Pumps for CMP Polishing
White Knight’s high-purity pumps feature Pneumatic Logic™, which reduces pulsation to prevent shear while gently pumping slurry. The pumps have long life spans and have been proven to operate reliably in the most demanding chemical environments.
PSD Series air-operated double-diaphragm (AODD) pumps feature UHMW (PE) fluid paths to allow for longer lifespans in abrasive slurry.

PSA Series Pumps
White Knight PSA060 and PSA140 pumps offer flow rates up to 60 lpm (16 gpm) and 140 lpm (36 gpm), respectively. They are capable of up to 7 Bar (100 psi) air supply pressures and fluid temperatures up to 100°C (212°F). They contain no metals and feature PTFE and PFA fluid paths. See PSA Series for details.

PSD Series Pumps
White Knight PSD Series pumps offer economical bulk transport of corrosive chemicals. The 1/2-inch PSD08, 1-inch PSD16, and 1-1/2-inch PSD24 are capable of pumping up to 60 lpm (16 gpm), 140 lpm (36 gpm), and 320 lpm (85 gpm), respectively. See PSD Series for details.
Compare Pump Performance
PSA060 Performance Curves

PSD08 Performance Curves

PSA140 Performance Curves

PSD16 Performance Curves

PSD24 Performance Curves

Compare Maximum Flow Rates
High-Purity Closed-Loop Pump 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.
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
- Maintain stable temperatures
- No metals, no corrosion
- No elastomer O-rings, no leaks
- No electric motors, no heat rise
- No impellers, no microbubbles
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.
Technological Advantages
White Knight engineers design superior fluid handling solutions for specialized chemical delivery technologies.