Product Parameter:
 Nominal Diameter: DN25 ~ DN200 Welded connections;Threaded connections DN20 ~ DN50
 Pressure rating: 600LB
 Medium temperature (℃): -40 ~ +232 
 Flow characteristics: equal percentage, linear, quick opening
 Inherent adjustable ratio: 50:1
 Leak Standard: IEC 60534-4 Ⅳ grade
 Maximum source air pressure (MPa): 0.35
 Spring Range (kPa): 20 ~ 100,40 ~ 200
 Material: WCB CF8 CF8M CF3M
Application:
The product has outstanding advantages including reliable work, wide adjustable range, stable operation, simple calibration, small valve leakage and interchangeable parts within the valve. It is widely used in the industrial fields of petroleum, chemical, power station and other automatic control.