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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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P.025 Pro-Flo .25 Plastic

6 mm (1/4") Accu-Flo™ Clamped Plastic Pump A.025

AIR INLET
  • 1/8" FNPT
LIQUID INLET
  • 6 mm (1/4")
LIQUID DISCHARGE
  • 6 mm (1/4")
CONNECTION TYPE
  • NPT/BSPT (Threaded)
MAX SUCTION LIFT CAPABILITY
  • Rubber – 4.14 m (13.6') Dry, 9.33 m (30.6') Wet
  • PTFE – 3.96 m (13') Dry, 9.33 m (30.6') Wet
MAX FLOW RATE
  • Rubber – 12.1 lpm (3.2 gpm)
  • PTFE – 11.7 lpm (3.1 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 0.4 mm (1/64'')
DISPLACEMENT PER STROKE *
  • Rubber – 0.02 L (0.005 gal)
  • PTFE – 0.02 L (0.005 gal)
  • * 1 cycle = 2 strokes
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Features and Benefits

Accu-Flo™ Series Air-Operated Double-Diaphragm (AODD) Pumps give you the critical external pump control necessary for exacting applications such as batching. Featuring a direct electrical interface that utilizes electrical impulses to stroke the pump instead of differential pressure, the Accu-Flo Series provides a variable stroke rate that you can easily control as needed. To meet your applications, Accu-Flo Series pumps are available as NEMA 5-compliant and come in a variety of voltage options.
  • Integrated electronic (solenoid) control
  • Multiple signal input voltage options: 24V DC, 12V DC and 110V AC
  • Proven, robust clamped construction

Downloads

EOMs

Model: A.025 | Code: WIL-10020-E-06

Spec Sheets

Model: P.025 | Code: WIL-10090-T-01

Performance and Specifications

Dimensions

Dim-A.025-PlasticAccu-Flo

Note: Dimensions vary by material and connection. For additional information, please refer to the A.025/A.025P Plastic Manual.

Flow Curve – Rubber-Fitted

dim-a025p-plastic-rubber-fitted

Note: Additional performance curves can be found in the A100 Plastic Manual.

AIR INLET
  • 1/8" FNPT
LIQUID INLET
  • 6 mm (1/4")
LIQUID DISCHARGE
  • 6 mm (1/4")
CONNECTION TYPE
  • NPT/BSPT (Threaded)
MAX FLOW RATE
  • Rubber – 12.1 lpm (3.2 gpm)
  • PTFE – 11.7 lpm (3.1 gpm)
MAX PRESSURE
  • 8.6 bar (125 psi)
MAX DIAMETER SOLIDS
  • 0.4 mm (1/64'')
MAX SUCTION LIFT CAPABILITY
  • Rubber – 4.14 m (13.6') Dry, 9.33 m (30.6') Wet
  • PTFE – 3.96 m (13') Dry, 9.33 m (30.6') Wet
DISPLACEMENT PER STROKE *
  • Rubber – 0.02 L (0.005 gal)
  • PTFE – 0.02 L (0.005 gal)
  • * 1 cycle = 2 strokes

Wetted Housings 

Material Ship Weight
Polypropylene 1 kg (3 lb)
PVDF 1 kg (3 lb)

Non-Wetted Housings

Description Material
Center Section Polypropylene
Air Valve Polypropylene

Elastomer Options

Material Temperature Limits
Buna-N -12°C to 82°C (10°F to 180°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)
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