SB 770 is a shut-off valve with automatic operation and manual resetting, suitable for transport and distribution networks of air, natural gases, LPG, carbon dioxide (CO2) and other non-corrosive gaseous media. SB 770 is a safety device which has the role of preventing an increase or decrease in the working pressure outside the operating range for which it was designed.
Reference standard: EN 14382 (DIN 3381)
CE certificate according to PED 97/23/EC
| MODEL | SB 770 |
|---|---|
| TECHNICAL CHARACTERISTICS |
Maximum allowable pressure: 16/20, 40/50, 100 bar Intervention for maximum pressure: 0,04 ÷ 84 bar Intervention for minimum pressure: 0,01 ÷ 62 bar Intervention accuracy class (AG): - minimum up to 2,5% - maximum up to 1% (depending on the control pressure) |
| CONNECTION TYPE |
Equal flanges: PN 16, PN 20/ANSI Class 150 PN 25, PN 40, PN 50/ANSI Class 300 PN 64, PN 110/ANSI Class 600 Nominal diameter: DN 25 ÷ DN 400 |
| OPERATING CONDITIONS |
Ambient temperature: -30°C ÷ +80°C Working fluid temperature: -20°C ÷ +60°C |
| WORKING MEDIUM | Natural gas and other non-corrosive gases |
