Wilden AODD Double Diaphragm Pump - 51 mm (2 in.) - Pro-Flo Clamped Ductile Iron - P8 Wilden AODD Double Diaphragm Pump - 51 mm (2 in.) - Pro-Flo Clamped Stainless Steel - P8

51 mm (2") Pro-Flo® Series Clamped Metal AODD Pump P8

AIR INLET
  • 1/2" FNPT
LIQUID INLET
  • 51 mm (2")
LIQUID DISCHARGE
  • 51 mm (2")
CONNECTION TYPE
  • NPT/BSPT (Threaded)
MAX SUCTION LIFT CAPABILITY
  • Rubber –6.9 m (22.7') Dry, 8.6 m (28.4') Wet
  • TPE – 6.7 m (22.1') Dry, 8.6 m (28.4') Wet
  • Full-Stroke PTFE – 6.7 m (22.1') Dry, 9.0 m (29.5') Wet
  • Reduced-Stroke PTFE – 4.6 m (15.0') Dry, 9.5 m (31.0') Wet
  • Ultra-Flex™ – 4.9 m (16.0') Dry, 8.8 m (29.0') Wet
MAX FLOW RATE
  • Rubber – 623 lpm (165 gpm)
  • TPE – 630 lpm (166 gpm)
  • Full-Stroke PTFE – 618 lpm (163 gpm)
  • Reduced-Stroke PTFE – 496 lpm (131 gpm)
  • Ultra-Flex™ – 526 lpm (139 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 6.4 mm (1/4'')
DISPLACEMENT PER STROKE *
  • Rubber – 2.6 L (0.70 gal)
  • TPE – 2.8 L (0.75 gal)
  • Full-Stroke PTFE – 2.6 L (0.70 gal)
  • Reduced-Stroke PTFE – 1.67 L (0.44 gal)
  • Ultra-Flex™ – 2.12 L (0.56 gal)
  • * 1 cycle = 2 strokes
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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
  • Decades of proven performance
  • Clamped connections for faster maintenance
  • Low cost
  • Simple installation
  • Ease of operation and maintenance

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Spec Sheets

Model: P8 | Code: WIL-10184-T-02

Performance and Specifications

Dimensions

Dim-P8-51mm2in-CMP

Note: Dimensions vary by material and connection. For additional information, please refer to the P8 Metal Manual.

Flow Curve – TPE-Fitted

Flo-P8-51mm2in-CMP

Note: Additional performance curves can be found in the P8 Metal Manual.

AIR INLET
  • 1/2" FNPT
LIQUID INLET
  • 51 mm (2")
LIQUID DISCHARGE
  • 51 mm (2")
CONNECTION TYPE
  • NPT/BSPT (Threaded)
MAX FLOW RATE
  • Rubber – 623 lpm (165 gpm)
  • TPE – 630 lpm (166 gpm)
  • Full-Stroke PTFE – 618 lpm (163 gpm)
  • Reduced-Stroke PTFE – 496 lpm (131 gpm)
  • Ultra-Flex™ – 526 lpm (139 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 6.4 mm (1/4'')
MAX SUCTION LIFT CAPABILITY
  • Rubber –6.9 m (22.7') Dry, 8.6 m (28.4') Wet
  • TPE – 6.7 m (22.1') Dry, 8.6 m (28.4') Wet
  • Full-Stroke PTFE – 6.7 m (22.1') Dry, 9.0 m (29.5') Wet
  • Reduced-Stroke PTFE – 4.6 m (15.0') Dry, 9.5 m (31.0') Wet
  • Ultra-Flex™ – 4.9 m (16.0') Dry, 8.8 m (29.0') Wet
DISPLACEMENT PER STROKE *
  • Rubber – 2.6 L (0.70 gal)
  • TPE – 2.8 L (0.75 gal)
  • Full-Stroke PTFE – 2.6 L (0.70 gal)
  • Reduced-Stroke PTFE – 1.67 L (0.44 gal)
  • Ultra-Flex™ – 2.12 L (0.56 gal)
  • * 1 cycle = 2 strokes

Wetted Housings

Material Ship Weight
Aluminum 32 kg (70 lb)
Stainless Steel 51 kg (112 lb)
Cast Iron
47 kg (104 lb)
Alloy C
52 kg (114 lb)

Non-Wetted Housings

Description Material
Center Block Polypropylene
Air Valve Polypropylene
Air Chamber Aluminum, PTFE-Coated, Nickel-Plated, Stainless Steel, Halar-Coated Aluminum

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)
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