·Suitable for special conditions with severe scouring and corrosion
·Full diameter special roller as the throttling element, no pressure loss, no blockage
·The replacement of rollers is convenient and fast, suitable for various complex working conditions
Nominal diameter:DN 25～DN 500
Nominal pressure:PN 6、10、16
Material of body:QT450、WCB、CF8、 etc.
Flow characteristic:linear, quick opening
Operating temperature:-35℃～130 ℃
Connection type:flange
Actuator:pneumatic piston actuator、electric actuator、hand wheel
