Air-Operated Double-Diaphragm Pumps

PTFE or UHMW (PE) AODD Pumps for Chemicals & Corrosives

White Knight PSB100 AODD Chemical Delivery Pumps

PSB Series air-operated double-diaphragm (AODD) pumps feature PTFE/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.

White Knight Two-Year Limited Warranty
PSB Series Spec Sheet
White Knight High-Purity Pneumatic Double-Diaphragm 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.

White Knight One-Year Limited Warranty

Maintenance may be required depending on duty cycle.

PSD Series Spec Sheet

Pump Specifications

Pump Models
PSB100
PSD04
PSD06
PSD08
PSD16
PSD24
Machined Design
PTFE/PFA Flow Paths
Tongue-and-Groove Seals
Max. Flow Rates
95 lpm (25 gpm)
14 lpm 3.6 gpm)
30 lpm (7.9 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 AODD Pump Performance

PSB100 Dimensionals

Dimensions: [mm] in

PSB100 AODD Pump Dimensions

PSD04 Performance

PSD04 AODD Pump Performance

PSD04 Dimensionals

Dimensions: [mm] in

PSD04 AODD Pump Dimensions
PSD04 Dimensions (PDF)

PSD06 Performance

PSD06 AODD Pump Performance

PSD06 Dimensionals

Dimensions: [mm] in

PSD06 AODD Pump Dimensions
PSD06 Dimensions (PDF)

PSD08 Performance

PSD08 AODD Pump Performance

PSD08 Dimensionals

Dimensions: [mm] in

PSD08 AODD Pump Dimensions
PSD08 Dimensions (PDF)

PSD16 Performance

PSD16 AODD Pump Performance

PSD16 Dimensionals

Dimensions: [mm] in

PSD16 AODD Pump Dimensions
PSD16 Dimensions (PDF)

PSD24 Performance

PSD24 AODD Pump Performance

PSD24 Dimensionals

Dimensions: [mm] in

PSD24 AODD Pump Dimensions
PSD24 Dimensions (PDF)

Compare AODD Pumps to Ultra-Pure Chemical Delivery Pumps

White Knight ultra-pure chemical delivery pumps feature PTFE/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
White Knight PSA060 PSA140 Chemical Pumps
White Knight Closed-Loop Control Systems

High-Purity Closed-Loop Pump Systems

Automatically maintain flow or pressure with metal-free closed-loop systems capable of high flow rates, high pressures, high 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