 Pump Dimensions
Download PXU060 Dimensions (PDF)

PXU140 Dimensions

Dimensions: [mm] in

White Knight PXU140 Pump Dimensions
Download PXU140 Dimensions (PDF)

Specifications

Model
PXU030
PXU060
PXU140
Flow Rate*
27.1 LPM
7.16 GPM
65.7 LPM
17.36 GPM
139.9 LPM
36.96 GPM
Size of Air Connection
1/4" FNPT
1/4" FNPT
3/8" FNPT
Displacement Per Cycle*
0.077 liters
0.020 gal.
0.649 liters
0.050 gal.
0.500 liters
0.132 gal.
Cycles Per Minute*
390 max
366 max
247 max
Weight
5.57 kg
12.28 lbs.
13.74 kg
30.29 lbs.
20.41 kg
45.00 lbs.
Suction Lift*
1 m (3 ft)
1 m (3 ft)
1 m (3 ft)
Sound
Pressure**
69.54 dB(a)
79.56 dB(a)
68.60 dB(a)
82.12 dB(a)
76.90 dB(a)
80.19 dB(a)
Sound
Power**
58.44 dB(a)
64.49 dB(a)
60.66 dB(a)
73.35 dB(a)
74.22 dB(a)
76.42 dB(a)
Max Temperature
210°C (410°F)
Max Pressure
7 Bar (100 PSI)
Fluid Path Materials
PTFE / PFA
Non-Fluid Path Materials
PTFE / PFA / SS
Stroke Detection Options
Proximity stroke detection
Leak Detection Options
Fiber optic with or without sensor, or conductivity
Electronic Control
Available
Model
PXU030
PXU060
PXU140

*May vary depending on configuration. Suction lift diminishes over time. Recommended installation level less than 3 ft. above source.
**dB Level at 60PSI 50CPM (top) and 60PSI maximum CPM (bottom). Sound Levels measured in accordance with ISO9614-2:1997.
***Dry-run capable PXUSD030 and PXUSD060 pumps require flooded suction and may have a reduced warranty unless prior arrangements are made with White Knight. Contact White Knight for details.