Product Categories
Gestra DISCO Non-Return Valve, RK70
Additional information
| Material Body | Cast iron, Hot-pressed brass |
|---|---|
| Inner Parts | Chromium steel, Stainless steel, Steel |
| Seat Sealing | Soft sealing |
GESTRA DISCO Non-return valve RK 70 for flanges, wafer design with short overall length acc. to EN 558-1, Tab. 11, series 49 (K4 building length).
- Installation in any position
- Body centering by spiral ring or rather directly on the body
- Opening pressure: approx. 25 mbar for DN 15 – DN 100, 5 mbar for DN 125 – DN 200
Nominal size:
DN 15 – DN 200
Pressure rating:
PN 6
End connections:
DIN/EN
Materials:
DN 15 – 100:
Body, Seat, Guiding rib: hot-pressed brass CW 617 N
Disc, O-Ring: PPE/EPDM
Control Spring, Closing Spring: Stainless steel 1.4571
DN 125 – 200:
Body, Guiding: Cast iron EN-JL 1040
Cone, Adapter: Polyamid 6
Cover: Chromium steel 1.4301
Guiding: Steel UZSt 37-2
Spring: Stainless steel 1.4571
Sealing: Soft sealing
