White Knight Legacy Pumps

Revolutionary PTFE Pumps for High-Purity Chemicals

Overview

White Knight’s revolutionary legacy model pumps were the world’s first 100% metal-free, PTFE and PFA pumps. White Knight has since improved upon legacy designs and released high-purity pumps that offer improved performance, better reliability, extended pump life, longer warranties, shorter delivery times, and more.

See replacement pumps (right). White Knight will continue support for legacy pumps. Contact us for details.

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

Specifications

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)	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 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.