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FV21 Flap Valve
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FV Series · Flap Valve
Fernco FV21 Wall Mount Flap Valve
Part # FV21
- Class 5. Exceeds the leakage rate requirements of DIN 19569-4 Class 5 and BS 7775.
- Won’t rust. HMWPE won’t rust, pit or seize in tidal, submerged and corrosive outfalls.
- No sealants. The EPDM co-extrusion seal installs clean, with no added tapes or sealants.
- 316 stainless. Marine-grade 316 stainless counterweight and hardware.
Dimensions
Product details
Passive backflow protection for stormwater outfalls and drainage systems. Water flows out. When the water outside rises, the flap closes.
Specifications
Drawings and downloads
Documents
Dimensional drawing
FV21, PDF · 145.82 KB
- Flap Valve Sell Sheet PDF · 2.47 MB
- Flap Valve Spigot Mount Instructions PDF · 1.92 MB
- Flap Valve Wall Mount Instructions PDF · 2.23 MB
- Flap Valves Case Study - Built on a Floor Plain PDF · 936.44 KB
- Flap Valves Case Study - HMWPE Wall Mounted Flap Valves PDF · 1.11 MB
- Flap Valves Spigot Mount Submittal Packet PDF · 2.52 MB
- Flap Valves Technical Booklet PDF · 5.48 MB
- Flap Valves Wall Mount Submittal Packet PDF · 3.36 MB
- Installation instructions All products
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