Ductile Iron Foot Valve
Product Introduction
Ductile Iron Foot Valve: At its core, a foot valve solves the universal challenge of maintaining pump prime when drawing liquid from a lower source. Our ductile iron foot valve excels in this role. Installed submerged at the inlet end of the suction pipe (in a well, tank, lake, etc.), it features a strainer to block large solids and a check mechanism that opens under suction pressure but closes by gravity/flow reversal when the pump stops. This prevents the costly and inefficient problem of water draining back, ensuring your pump starts easily and runs smoothly every time. Its ductile iron construction guarantees resilience against impact and corrosion, making it a universally trusted solution for water intake in diverse sectors like farming, construction, manufacturing, and municipal services.
Product Parameter
Main Material: Ductile Iron Body,SS304 Strainer
Size:2Inch,2.5Inch,3Inch,4Inch,5Inch,6Inch,8Inch,10Inch,12Inch
Pressure Rating:PN10/PN16/PN25
Working Medium:Water/Sewage
Color:Blue/Red
Flange End: ANSI /GB /BS Standard
Temperature Range:0℃-80℃
Product Material
Body:Ductile Iron,QT450-10
Strainer:Stainless Steel 304
Stem:Stainless Steel 304
Disc：Ductile Iron covered by EPDM
Spring:Stainless Steel 304
Bushing:bronze
FAQ
Q1:What exactly is a "Bottom Valve"?
A bottom valve (or foot valve) is a specialized one-way valve + strainer installed submerged at the lowest point of a suction pipe. Its core purpose: allow water in during pumping but slam shut when flow stops. This traps water in the pipe ("prime"), preventing pump dry-runs and backflow – essential for wells, tanks, or ponds.
Q2:Why choose a ductile iron foot valve over a swing check valve?
Foot valves are hybrid devices combining:
✓ Check valve function (backflow prevention)
✓ Strainer (debris exclusion)
✓ Submersible construction
Use them only at suction inlets (wells/tanks) to maintain prime and protect pumps. Swing checks suit horizontal/vertical pipe runs where filtration isn't needed – they fail if submerged at source intakes due to debris ingestion.
Q3: What procedure ensures strainer functionality?
The maintenance regimen involves:
1.System depressurization post-pump shutdown
2.Basket exposure through valve dismounting or designated ports
3.Particulate elimination via pressurized rinsing/gentle brushing
Cleaning intervals: Baseline monthly assessment, modified according to turbidity metrics with intensified frequency for granular-laden media.
Q4: May I obtain a sample before bulk ordering?
Yes, sample requests are accommodated under our standard terms:
• Product cost: Covered by us
• Shipping fee: Paid by custome
Q5: Do you have quantity requirements for valve purchases?
We specialize in bulk orders as standard factory practice. That said, engineering-specific orders may qualify for smaller quantities after review.
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