High-Purity Bellows Pumps

Reliable, metal-free pumps with PTFE/PFA flow paths

Overview

White Knight air-operated double-bellows (AODB) pumps are used to manufacture semiconductors, photovoltaic solar cells, LEDs, flat-panel displays and electronics. These high-purity chemical pumps feature PTFE/PFA fluid paths. They do not contain metals, elastomer O-rings, impellers or electric motors. Their reliable designs use minimal parts, and operate continuously throughout their warranty period with no required maintenance.

White Knight Pumps for Semiconductor Fabrication

Pump Models

White Knight high-purity pumps models are capable of 210°C (410°F), 145°C (293°F) or 100°C (212°F) temperatures, and they are available with on-board shuttle, fiber-optics or proximity controls. Economy pumps for recirculation applications are available, and dry-run versions are also available for most models.

Find Pumps by Temperatures

White Knight offers pumps capable of operating at up to 145°C (293°F) or 210°C (410°F), depending on model.

Pumps Capable of 100°C (212°F)

PSA Series pumps with shuttle valves
PFA Series pumps with fiber optics
PXA Series pumps with proximity switches

Pumps Capable of 145°C (293°F)

PSH Series pumps with shuttle valves
PFH Series pumps with fiber optics
PXH Series pumps with proximity switches

Pumps Capable of 210°C (410°F)

PSU Series pumps with shuttle valves
PFU Series pumps with fiber optics
PXU Series pumps with proximity switches

Find Pumps by Control Method

White Knight offers pumps with on-board shuttle valves, fiber optics or pressure switches.

Pumps with On-Board Shuttle Valves

PSA Series pumps for ambient-temperatures
PSH Series pumps for high-temperatures
PSU Series pumps for ultra-high temperatures
PSR Series pumps for recirculation applications

Pumps Controlled with Fiber Optics

PFA Series pumps for ambient-temperatures
PFH Series pumps for high-temperatures
PFU Series pumps for ultra-high temperatures

Pumps Controlled with Proximity Switches

PXA Series pumps for ambient-temperatures
PXH Series pumps for high-temperatures
PXU Series pumps for ultra-high temperatures

White Knight PSA Series Air-Operated Double-Bellows Pumps

PSA Series Pumps
Shuttle pumps for temperatures up to 100°C (212°F) and pressures up to 7 Bar (100 psi).

White Knight PSH Series Air-Operated Double-Bellows Pumps

PSH Series Pumps
Shuttle pumps for temperatures up to 145°C (293°F) and pressures up to 5.5 Bar (80 psi).

White Knight PSU Series Air-Operated Double-Bellows Pumps

PSU Series Pumps
Shuttle pumps for temperatures up to 210°C (410°F) and pressures up to 7 Bar (100 psi).

PSR Series Pumps
Economical shuttle pumps for recirculation applications. PSR pumps are capable of temperatures up to 100°C (212°F) and pressures up to 4 Bar (60 psi).

White Knight PFA Series Air-Operated Double-Bellows Pumps

PFA Series Pumps
Fiber-optic pumps for temperatures up to 100°C (212°F) and pressures up to 7 Bar (100 psi).

White Knight PFH Series Air-Operated Double-Bellows Pumps

PFH Series Pumps
Fiber-optic pumps for temperatures up to 145°C (293°F) and pressures up to 5.5 Bar (80 psi).

White Knight PFU Series Air-Operated Double-Bellows Pumps

PFU Series Pumps
Fiber-optic pumps for temperatures up to 210°C (410°F) and pressures up to 7 Bar (100 psi).

White Knight PXA Series Air-Operated Double-Bellows Pumps

PXA Series Pumps
Proximity pumps for temperatures up to 100°C (212°F) and pressures up to 7 Bar (100 psi).

White Knight PXH Series Air-Operated Double-Bellows Pumps

PXH Series Pumps
Proximity pumps for temperatures up to 145°C (293°F) and pressures up to 5.5 Bar (80 psi).

White Knight PXU Series Air-Operated Double-Bellows Pumps

PXU Series Pumps
Proximity pumps for temperatures up to 210°C (410°F) and pressures up to 7 Bar (100 psi).

Pump Configuration

       
   Different Outlet Fittings
Please select outlet connection, fitting and size.
   
 
Configuration:
             
*Notes: Pumps with SP2, SP3, or SP5 pressure switch stroke detection come without shuttle valve.
Pump operation in timer mode requires end-of-stroke detection (pressure switch) to prevent over-stroking. Operating pumps in timer mode without end-of-stroke detection voids the pump warranty. Do not use fiber optic stroke detection in applications over 135°C
*Notes: Fiber optics are required for operation. Standard configuration comes dual-probe WITHOUT fibers. Please see stroke detect option for fiber optic cables.
Pump operation in timer mode requires end-of-stroke detection (fiber-optic stoke detection) to prevent over-stroking. Operating pump in timer mode without end-of-stroke detection voids pump warranty.
Pump requires use of the included White Knight quick exhaust valves (QEVs) or QEVs supplied by the customer used with the optional NPT adapter. Operating pump without QEVs voids pump warranty.
*Notes: Proximity switch required for operation. Standard configuration comes WITHOUT proximity switch. Please see stroke detection options to order proximity switch.
Pump operation in timer mode requires end-of-stroke detection (pressure switch stoke detection) to prevent over-stroking. Operating pump in timer mode without end-of-stroke detection voids pump warranty.
Pump requires use of the included White Knight quick exhaust valves (QEVs) or QEVs supplied by the customer used with the optional NPT adapter. Operating pump without QEVs voids pump warranty.
Contact White Knight for copy exact code activation information.
 
  
   Different Outlet Fittings
   
Configuration:
         
     
   
Configuration:
          
Notes: All pump bodies are polypropylene (PP). Liquid fitting size matches orifice size. Thread on exhaust kit matches liquid connection.
 
      
   Different Port Fittings
          
Configuration:
                     
Notes: Default/1A Port options define all ports unless different port fittings are selected.
Standard communication is Serial RS422. Option H1 is only available with E3 or E4 Turck connector Electrical Connection. H1 cable length matches the selected E3 or E4 cable length. Option H2 only available with E4.
Contact White Knight for copy exact code activation information.
   
Configuration:
     
Contact White Knight for copy exact code activation information.
    
  Different Outlet Fittings
  
Configuration:
        
    
    Additional Fittings
       
Configuration:
               
Notes: CPA includes two liquid fittings and one drain/vent fitting. If liquid or drain/vent fitting styles or sizes are different please define the first fitting, and repeat fitting style and size for any fittings that are different from the previous call out. All fittings will be the same as the last fitting style and size defined.
   
  
 Different Outlet Fittings
  
 
Configuration:
         
Note: Flow through is 1/8-in. smaller than fitting size.
         
  
Configuration:
            
Notes: If Housing Bowl Fitting styles or sizes are different from Manifold Drain/Vent Fittings, please define the Manifold Drain/Vent Style and Size first (7-8) and use section below to define the Housing Bowl Fittings (9-10). All Housing Bowl fittings will be the same as Manifold Drain/Vent unless otherwise specified.
      
  Different Outlet Fittings
Please select outlet fitting and size.
  
Configuration:
           
*Notes: DBA and DBH top-mount dampeners are only compatible with A, H & R pumps and Legacy AP and X pumps.
Contact White Knight for copy exact code activation information.
  
Configuration:
   
Contact factory for copy exact code activation information.
  
Configuration:
   
Contact factory for copy exact code activation information.
    
 
Configuration:
      
Optional Catcher Wrench: 12100-PV-0029
Notes: Filters require a fitting to connect to pump or line. The Blank option is not NPT or any other standard.
Contact White Knight for copy exact code activation information.
 Configuration:
    
Optional Catcher Wrench: 12100-PV-0029
Notes: Special nut supplied by White Knight.
Contact White Knight for copy exact code activation information.
Configuration:
   
Optional Catcher Wrench: 12100-PV-0029
Notes: Inlet and Outlet are 1 in. NPT
Contact White Knight for copy exact code activation information.
 Configuration:
    
Optional Catcher Wrench: 12100-PV-0029
Notes: Pillar fittings require nut and ferrule and are NOT supplied by White Knight Fluid Handling
Contact White Knight for copy exact code activation information.

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Legacy Pump Models

White Knight’s legacy pumps include the world’s first metal-free Teflon® PTFE/PFA pumps, and the first pump capable of operating at 210°C (410°F). White Knight has since built upon legacy designs to offer improved performance, better reliability, extended pump life, shorter delivery times, and more.

Please see the recommended replacements or contact White Knight for more information.

White Knight will continue support for legacy pumps.

See All Legacy Models

AT Series Pumps

Replacement: PSU Series

X Series Pumps

Replacement: PSA or PSR

AP Series Pumps

Replacement: PSA Series

AP FM Series Pumps

Replacement: PSH Series

PL Series Pumps

Replacement: PSA Series

PX Series Pumps

Replacement: PXA Series

PLF Series Pumps

Replacement: PFA Series

Product Series	PSU	PFU	PXU	PSH	PFH	PXH	PSA	PFA	PXA	PSR
Max Air Supply Pressure	7 Bar 100 PSI	7 Bar 100 PSI	7 Bar 100 PSI	5.5 Bar 80 PSI	5.5 Bar 80 PSI	5.5 Bar 80 PSI	7 Bar 100 PSI	7 Bar 100 PSI	7 Bar 100 PSI	4 Bar 60 PSI
Max Operating Temperature	210° C 410° F	210° C 410° F	210° C 410° F	145° C 293° F	145° C 293° F	145° C 293° F	100° C 212° F	100° C 212° F	100° C 212° F	100° C 212° F
Max Flow Rates of Pump Models in LPM (GPM)	30 (7) 60 (15) 140 (36)	30 (7) 60 (15) 140 (36)	30 (7) 60 (15) 140 (36)	30 (7) 60 (15) 140 (36)	30 (7) 60 (15) 140 (36)	30 (7) 60 (15) 140 (36)	30 (7) 60 (15) 140 (36)	30 (7) 60 (15) 140 (36)	30 (7) 60 (15) 140 (36)	25 (6) 50 (13)
Shift Method	Shuttle Valve	Fiber Optics	Prox. Switch	Shuttle Valve	Fiber Optics	Prox. Switch	Shuttle Valve	Fiber Optics	Prox. Switch	Shuttle Valve
Fluid Path Materials	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA
Non-Fluid Path Materials	PTFE, PFA, Ceramic	PTFE, PFA	PTFE, PFA, SS	PTFE, PFA, Ceramic	PTFE, PFA	PTFE, PFA, SS	PTFE, PFA, PP, Ceramic	PTFE, PFA, PP	PTFE, PFA, PP, SS	PTFE, PFA, PP, Ceramic
Warranty Period	2 years	2 years	2 years	2 years	2 years	2 years	2 years	2 years	2 years	1 years
Comparable Legacy Model	AT	-	-	APFM	-	-	AP, X, PL	PLF	PX	X

Product Series	AT	AP	APFM	X	PL	PX	PLF
Max Air Supply Pressure	4 Bar 60 PSI	4 Bar 60 PSI	4 Bar 60 PSI	4 Bar 60 PSI	7 Bar 100 PSI	7 Bar 100 PSI	7 Bar 100 PSI
Max Operating Temperature	210° C 410° F	100° C 212° F	100° C 212° F	100° C 212° F	100° C 212° F	100° C 212° F	100° C 212° F
Max Flow Rates of Pump Models in LPM (GPM)	20 (5) 45 (12) 110 (30)	115 (30) 68 (17) 55 (14) 20 (5) 14 (3)	115 (30) 68 (17) 55 (14) 20 (5)	20 (5) 55 (14)	30 (7) 60 (15) 120 (30)	30 (7) 60 (15) 120 (30)	30 (7) 60 (15) 120 (30)
Shift Method	Shuttle Valve	Shuttle Valve	Shuttle Valve	Shuttle Valve	Shuttle Valve	Prox. Switch	Fiber Optic
Fluid Path Materials	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA	PTFE/PFA
Non-Fluid Path Materials	PTFE/PFA Ceramic	PTFE/PFA PP/Ceramic	PTFE/PFA Ceramic	PTFE/PFA PP/Ceramic	PTFE/PFA PP/Ceramic	PTFE/PFA PP / SS	PTFE/PFA PP
Application Purity (U=Ultra High Purity, H=High Purity)	U	U	U	U	U	H	U
Warranty Period	1 years	1 years	1 years	1 years	2 years	2 years	2 years
Recommended Replacement	PSU	PSA	PSH	PSR PSA	PSA	PXA	PFA

White Knight Closed-Loop Control Systems

High-Purity Closed-Loop Pump Systems

Automatically maintain laminar flow or steady pressure with metal-free closed-loop control systems offering stable temperatures, dead-head and suction lift!

White Knight’s closed-loop systems provide complete control of high purity chemical processes and delivery systems. They simplify process automation to save customers time and resources, and they reduce costs by eliminating the need for expensive pressure systems.

≤ 140 lpm (36 gpm) flow rates
≤ 7 Bar (100 psi) pressures
≤ 210°C (410°F) temperatures

No metals or elastomer O-rings
No impellers or electric motors
Maintain stable temperatures

High-Purity Closed-Loop Systems

Why Choose White Knight?

We Solve Fluid Handling Problems

White Knight Benefits

We understand the importance of quality materials and purity in the manufacturing environment. We go to great lengths to guarantee the purest, cleanest pumps with the industry’s best warranty.

View Benefits