Rated Pressure

2000psi ~ 15000psi

Nominal Size

1 13/ 16in ~ 4 1/ 16in

Product Specification Level

PSL1 - 3

Material Class

AA - FF

Performance Requirement Level

PR1 - 2

Temperature Class

PU -29 ~ 121 ℃

PFF ( A ), PFFY Manual Flat Gate Valves:

PFF ( A) Manual, Flat, Non-Rising Stem Gate Valves:

2. Choke Valves:
Choke valves are designed in accordance with the requirements of API Spec 6A and API Spec 16C . They are classified as adjustable chokes and positive chokes according to structural features, and classified as manual choke valves and hydraulic choke valves according to working principles. Flow beans for positive chokes, stems for adjustable chokes, valve cores and seats are all made of carbide alloy, featured with corrosion resistance, erosion resistance and reliableness in service.
Adjustable chokes have needle type and barrel type. The former is mainly used in wellhead equipment for mining oil (gas) to control the flow rate of fluids, and the latter is mainly used in choke and kill assembly to control casing pressure of wellbore fluids.

JLK ( Y) Adjustable Chokes:

JLG Positive Chokes:

3. Check Valves:
Designs and productive technological processes for DFF check valves conform to API Spec 6A . They are mainly used in the kill manifold to control kill fluids or other fluids by only permitting fluid flow into the well for the purpose of the kill job and other operations. Backward flow is impossible.

Main Technical Parameters

Rated Pressure
Nominal Size in(mm)

2000psi (14Mpa)

3000psi (21Mpa)

5000psi (35Mpa)

10000psi (70Mpa)

15000psi (105Mpa)

2 1/16(52)

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※

※

※

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2 9/16 (65)

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※

※

※

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3 1/8(80)

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