WILDEN P025 Compact AODD Diaphragm Pump – 19 L/min, 1/4″ Ported

The P.025, often written P025, is the smallest pump in Wilden’s Pro-Flo range. It has 1/4 inch ports and is meant for dosing, sampling and other small transfer jobs.

Specifications

From Wilden’s data for build 00-9730:

• Ports: 1/4 inch (6 mm) NPT, on the side of the pump
• Maximum flow: 5 gpm (19 L/min)
• Maximum air pressure: 125 psi (8.6 bar)
• Maximum solids: 0.02 inch (0.5 mm)
• Dry suction lift: 10.67 ft (3.3 m)
• Temperature: 40 to 175 °F (4 to 79 °C) for this build
• Shipping weight: about 6.25 lb (2.8 kg)

Wilden lists 39 P.025 builds: aluminum (7), stainless steel (8), polypropylene (16) and PVDF (8).

Good to know

The solids limit is very small, so the P.025 is for clean liquids only. Its flow also drops quickly as discharge pressure rises, which is normal for such a small pump. Check the duty point on the curve rather than relying on the maximum flow.