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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

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P820_2_in._Pro-Flo_Bolted_Threaded_Aluminum P830_2_in._Pro-Flo_Bolted_Flanged_Aluminum P830_2_in

51 mm (2") Pro-Flo® Series Bolted Metal Pump P820/P830

AIR INLET
  • 1/2" FNPT
LIQUID INLET
  • 51 mm (2")
LIQUID DISCHARGE
  • 51 mm (2")
CONNECTION TYPE
  • NPT/BSPT (Threaded)
  • DIN/ANSI (Flanged)
MAX SUCTION LIFT CAPABILITY
  • Rubber – 7.4 m (24.3') Dry, 9.0 m (29.5') Wet
  • EZ-Install TPE – 6.7 m (21.9') Dry, 9.0 m (29.5') Wet
  • Full-Stroke PTFE – 6.9 m (22.6') Dry, 9.0 m (29.5') Wet
  • Reduced-Stroke PTFE – 4.6 m (15.1') Dry, 9.0 m (29.5') Wet
MAX FLOW RATE
  • Rubber – 609 lpm (161 gpm)
  • EZ-Install TPE – 605 lpm (160 gpm)
  • Full-Stroke PTFE – 590 lpm (156 gpm)
  • Reduced-Stroke PTFE – 492 lpm (130 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 6.4 mm (1/4")
DISPLACEMENT PER STROKE *
  • Rubber –2.8 L (0.74 gal)
  • EZ-Install TPE – 2.5 L (0.67 gal)
  • Full-Stroke PTFE – 2.5 L (0.65 gal)
  • Reduced-Stroke PTFE – 1.7 L (0.46 gal)
  • * 1 cycle = 2 strokes
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Features and Benefits

The Wilden® bolted metal pump, also known as FIT, sets the new standard for pump performance. Featuring an enhanced flow path design, Wilden's bolted-construction pumps offer improved flow rates (up to 35% over competitive models) as well as improved diaphragm life. Wilden's bolted pumps are also designed for superior containment and have the exact bolt down footprint and inlet/discharge connections as Wilden clamped pumps for easy replacement.

  • NPT or BSPT threaded inlet/discharge liquid connections (P820)
  • DIN or ANSI flanged inlet/discharge liquid connections (P830) that don't require welding or nipple attachment
  • Largest chemical compatibilities
  • Portable and submersible
  • Large-solids passage
  • High suction lift
  • Ease of operation and maintenance
  • Flexible internal adjustment on manifolds
  • Increased on/off reliability
  • Longest Mean Time Between Repair (MTBR)

Performance and Specifications

Dimensions

Dim-P820-P830-51mm2in-BMP

Note: Dimensions vary by material and connection. For additional information, please refer to the P820/P830 Metal Manual.

Flow Curve – EZ-Install TPE-Fitted

Flo-P820-P830-51mm2in-BMP

Note: Additional performance curves can be found in the P820/P830 Metal Manual.

AIR INLET
  • 1/2" FNPT
LIQUID INLET
  • 51 mm (2")
LIQUID DISCHARGE
  • 51 mm (2")
CONNECTION TYPE
  • NPT/BSPT (Threaded)
  • DIN/ANSI (Flanged)
MAX FLOW RATE
  • Rubber – 609 lpm (161 gpm)
  • EZ-Install TPE – 605 lpm (160 gpm)
  • Full-Stroke PTFE – 590 lpm (156 gpm)
  • Reduced-Stroke PTFE – 492 lpm (130 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 6.4 mm (1/4")
MAX SUCTION LIFT CAPABILITY
  • Rubber – 7.4 m (24.3') Dry, 9.0 m (29.5') Wet
  • EZ-Install TPE – 6.7 m (21.9') Dry, 9.0 m (29.5') Wet
  • Full-Stroke PTFE – 6.9 m (22.6') Dry, 9.0 m (29.5') Wet
  • Reduced-Stroke PTFE – 4.6 m (15.1') Dry, 9.0 m (29.5') Wet
DISPLACEMENT PER STROKE *
  • Rubber –2.8 L (0.74 gal)
  • EZ-Install TPE – 2.5 L (0.67 gal)
  • Full-Stroke PTFE – 2.5 L (0.65 gal)
  • Reduced-Stroke PTFE – 1.7 L (0.46 gal)
  • * 1 cycle = 2 strokes

Wetted Housings

Material Ship Weight
Aluminum 47 kg (104 lb) (P820)
54 kg (118 lb) (P830)
Stainless Steel 73 kg (161 lb) (P820)
81 kg (178 lb) (P830)
Ductile Iron
71 kg (156 lb) (P820)
82 kg (181 lb) (P830)

Non-Wetted Housings

Description Material
Center Section Polypropylene
Air Valve Polypropylene
Air Chamber 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)
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