Self-operated before-valve pressure regulator valve

Size: DN50-300(1/2”-12”)
PN: PN16,PN25,PN40,ANSI 150~600LB
Body: WCB,CF8,CF8M,CF3M
Pressure setting range:15~50; 40~80; 60~ 100; 80~ 140; 120~ 180; 160~ 220; 200~ 260; 240~ 300; 280 ~ 350; 300~ 400; 380~ 450; 430~ 500; 480~ 560; 540~ 620; 600~ 700; 680~ 800; 780~ 900;880 ~ 1000; 950 ~ 1500; 1000~ 2500
Actuator: diaphragm actuator（self-operated）,piston actuator（self-operated）

Description

self-operated before-valve pressure regulator is composed of the control valve, actuator and a spring used for pressure setting. It is suitable for controlling before-valve pressure in the pipes of non-corrosive liquids, gases and vapors. When the before-valve pressure rises, the control valve is opened.

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）