Product Categories
Gestra DISCO Non-Return Valve, RK41
Additional information
| Material Body | Cast iron, Special brass |
|---|---|
| Inner Parts | Chromium steel, Nodular iron, Stainless steel, Steel |
| Seat Sealing | EPDM, FPM, Metal to metal |
GESTRA DISCO Non-return valve RK 41 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
- Spring for different opening pressures available
- Opening pressure 5 mbar for DN 15 – DN100; 10 mbar for DN 125 – DN 200
Nominal size:
DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100,
DN 125, DN 150, DN200
Pressure rating:
PN 6, PN 10, PN 16
End connections:
DIN/EN
Materials:
DN 15-100:
Body, Seat, Guide ribs: Special brass CW 710 R
Disc, Control spring, Spring: Stainless steel 1.4571
DN 125 – DN200:
Body, Guiding: Cast iron EN-JL 1040
Spring: Stainless steel 1.4571
Cone, Adapter: Nodular cast iron EN-GJS-400-15
Guiding: Steel UZSt37-2
Casing: Chromium steel X5CrNi18-10
Standard:
Metal to metal
Optional:
Soft sealing EPDM or FPM
