Non-Return Valve (Soft Sealing type)

DN 50 … 200
PN 10 & PN 16
Field of application: Back flow prevention in water supplies, water treatment, waste water, irrigation, dams, pumping stations, industries, power plants and etc. It can be used for fluids such as drinking water, waste water, oil and etc. up to 70°C.

Features:
- Flanges: according to DIN 2501
- Face to face: according to DIN 3202 – F6
- Hydrostatic test pressure: according to DIN EN 12266-1
- Corrosion protection: Completely coated with blue color (RAL 5005) electro -static epoxy powder coating according to DIN 30677-T2
- Directly sealing on body
- Simply reverse disc and ability to use disc seal on both sides

Materials:
- Body and Bonnet: Cast Iron DIN 1691 (GG25)
- Disc: Ductile Cast Iron DIN 1693 (GGG40) Core with vulcanized rubber coating of EPDM
- Stem: Stainless steel (X20Cr13)

Alternatives:
- Disc lifting device
- Inserted seat ring of bronz
- Elastometric materials of NBR and Silicon for higher temperatures
- Drainage plug

 
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Heev  afras ab co. - Bisim road - Beside cement factory railway bridge - Nazarabad to abeyek old road - Alborz - Iran