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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P400 Pro-Flo 1.5 Plastic

38 mm (1-1/2") Pro-Flo® Series Bolted Plastic Pump P400

AIR INLET
  • 1/2" FNPT
LIQUID INLET
  • 38 mm (1-1/2")
LIQUID DISCHARGE
  • 38 mm (1-1/2")
CONNECTION TYPE
  • DIN/ANSI (Flanged)
MAX SUCTION LIFT CAPABILITY
  • Rubber – 5.5 m (18.2') Dry, 9.0 m (29.5') Wet
  • TPE – 4.8 m (15.9') Dry, 9.3 m (30.6') Wet
  • Full-Stroke PTFE – 5.7 m (18.7') Dry, 9.3 m (30.6') Wet
  • Reduced-Stroke PTFE – 3.3 m (10.8') Dry, 9.7 m (31.8') Wet
MAX FLOW RATE
  • Rubber – 454 lpm (120 gpm)
  • TPE – 454 lpm (120 gpm)
  • Full-Stroke PTFE – 424 lpm (111.9 gpm)
  • Reduced-Stroke PTFE – 318 lpm (84 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 6.35 mm (1/4'')
DISPLACEMENT PER STROKE *
  • Rubber- 1.25 L (0.33 gal)
  • TPE- 1.34 L (0.35 gal)
  • Full-Stroke PTFE – 1.1 L (0.30 gal)
  • Reduced-Stroke PTFE – 0.59 L (0.155 gal)
  • * 1 cycle = 2 strokes
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Features and Benefits

The Wilden® bolted plastic air-operated double-diaphragm (AODD) pump combines maximum performance and efficiency with superior containment. Wilden's bolted-construction pumps offer improved flow rates and a redesigned liquid path that reduces internal friction for maximum output and longer diaphragm life.

  • DIN or ANSI flanged inlet/discharge liquid connections
  • Decades of proven performance
  • Bolted construction for superior containment
  • Large-solids passage
  • High suction lift
  • Ease of operation and maintenance
  • Increased on/off reliability
  • Longest Mean Time Between Repair (MTBR)

Downloads

EOMs

Model: P400 | Code: WIL-11241-E-03

Dimensional Drawings

Spec Sheets

Model: P400 | Code: WIL-11241-T-01

Performance and Specifications

Dim-P400-38mm1.5in-BPP

Note: Dimensions vary by material and connection. For additional information, please refer to the P400 Plastic Manual.

Flow Curve – TPE-Fitted

Flo-P400-38mm1.5in-BPP

Note: Additional performance curves can be found in the P400 Plastic Manual.

AIR INLET
  • 1/2" FNPT
LIQUID INLET
  • 38 mm (1-1/2")
LIQUID DISCHARGE
  • 38 mm (1-1/2")
CONNECTION TYPE
  • DIN/ANSI (Flanged)
MAX FLOW RATE
  • Rubber – 454 lpm (120 gpm)
  • TPE – 454 lpm (120 gpm)
  • Full-Stroke PTFE – 424 lpm (111.9 gpm)
  • Reduced-Stroke PTFE – 318 lpm (84 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 6.35 mm (1/4'')
MAX SUCTION LIFT CAPABILITY
  • Rubber – 5.5 m (18.2') Dry, 9.0 m (29.5') Wet
  • TPE – 4.8 m (15.9') Dry, 9.3 m (30.6') Wet
  • Full-Stroke PTFE – 5.7 m (18.7') Dry, 9.3 m (30.6') Wet
  • Reduced-Stroke PTFE – 3.3 m (10.8') Dry, 9.7 m (31.8') Wet
DISPLACEMENT PER STROKE *
  • Rubber- 1.25 L (0.33 gal)
  • TPE- 1.34 L (0.35 gal)
  • Full-Stroke PTFE – 1.1 L (0.30 gal)
  • Reduced-Stroke PTFE – 0.59 L (0.155 gal)
  • * 1 cycle = 2 strokes

Wetted Housings

Material Ship Weight
Polypropylene 19 kg (41 lb)
PVDF
27 kg (59 lb)

Non-Wetted Housings

Description Material
Center Block Polypropylene
Air Valve Polypropylene
Air Chamber Polypropylene

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°C 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