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API 6A ANGLE VALVE ACTUATOR 3.1/16"-10K HYD. DRILLING CHOKE ,ORIFICE CONTROL VALVE
SWACO 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 inlet and outlet,as closing,can press both of the plates fast together so as to put into effect of sealing cutting,especially in the case that the pressure suddenly rises or falls,the preset sign rate of high/low pressure senor can be helpful for automatic closing/shut so
as to avoid heavy accident.It is outstanding advantage that it has long working life and ability of erosion/corrosion resistance in comparing with other choke valves.
Nominal bore diameter | 1 13/16"~4 1/16" | Product specification level | PSL3,PSL3G |
Operating pressure | 2000~15000psi | Performance requirement level | PR1,PR2 |
Value opening | 1",1 13/16",2",2 1/2" | Product standards | API SPEC 6A |
Product material grade | AA,BB,CC,DD,EE,FF,HH | Working media | Oil,gas,killing fluid or water |
Tempreture level | K,L,P,R,S,T,U | Type of connection | Flanged or union-connected |
1. Choke angle actuator

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