API 6A /Wellhead/valve/Choke Valve/Orifice Choke Valve

Orifice Choke Valve Orifice choke valve is molded of two pieces of special carbon tungsten plates with rather ability of erosion resistance, one of which rotates to alter the concentricity between the upper orifice and lower orifice of two plates so as to adjust the flow-rate of fluid or gas. The valve is used for manifold such as drilling, fracture, mud circuit ,ground high pressure gas injection /production, it has a outstanding feature that the pressure difference between