High-Purity Bellows Pumps

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

Overview

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

Select pumps by control method and temperature ratings.

White Knight Pumps for Semiconductor Fabrication

White Knight pumps series include models capable of 30, 60, and 140 lpm flow rates.

White Knight PSA Series High-Purity Pumps

PSA Series Pumps
Shuttle Valves
≤ 30, 60, 140 lpm
≤ 100°C (212°F)
≤ 7 Bar (100 psi)

White Knight PSH Series High-Purity Pumps

PSH Series Pumps
Shuttle Valves
≤ 30, 60, 140 lpm
≤ 145°C (293°F)
≤ 5.5 Bar (80 psi)

White Knight PSU Series Air-Operated Double-Bellows Pumps

PSU Series Pumps
Shuttle Valves
≤ 30, 60, 140 lpm
≤ 210°C (410°F)
≤ 7 Bar (100 psi)

White Knight PSR Series Pumps

PSR Series Pumps
Shuttle Valve
≤ 25, 50 lpm
≤ 100°C (212°F)
≤ 4 Bar (60 psi)

White Knight PFA Series High-Purity Pumps

PFA Series Pumps
Fiber Optics
≤ 30, 60, 140 lpm
≤ 100°C (212°F)
≤ 7 Bar (100 psi)

White Knight PFH Series High-Purity Pumps

PFH Series Pumps
Fiber Optics
≤ 30, 60, 140 lpm
≤ 145°C (293°F)
≤ 5.5 Bar (80 psi)

White Knight PFU Series High-Purity Pumps

PFU Series Pumps
Fiber Optics
≤ 30, 60, 140 lpm
≤ 210°C (410°F)
≤ 7 Bar (100 psi)

AP40 EXT3 High-Purity Chemical Recirculation Pump

APEXT3 Pumps
Shuttle
≤ 14 lpm
≤ 100°C (212°F)
≤ 4 Bar (60 psi)

White Knight PXA B Series High-Purity Pumps

PXA Series Pumps
Proximity
≤ 30, 60, 140 lpm
≤ 100°C (212°F)
≤ 7 Bar (100 psi)

White Knight PXH Series High-Purity Pumps

PXH Series Pumps
Proximity
≤ 30, 60, 140 lpm
≤ 145°C (293°F)
≤ 5.5 Bar (80 psi)

White Knight PXU Series High-Purity Pumps

PXU Series Pumps
Proximity
≤ 30, 60, 140 lpm
≤ 210°C (410°F)
≤ 7 Bar (100 psi)

Legacy Pumps

White Knight designed the world’s first metal-free PTFE and PFA pumps, and the first chemical pumps capable of 210°C (410°F). White Knight still supports legacy pumps, but also offers upgraded pumps with improved performance, better reliability, extended pump life, longer warranties, and shorter lead times. Contact White Knight for details.

Legacy Pumps
White Knight Closed-Loop Control Systems

High-Purity Closed-Loop Systems

Automatically maintain laminar flow or steady pressure. White Knight closed-loop systems feature metal-free pumps with PTFE and PFA flow paths. They provide stable temperatures, dead-head, and suction lift.

Control your high-purity chemical processes and delivery systems. Simplify process automation to save time, resources and reduce costs.

  • ≤ 140 lpm (36 gpm) flow rates
  • ≤ 7 Bar (100 psi) pressures
  • ≤ 210°C (410°F) temperatures
  • Maintain stable temperatures
  • No metals, no corrosion
  • No elastomer O-rings, no leaks
  • No electric motors, no heat rise
  • No impellers, no microbubbles
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.

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Technological Advantages

White Knight engineers design superior fluid handling solutions for specialized chemical delivery technologies.

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White Knight Rebuild Training for High-Purity Pumps

Training Programs

Certified Training White Knight provides comprehensive training for all employees and distributors…

White Knight Testing Lab with Metering Pumps PEM050

Testing Programs

Product Testing All White Knight products are subject to various testing procedures…

White Knight Cleanroom for Pumps used in Non-Metal Applications

Repairs and Rebuilds

Rebuild Pump, Renew Warranty White Knight pumps are designed for easy, quick…

White Knight High-Purity Pump Bodies and Heads

Inventory & Tracking

White Knight eliminates inventory waste and obstacles by minimizing our supply chain…

White Knight offers Best Warranty in the Industry

Warranty

Industry’s Best Warranty White Knight provides the industry’s best warranty. We are…