Choke Valve
Choke Valve | High-Performance Choke Valves for Oil & Gas Production
Product Description
The wellhead chokes are used to limit production rates for regulations, protect surface equipment from slugging, avoid sand problems due to high drawdown, and control flow rate to avoid water or gas coning.
Types
Choke valves are supplied in two types: Positive and Adjustable.
Designed as per API6A, API 16C, NACE MR0175.
Structure type: needle, barrel, cage,orifice and wedge；
Working pressure: 3000psi,5000psi, 10000psi, 15000psi
Nominal bore: 2 1/16",2 9/16",3 1/16" 3 1/8”,4 1/16
Positive Choke Valve
Positive chokes allow external adjustment in orifice
size 5/64" through 48/64" in 1/64" increments
Adjustable Choke Valve
Adjustable chokes Indicator sleeve reveals orifice size in 1/64"increments needed for conversion to an equivalent positive choke size
Needle type Choke Valve
Mainly used for Wellhead Christmas Tree
The valve core and choke coil are made of high wear-resistant hard alloy, which can resist corrosion and corrosion for a long time.
Open indicator and safety lock release device
Equipped with a pressure relief valve
JFK needle type throttle valve and JFG positive type throttle valve are interchangeable on the valve body of the same size.
Cartridge Choke Valve
Used for choke and kill header to control casing pressure during drilling operations.
Convenient flow adjustment and stable flow.
The stem seal is made of special materials, with good chemical stability and corrosion resistance.
Barrel gate, the annular gap between the gate and the valve seat, the inlet and the outlet are always connected, mainly used for throttling manifolds or other high-pressure pipelines
Throttle type Choke Valve
Mainly suitable for drilling, fracturing, mud circulation and onshore high pressure gas injection/production. During the closing process, the pressure difference between the inlet and the outlet pushes the two holes tightly towards each other for sealing and cutting.
If the pressure changes suddenly, the valve can be automatically closed by preset high and low pressure sensors.
Equipped with upper and lower orifices. The opening of the orifice can be controlled by rotating the hand wheel. The orifice plate uses cemented carbide to increase corrosion resistance and corrosion resistance. This valve can be used as a shut-off valve.
Allows a smooth throttle curve.
The inner hole of the outlet has an extended wear-resistant bushing to extend the service life.
The pipe head adapter on the outlet can be replaced according to different pressure conditions.
The stem seal is made of special materials, which can provide good chemical stability and corrosion resistance for the medium.
Cage Choke Valve
The cage design allows fluid to flow along the centerline of the cage, avoiding corrosion and corrosion of choke components and reducing noise.
The choke coil components are made of tungsten carbide carbide to provide a wide choke coil, low noise and excellent corrosion resistance.
Metal to metal seal, easy to maintain
The annular space helps reduce corrosion to the human body.
Low on/off torque, stable operation
Convenient flow adjustment and stable flow curve.
FAQs
What is a Wellhead Choke Valve?
Choke valves for oil field heaters, well site separators and other oil and gas equipmentare similar to positive Choke valves. Instead of the valve cover assembly, it is equipped with a plug assembly and an adjustable rising valve stem that can be placed in the bean. In this way, the operator can adjust the pressure and flow according to the process requirements. Adjustable flow valves usually have manual or automatic stem operators, which are more common due to their flexibility.
How does a wellhead choke valve work?
By restricting the flow of air into the throat of the carburetor, the choke valve reduces the pressure inside the throat, which causes a proportionally-greater amount of fuel to be pushed from the main jet into the combustion chamber during cold-running operation.
What is a wellhead choke used for?
Wellhead chokes are used to limit production rates for regulations, protect surface equipment from slugging, avoid sand problems due to high drawdown, and control flow rate to avoid water or gas coning. Two types of wellhead chokes are used. They are (1) positive (fixed) chokes and (2) adjustable chokes.
Related Inquiries
What is the Difference Between Choke Valve and Speed ControlValve?
Do you know the Installation and Maintenance of the Choke Valve?
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