The P8 is Wilden’s 2 inch clamped Pro-Flo air-operated diaphragm pump. It is used for bulk transfer, tank unloading and sludge duties where a 1-1/2 inch pump runs out of capacity.
Published figures
For aluminum build 08-15034 (Buna-N diaphragms):
- Ports: 2 inch (51 mm) NPT
- Maximum flow: 165 gpm (625 L/min)
- Maximum air pressure: 125 psi (8.6 bar)
- Dry suction lift: 22.7 ft (6.9 m)
- Temperature: 40 to 175 °F (4 to 79 °C) for this build
- Shipping weight: about 66 lb (30 kg)
Materials
Wilden lists P8 builds in aluminum (36), stainless steel (60), polypropylene (29) and cast iron (28). The stainless versions include Tri-Clamp builds for process lines that are opened for cleaning. For plastic at 2 inch, the bolted P800 is also listed at 165 gpm (625 L/min), with solids up to 0.25 inch (6.4 mm).
Wilden does not publish a maximum solids size for the clamped P8 pages we checked, so we do not quote one here. Send us a description of the liquid and we will confirm the build.