Dual plate check valve with centering lugs ensures the protection of pumps or of parts of networks against flow inversion.
Applications :
- Pumping stations for drinking water distribution and irrigation (filtered water).
- Drinking water networks.
- Irrigation networks (filtered water).
- Fire protection networks
Product benefits :
- One-piece body for robustness and corrosion resistance. Maintenance free.
- Cassette system allowing a quick replacement of internal components (plate, shaft, spring).
- Spring ensures the return of the plates, preventing friction and therefore premature wear of the seal.
- Integrated vulcanized seal (DN 40 to 300): better resistance to corrosion because the body is not in contact with water.
- No flange gasket required (economy).
- Compactness.
- Horizontal or vertical mounting.
- Low head loss.
- Symmetrical flows obtained thanks to limit stop when plates are fully opened.
Range :
- DN 40 to 300 type 718.
- PFA 16
Technical data :
- Face-to-face dimensions according to standards EN 558-1 series 16 and ISO 5752 series 16.
- Mounting between flanges according to standards EN 1092-2 and ISO 7005-2 : ISO PN 10 or 16 or 25 and ANSI150.
- Working temperature : -10°C to +50°C
- Counterpressure to be tight at 0.5 bar
Norms and certifications :
- ACS
Alternatives and options :
For desalination applications:
- Body: A351 CF8M, ASTM A 890 GR5A Super duplex
- Plate: A351 CF8M, ASTM A 890 GR5A Super duplex
- Shaft: 254 SMO
- Spring: Inconel 625