Description
self-operated after-valve pressure regulator is composed of the control valve, actuator and a spring used for pressure setting. It is suitable for controlling after-valve pressure in the pipes of non-corrosive liquids, gases and vapors. When the after-valve pressure rises, the control valve is closed.
Trim features;
Trim features: | cage guided, balanced trim |
Body type: | straight-through type |
Bonnet type: | standard type |
Flow characteristic: | quick open |
Size: | DN15-300(1/2”-12”) |
Pressure class: | PN1.6、4.0Mpa(ANSI 150、300LB) |
Leakage class: | ASME B16.104 Ⅴ(soft seal) ASME B16.104 Ⅳ(hard seal) |
Pipe connection type: | flange type |
Set value error: | ±8% |
Applicable temperature range: | -30C° ~ 250C° |
Actuator type: | diaphragm actuator(self-operated) piston actuator(self-operated) |