PSD Series Air-Operated Double-Diaphragm Pumps

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

PSD Series Air-Operated Double-Diaphragm AODD Pumps
PSD Specification Sheet

Owner's Manuals

PSD04 Owner’s ManualPSD06 Owner’s ManualPSD08 Owner’s ManualPSD16 Owner’s ManualPSD24 Owner’s Manual

Exploded Views

PSD04 Exploded ViewPSD06 Exploded ViewPSD08 Exploded ViewPSD16 Exploded ViewPSD24 Exploded View

CAD Models

PSD04 CAD ModelsPSD06 CAD ModelsPSD08 CAD ModelsPSD16 CAD ModelsPSD24 CAD Models

Ordering Instructions

PSD Ordering Instructions
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Overview

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White Knight PSD Series air-operated double-diaphragm (AODD) pumps, feature Teflon® PTFE or UHMW (PE) corrosion-resistant fluid paths, which make the pumps ideal for corrosive or toxic liquids such as acids, fuels, glues, paints, resins, inks, or wastewater, as well as more viscous fluids and slurry.

The pumps are available in 1/4, 3/8, 1/2, 1, or 1-1/2 in models. They feature high-quality machined designs, unique sealing surfaces, and tight bolt configurations to ensure consistent, reliable performance and superior product containment. They have no exposed metals and may be configured in various materials to meet most abrasion, temperature, and chemical compatibility requirements. They are dead-head capable and achieve high flow rates while minimizing air consumption and operational noise. The pumps have non-lubricated, self-priming, icing-resistant air systems.

PSD Series pumps are easy to install, operate, and service. They can be serviced in the field to minimize repair costs, downtime, and production loss. They require few parts to rebuild and can be rebuilt in situations that would require other AODD pumps be replaced, which increases pump life and decreases total costs of ownership.

White Knight One-Year Limited Warranty
CE Certification Mark
High Purity Teflon PTFE and PFA Pump Materials
Chemical Delivery 7 Bar (100 psi) Pressures
Pump Temperatures to 100 Degrees Celsius (212 Degrees Fahrenheit)
White Knight Pneumatic Parallel Pilot Valve Shift Method

Maintenance may be required depending on duty cycle.

Features & Benefits

  • Teflon® PTFE or UHMW liquid paths
  • Leak-proof machined design
  • Plastic exteriors prevent corrosion and ensure clean, safe operation
  • Removeable air motor
  • Controlled in-house engineering and manufacturing
  • Positive seat-check assembly improves suction lift and pump performance
  • Non-lubricated, self-priming, icing-resistant air systems
  • UHMW is 1/2 the weight of steel
  • Various diaphragm and check materials
  • Polypropylene (PP) pump body
  • Dead-head capable operation
  • Dry-run, dry-prime capability
  • Small footprint; easy to install and service
  • Durable, field rebuildable design with minimal parts
  • Multiple liquid inlet/outlet directional setups
  • Minimizes factory environment noise and operator fatigue

Performance Curves

PSD04 Performance Curves

*Graph is for reference only. Performance was measured utilizing 1/2 in (3/8 in ID) air line and 1-1/4 in (1-1/8 in ID) liquid lines with 1 ft flooded suction. Performance may vary in your system.

PSD06 Performance Curves

*Graph is for reference only. Performance was measured utilizing 1/2 in (3/8 in ID) air line and 1-1/4 in (1-1/8 in ID) liquid lines with 1 ft flooded suction. Performance may vary in your system.

PSD08 Performance Curves

*Graph is for reference only. Performance was measured utilizing 1/2 in (3/8 in ID) air line and 1-1/4 in (1-1/8 in ID) liquid lines with 1 ft flooded suction. Performance may vary in your system.

PSD16 Performance Curves

*Graph is for reference only. Performance was measured utilizing 1/2 in (3/8 in ID) air line and 1-1/4 in (1-1/8 in ID) liquid lines with 1 ft flooded suction. Performance may vary in your system.

PSD24 Performance Curves

*Graph is for reference only. Performance was measured utilizing 1/2 in (3/8 in ID) air line and 1-1/4 in (1-1/8 in ID) liquid lines with 1 ft flooded suction. Performance may vary in your system.

Dimensions

PSD04 Dimensions

Dimensions: [mm] in

Download PSD04 Dimensions (PDF)

PSD06 Dimensions

Dimensions: [mm] in

Download PSD06 Dimensions (PDF)

PSD08 Dimensions

Dimensions: [mm] in

Download PSD08 Dimensions (PDF)

PSD16 Dimensions

Dimensions: [mm] in

Download PSD16 Dimensions (PDF)

PSD24 Dimensions

Dimensions: [mm] in

Download PSD24 Dimensions (PDF)

Operation

Parallel pilot valves eliminate stalling.

Supply Air

Exhaust Air

Liquid Suction

Liquid Discharge

Specifications

Model
PSD04
PSD06
PSD08
PSD16
PSD24
Max Flow Rate*
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)
Displacement
Per Cycle*
0.03 l
(0.008 gal.)
0.07 l
(0.019 gal.)
0.16 l
(0.042 gal.)
0.56 l
(0.148 gal.)
1.64 l
(0.433 gal.)
Connection
Sizes/Types
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
Max. Size of Passable Solids
1.5 mm
(0.06 in)
2 mm
(0.08 in)
4 mm
(0.16 in)
5 mm
(0.2 in)
8 mm
(0.32 in)
Suction Lift Dry*
2 m (6.5 ft)
3 m (10 ft)
3 m (10 ft)
4 m (13 ft)
5 m (16 ft)
Suction Lift Wet*
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)
Sound Pressure**
60.1 dB(a)
70.6 dB(a)
60.2 dB(a)
66.1 dB(a)
61.7 dB(a)
82.0 dB(a)
66.6 dB(a)
83.3 dB(a)
84.2 dB(a)
89.8 dB(a)
Sound Power**
60.7 dB(a)
64.2 dB(a)
51.7 dB(a)
58.1 dB(a)
54.5 dB(a)
74.8 dB(a)
61.6 dB(a)
78.3 dB(a)
83.2 dB(a)
91.1 dB(a)
Weight (PTFE)
1.4 kg
(3.0 lb)
3.1 kg
(6.8 lb)
9.0 kg
(19.8 lb)
18.2 kg
(40.1 lb)
43.2 kg
(95.2 lb)
Weight (UHMW)
1.8 kg
(4 lb)
2.7 kg
(6 lb)
6.2 kg
(13.7 lb)
12 kg
(26.4 lb)
27.2 kg
(60 lb)
Max Air/Fluid Temperature
PTFE 100°C (212°F)
UHMW 70°C (158°F)
Max. / Min.
Air Pressures
7 Bar (100 psi) maximum supply air pressure
2 Bar (30 psi) minimum startup air pressure
Fluid Path Materials
PTFE or UHMW
Diaphragm Materials
Over-molded PTFE/EPDM,
EPDM, or NBR
Check Ball Materials
PTFE, NBR, EPDM, or SS
Stroke Detection Options
Solid state pressure switch
(NPN or PNP) stroke detection
Leak Detection Options
Fiber optic (NPN or PNP) or conductivity stroke detection
Electronic Control
Available with Electronic Control
Model
PSD04
PSD06
PSD08
PSD16
PSD24

*May vary depending on materials. Suction lift diminishes over time. Minimize height for best performance.
**Sound Levels measured at 7 Bar 100 CPM (top) and 7 Bar maximum CPM (bottom) in accordance with ISO9614-2:1997.

Configuration

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