Flanged Foot Valves
A flanged foot valve is fitted to the end of a pump suction pipe; its strainer holds back large particles and its clapper stops water in the suction line draining back when the pump stops.
It is used on centrifugal pump lines drawing from tanks, ponds, wells and rivers. The product range includes cast iron PN16 models from DN50 to DN300.
Main Applications
- Pump suction from tanks and ponds
- Well and cistern suction lines
- Fire pump suction lines
- Agricultural irrigation pumps
- Industrial water suction lines
Technical Data
| Type | Flanged foot valve (with strainer) |
|---|---|
| Sizes | DN50, 65, 80, 100, 125, 150, 200, 250, 300 (product range) |
| Pressure | PN16 · test pressure 25 bar |
| Temperature | −10 … +80 °C (cast iron) |
| Flange | PN16 drilled, compatible with PN10 (DIN 2501 / BS 4504) |
| Clapper | Spring-loaded, low pressure loss |
| Strainer | HD polyethylene; stainless option |
| Fluid | Clean liquids, water |
| Mounting | Any position from horizontal to vertical upflow |
Material Options
| Part | PN16 · cast iron flanged |
|---|---|
| Body | Cast iron GG25 |
| Clapper and guide | Cast iron GG25 |
| Seal | NBR |
| Spring | Stainless steel AISI 302 |
| Strainer | HD polyethylene; stainless option |
Which material? A foot valve should be fitted at the lowest end of the suction pipe, with enough clearance from the bottom and surface; a clogged strainer causes pump cavitation. Values come from the foot valve manufacturer sheet.
Advantages
Keeps Suction Primed
- No re-priming needed
With Strainer
- Holds back large particles
Spring-Loaded Clapper
- Fast closing
Wide Size Range
- From DN50 to DN300
Construction and Design Features
- Cast iron body
- Spring-loaded clapper and guide
- NBR seal
- Strainer basket
Send the suction pipe size, flow and water condition; we will confirm a suitable flanged foot valve from stock.
How to Choose?
- Size and flangeChoose suction pipe size and flange standard.
- PressureConfirm PN16 suits the system.
- Water and temperatureCheck water quality and temperature.
- StrainerChoose a PE or stainless strainer.
Complementary Products
Why ORFA?
Other Foot Valves
Our Flanged Foot Valves
ORFA supplies flanged foot valves in a range of pressure classes, sizes and connection types to suit your application. Descriptions, technical specifications, materials and dimension tables are available on each detail page.
Get a quote for your project
Our sales team will prepare the best solution for your needs.