API 6A High-Pressure Adjustable & Positive Choke Valves (Needle & Cage Type)

  • Continuous fluid throttling under immense differential pressure results in rapid trim destruction and uncontrollable flow fluctuations.
  • Engineered with heavy-duty tungsten carbide needle and cage trims that provide precise drawdown management and exceptional cavitation resistance.
  • Essential for wellhead choke manifolds, production trees, high-pressure flowback testing, and fast-track MRO field valve replacement.
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Main Advantage & Solution

  • High-velocity fluid cavitation and aggressive sand erosion that quickly destroys internal throttling trims.
    Solution: The valve trims (needle, seat, or cage sleeve) are crafted entirely from solid tungsten carbide components to extend service life under heavy-sand flowback.
  • Inaccurate manual adjustment leading to unstable wellhead backpressure regulation
    Solution: High-resolution micrometric handwheels or fast-acting hydraulic stepping actuators provide micro-level flow coefficient calibration.

Application Scenarios

  • Wellhead & Christmas Tree Throttling: Fine-tuned surface pressure control and flowback throttling.
  • Choke & Kill Manifolds: Critical pressure management during managed pressure drilling (MPD) and well control.
  • Rig MRO & Spare Parts Replacement: Direct drop-in replacements for worn choke beans, needle trims, and check valve seats.

Technical Specifications

SpecificationDetails
Pressure Rating2,000 Psi to 25,000 Psi (13.8MPa – 172.5MPa)
Nominal Bore Sizes1-13/16” to 7-1/16”
Valve TypesAdjustable Choke Valves (Needle/Cage Type), Positive Choke Valves (Fixed Bean Type), Lift Check Valves.
Actuation OptionsManual (Handwheel), Hydraulic, Pneumatic, Electric
Product Specification LevelPSL 1 ~ PSL 4
Material ClassAA, BB, CC, DD, EE, FF, HH (Severe Sour Service)
Performance RequirementPR1 ~ PR2
Temperature ClassK.X (-60°C to 180°C)

Our Advantages

Factory Strength

As a premium API 6A, 16A, and 16C certified manufacturing powerhouse, our facilities are equipped with heavy CNC machining clusters and automated anti-corrosion alloy cladding systems, fully backed by an in-house CNAS laboratory capable of up to 300MPa pressure tracking and internationally witnessed PR2 gas performance testing.

Customization Service

Tailored bore sizes, custom end connections (flanged, studded, hammer union), OEM trim interchangeability, and fast-dispatch MRO repair kits.

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