Wilden Products

Durability, Reliability and Cost Savings

Not only are Wilden pumps the most cost-effective, reliable and energy-efficient solutions available, but our state-of-the-art air distribution systems (ADS) significantly increase positive displacement pump productivity by reducing air consumption and maintenance for the most energy-efficient AODD pump operation possible.

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Wilden® solves pumping challenges across the spectrum

Wilden® positive displacement air-operated double-diaphragm (AODD) pump solutions are leading the way in a host of industries and applications.

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The Wilden World of Service and Support - Assistance Beyond Expectations

Wilden® is always ready to assist with technical support for Wilden AODD pumps, parts or accessories.

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PS4_1.5_in._Pro-Flo_SHIFT_Clamped_Aluminum PS4_1.5_in._Pro-Flo_SHIFT_Clamped_Stainless_Steel PS4_1.5_in._Pro-Flo_SHIFT_Clamped_Ductile_Iron

38 mm (1-1/2") Pro-Flo® SHIFT Series Clamped Metal Pump PS4

AIR INLET
  • 3/4" FNPT
LIQUID INLET
  • 38 mm (1-1/2")
LIQUID DISCHARGE
  • 32 mm (1-1/4")
CONNECTION TYPE
  • NPT/BSPT (Threaded)
MAX 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
MAX FLOW RATE
  • Rubber – 310 lpm (82 gpm)
  • EZ-Install TPE – 314 lpm (83 gpm)
  • Full-Stroke PTFE – 375 lpm (99 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX 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
  • icon_cert-CE
  • icon_cert-Ex

Features and Benefits

Featuring the original air-operated double-diaphragm pump design by Jim Wilden, clamped metal pumps offer a simple, rugged design for general industrial applications. Designed with ease of maintenance in mind, 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 clamped pumps have pumped billions of gallons of fluid on an annual basis.

  • NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect

Want to see how benefits of Pro-Flo SHIFT compare to the competition? Visit the Wilden Comparison Central Blog.

  • 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

Performance and Specifications

Dimensions

Dim-PS1-38mm-1.5in-PF-SSCMP

Note: Dimensions vary by material and connection. For additional information, please refer to the PS4 Metal Manual.

Flow Curve – EZ-Install TPE-Fitted

Flo-PS1-38mm-1.5in-PF-SSCMP

Note: Additional performance curves can be found in the PS4 Metal Manual.

AIR INLET
  • 3/4" FNPT
LIQUID INLET
  • 38 mm (1-1/2")
LIQUID DISCHARGE
  • 32 mm (1-1/4")
CONNECTION TYPE
  • NPT/BSPT (Threaded)
MAX FLOW RATE
  • Rubber – 310 lpm (82 gpm)
  • EZ-Install TPE – 314 lpm (83 gpm)
  • Full-Stroke PTFE – 375 lpm (99 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 4.8 mm (3/16")
MAX 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
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

Wetted Housings

Material Ship Wt
Aluminum 21 kg (46 lb)
Stainless Steel 28 kg (62 lb)
Ductile Iron 30 kg (66 lb)

Non-Wetted Housings

Description Material
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

Elastomer Options

Material Temperature Limits
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