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Gestra Non-return Valve, BB-A
Additional information
| Connection Type | Acc. to EN 558-1 |
|---|---|
| Material Body | Stainless steel |
| Inner Parts | Stainless steel |
| Seat Sealing | EPDM, FPM, NBR, PTFE |
GESTRA Non-return valve BB A with short overall length, acc. to EN 558-1, Tab 11, basic range 16 (K3 – builing length).
- Installation in horizontal pipes or rather in vertical pipes with upward flow
- Special spring for downward flow
- Body – Centering directly on the body
- Opening pressure: approx. 7 mbar
Nominal size:
DN 50 – DN 500
Pressure rating:
PN 10, PN 16, PN 25, PN 40
acc. to API 594: PN 63, PN 100, PN 160
End connections:
DIN/EN
Materials:
DN 50 – DN 125:
Body: Stainless steel X2CrNiMo 17-12-2
Flap: Stainless steel X2CrNiMo 17-12-2
DN 150 – DN 500:
Body: Stainless steel 1.4408
Flap: Stainless steel 1.4408
Standard: Metal to metal
Optional: Soft sealing NBR, FPM, PTFE or EPDM
Optional design:
Damping, Special spring, earth connection
