Choke valves can be classified as follows: Adjustable choke valves and positive choke valves.Comply to API standard

The choke valve, a main Description of Christmas tree, is design to control production rate of the oil well, with working pressure up to 10000psi. Choke valves can be classified as follows: Adjustable choke valves and positive choke valves. By rotating hand wheel to drive the stem, the adjustable choke valve is designed to adjust the effective area available for the flow to accomplish control of production rate. The positive choke valve is design to accomplish control of production rate by changing flow beans.

 DJUSTABLE AND POSITIVE CHOKE VALVE

Main technological parameters
Rated pressure: 2000~15000psi
Working temperature: P U
Working medium: Petroleum & natural gas.
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HYDRAULIC CHOKE VALVE
The hydraulic choke valve is used to be matched with manifold and other assemblies, which is applicable for flow-rate adjustment, that is, to raise or reduce the valve core location is help for alternation of flow-way cross-area and flow-rate control.