Pump Foot Valve & Suction Strainer is used for keeping stones, leaves and debris out of pump suction lines at the inlet end, often combined with a foot valve that holds the prime. ASME B1.20.1 thread sizes is the reference cited for it on drawings, datasheets and purchase orders.
What ASME B1.20.1 thread sizes Means for Pump Foot Valve & Suction Strainer
The dimensions in the table below are supplied to suit ASME B1.20.1 thread sizes. Where the standard sets requirements for the finished appliance, device or system, compliance testing of that assembly stays with its manufacturer; we supply the metal mesh part to the drawing and can provide material certificates and dimensional reports with the shipment.
Pump Foot Valve & Suction Strainer Dimensions
| Size | Basket diameter (mm) | Depth (mm) | Hole diameter (mm) | Open area ratio (%) |
|---|---|---|---|---|
| 1 in | 60 | 70 | 4.0 | 300 |
| 2 in | 95 | 110 | 5.0 | 300 |
| 3 in | 135 | 150 | 6.0 | 250 |
| 4 in | 170 | 190 | 6.0 | 250 |
Specifying Pump Foot Valve & Suction Strainer Beyond the Standard
- Pipe size: 1–4 in thread or flange.
- Open area: At least 3× the pipe area to avoid cavitation.
- Holes: 4–6 mm perforation to stop stones and debris.
When Pump Foot Valve & Suction Strainer Is Not the Right Choice
Not a fine filter for drip systems.
