AODD PS4 Pro-Flo Shift 1 1/2" / 38mm featuring the original air-operated double-diaphragm pump design by Jim Wilden. These clamped metal diaphragm pumps offer a simple, rugged design for general commercial and industrial applications. Designed with ease of maintenance in mind, PS4 38mm clamped pumps are simple to install and are made for quick serviceability, allowing the pump to be taken apart and put back together with only a single tool. Proven by the test of time, hundreds of thousands of Jim Wilden's Pro-Flo Shift clamped pumps have pumped an astonishing billions of gallons of fluid on an annual basis.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Featuring the energy-efficient Pro-Flo® SHIFT ADS
• Greater flow - more gallons pumped per SCFM
• Reduced air consumption and kilowatt usage
• Decades of proven performance
• Clamped connections for faster maintenance
• Low Cost
• Simple Installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 21 kg (46 lb)
Stainless Steel - 28 kg (62 lb)
Ductile Iron - 30 kg (66 lb)
Non-Wetted Housings - Materials
Center Section - Aluminum, Nickel-Plated Aluminum, Stainless Steel, Polypropylene
Air Valve - Aluminum, Nickel-Plated, Anodized Aluminum, Stainless Steel, Polypropylene
Air Chamber - Aluminum, Nickel-Plated, Stainless Steel
Diaphragm Pump Specifications:
- Air Inlet: 3/4" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
- Rubber – 7.0 m (22.9') Dry, 8.6 m (28.4') Wet
- EZ-Install TPE – 7.1 m Dry (23.3'), 8.6 m Wet (28.4')
- Full-Stroke PTFE – 7.0 m (22.9') Dry, 8.6 m (28.4') Wet
- Maximum Flow Rate:
- Rubber – 310 lpm (82 gpm)
- EZ-Install TPE – 314 lpm (83 gpm)
- Full-Stroke PTFE – 375 lpm (99 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 4.8 mm (3/16")
- *Displacement Per Stroke:
- Rubber – 1.0 L (0.27 gal)
- EZ-Install TPE – 1.0 L (0.27 gal)
- Full-Stroke PTFE – 1.0 L (0.27 gal)
- * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only

