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Fernco·Flap valves
IBECO Tidal flap valves, flange-mounted
A passive non-return valve for wall mounting in tidal environments and where the pipeline has a fall. The valve has a 10-degree built-in incline that ensures the flap seats against the seat despite pressure variations caused by the tide.
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About the product
DN100–150 is covered by one and the same item for both PN10 and PN16; for these sizes, -2 is the Australian flange variant. From DN200 upwards, -1 applies to PN10, -2 to PN16 and -3 to AS2129 / AS4087. ‡ DN700 and above are included in the supplier's range but are not listed in the price list – price and lead time on request. Other flange adaptors are manufactured on request. The opening pressure refers to the maximum cracking head above water at 10° incline and does not take currents or debris into account. Flange bolts and gasket to the flange standard are not included. Product drawings for approval are provided upon receipt of order. Installation: No FVMS kit. Bolted directly to the flange to BS4504/ISO 7005 (DIN) or AS2129/AS4087. Bolts and gasket to the flange standard are not included. FVTFA is used against a wall-mounted gate. Operating temperature: Continuous 80 °C Intermittent 100 °C
Benefits
- 10° built-in incline for secure seating in tidal conditions and where the pipeline has a fall
- Co-extruded EPDM seal from FVT150 – no extra tape or sealant required
- Handle for easier handling and installation
- Seals up to 7 mVp against the seat, 5 mVp from DN1050
- Calculated service life: up to 60 years
Variants(29)
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Material specification
| Component | Material |
|---|---|
| Back plate and gate | PE (HDPE 500) |
| Seal | integrated EPDM to BS EN 681-1:1996 |
| Stainless steel | 316 (A4 / 1.4401) |
| – | Glass-fibre reinforced nylon (GFN) |
Certifieringar & standarder
DIN 19569-4
BS 7775
ISO 9001
Document
Tillbehör
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