PSB Series air-operated double-diaphragm (AODD) pumps feature Teflon® PTFE and PFA fluid paths for high-purity chemical delivery, dispense and transfer applications. They are capable of 95 lpm flow rates and 5.5. Bar (80 psi) air pressures. PSB100 pumps are direct retrofit replacements for obsolete chemical delivery pumps.
PSD Series air-operated double-diaphragm (AODD) pumps offer superior performance, optimized efficiency, simplified maintenance, and reduced noise levels. Their leak-proof and icing-resistant design provides constant, reliable, and safe operation in applications that utilize corrosive or toxic liquids, viscous fluids, or slurry.
Maintenance may be required depending on duty cycle.
Pump Specifications
| Pump Models | PSB100 |
PSD04 |
PSD06 |
PSD08 |
PSD16 |
PSD24 |
|---|---|---|---|---|---|---|
Machined Design |
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PTFE/PFA Flow Paths |
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Tongue-and-Groove Seals |
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Max. Flow Rates |
95 lpm (25 gpm) |
14 lpm 3.6 gpm) |
28 lpm (7.4 gpm) |
63 lpm (16.6 gpm) |
142 lpm (37.5 gpm) |
372 lpm (98.3 gpm) |
Connection Sizes/Style |
Disk or WK Fittings |
1/4 in. NPT 1/4 in. BSP |
3/8 in. NPT 3/8 in. BSP |
1/2 in. NPT 1/2 in. BSP |
1 in. NPT 1 in. BSP |
1-1/2 in. NPT 1-1/2 in. BSP |
Fluid Path Materials |
PTFE, PFA |
PTFE, PFA |
PTFE, PFA |
PTFE, PFA |
PTFE, PFA |
PTFE, PFA |
Max. Supply Air Pressures |
5.5 Bar (80 psi) |
7 Bar (100 psi) |
7 Bar (100 psi) |
7 Bar (100 psi) |
7 Bar (100 psi) |
7 Bar (100 psi) |
Min. Startup Air Pressures |
1.4 Bar (20 psi) |
1.4 Bar (20 psi) |
1.4 Bar (20 psi) |
1.4 Bar (20 psi) |
1.4 Bar (20 psi) |
1.4 Bar (20 psi) |
Max Temperatures |
100°C (212°F) |
100°C (212°F) |
100°C (212°F) |
100°C (212°F) |
100°C (212°F) |
100°C (212°F) |
Suction Lift* |
3 m (10 ft.) |
9.5 m (31 ft.) |
9.5 m (31 ft.) |
9.5 m (31 ft.) |
9.5 m (31 ft.) |
9.5 m (31 ft.) |
Weight |
15.7 kg (34.7 lbs.) |
1.4 kg (3.0 lbs) |
3.1 kg (6.8 lb.) |
9.0 kg (19.8 lbs.) |
18.2 kg (40.1 lbs.) |
43.2 kg (95.2 lbs) |
Air Connection |
1/2 in. FNPT |
1/8 in. FNPT |
1/8 in. FNPT |
1/4 in. FNPT |
1/4 in. FNPT |
1/4 in. FNPT |
Limited Warranty |
2 Year |
1 Year |
1 Year |
1 Year |
1 Year |
1 Year |
*May vary by configuration. Suction lift diminishes over time. Recommended installation level less than 3 ft above source. Contact White Knight for details.
Pump Performance & Dimensions
PSB100 Performance
PSB100 Dimensionals
Dimensions: [mm] in
PSD04 Performance
PSD06 Performance
PSD08 Performance
PSD16 Performance
PSD24 Performance
Compare AODD Pumps to Ultra-Pure Chemical Delivery Pumps
White Knight ultra-pure chemical delivery pumps feature Teflon® PTFE and PFA fluid paths for optimal chemical compatibility. They do not contain metals or elastomer O-rings to eliminate corrosion, contamination and leaks. They do not contain impellers or electric motors, which generate heat. They also offer suction lift, idle at dead-head and provide reliable restarts without intervention.
- No metals or elastomer O-rings
- No impellers or electric motors
- Maintain stable temperatures
- ≤ 140 lpm (36 gpm) flow rates
- ≤ 7 Bar (100 psi) pressures
- ≤ 210°C (410°F) temperatures
Compare Chemical Delivery Pumps
High-Purity Closed-Loop Pump Systems
Automatically maintain laminar flow or steady pressure. White Knight closed-loop systems feature metal-free pumps with Teflon® 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
High-Purity Closed-Loop Systems
