Bilwe Cast inching valve spring model, A27W manufacturers, imported iron threaded inching valve effect, imported iron threaded valve spring principle, GB cast iron threaded valve parameters, 
Details: A27W-10T spring safety valve 
Apply within the nominal range 1MPa, operating temperature ≤ 200 ° C, 
Medium is air, steam or water pressure vessels, industrial equipment and piping, as to prevent an overpressure protection device. 
 
Inching valve parameters: 
Pressure in MPa 
 
Nominal pressure PN 
1 
Strength test pressure P s 
1.5 
Sealing test pressure 
0.1 ~ 0.2> 0.2 ~ 0.3 
> 0.3 ~ 0.7> 0.7 ~ 1.0 
Use Media 
Air, steam, water, 
Temperature ° C 
≤ 200 
Opening height h 
≥ 1/20do