Plug valve PVS 782

electropneumaticpilotfor gas

PVS 782 PVS type slam shut valves are pilot-operated relief valves in which the opening and the closing of the main plug is controlled by a pilot device which is very sensitive to the variations of the in-line pressures. The main features of such type of slam shut valve are the following: • Very high accuracy and rapidity of intervention (only 2% pressure); • Perfect seal up to pressures very close to the setpoint (contrary to what happens for the spring valves, the force on the plug in this slam shut valve increases when approaching the setpoint); • High outflow rate; • Reduced dimensions; FIELD OF APPLICATION • Non-corrosive fluids: (air, oxygen, nitrogen, helium, hydrogen, methane, propane, butane, etc.) • Intervention range : 1.5÷ 43 bar • Size DN= 1" - 1" 1/2 - 2" - 2" 1/2 - 3" - 4" - 6" - 8". • Flanging: ANSI 150-ANSI 300-ANSI 600, UNI PN 16, DIN PN 16 Functional features:* ¢ Maximum inlet pressure: 102 bar ¢ Opening start pressure: 10% max ¢ Minimum ambient temperature: Up to -20°C ¢ Maximum ambient temperature: Up to + 60°C ¢ Inlet gas temperature: Up to -20°C + 60°C Design features: ¢ DN Nominal dimensions: 25 (1”); 50 (2”); 80 (3”); 100 (4”); 150 (6”); 200 (8”); ¢ Flanged connections: Class 150, 300, 600 according to PN16, according to ISO 7005 Materials: ** ¢ Body: Steel ASTM A216 WCB for class 150 Pn 16/25 Steel ASTM A352 LCC for class 300 e 600 ¢ Valve seat: Stainless steel ¢ Plug: Steel ASTM A350LF2 ¢ Sealing ring: Viton ¢ Connection fittings: In zinc-plated carbon steel according to DIN 2353; Stainless steel on request