Adjustable Choke Valve – API 6A / API 16C
DEENPU Adjustable Choke Valve provides precise, repeatable flow and pressure control in well-testing, choke-and-kill, and production service. Designed to API Spec 6A and API Spec 16C, the valve uses a hardened needle-and-seat or cage-type trim to regulate flow rates under high differential pressure while resisting erosion from sand-laden or corrosive fluids.
Available with manual handwheel, hydraulic, or electric actuation, each choke is fitted with tungsten carbide or ceramic trim components for maximum service life. Positive (fixed-bean) versions and interchangeable trim kits are also offered, allowing one valve body to cover multiple flow coefficients.
Technical Specifications
| Parameter | Specification |
|---|---|
| Design Standard | API Spec 6A / API Spec 16C |
| Nominal Sizes | 2-1/16 inch, 3-1/8 inch, 4-1/16 inch |
| Working Pressure | 5,000 / 10,000 / 15,000 / 20,000 PSI |
| Trim Type | Needle & seat (adjustable) / cage / positive bean |
| Trim Material | Tungsten carbide (standard) / ceramic / stellite |
| End Connections | API 6A flanged, studded, or threaded; union (Fig 602/1002/1502) |
| Actuation | Manual handwheel / hydraulic / electric |
| Material Class | AA, BB, CC, DD, EE, FF, HH |
| Temperature Class | L, P, R, S, T, U, V |
| PSL / PR | PSL1 – PSL3 / PR1 – PR2 |
| Flow Characteristic | Linear or equal-percentage (trim dependent) |
Key Features
- Tungsten carbide needle and seat – superior erosion resistance in sandy service
- Replaceable trim kits – one body covers multiple Cv ranges
- Precise throttling with graduated position indicator (0–100%)
- Non-rotating stem tip minimizes seat galling during fine adjustment
- Metal-to-metal body-bonnet seal; no elastomers in pressure boundary
- Hydraulic or electric actuator packages with position feedback for remote operation
- Interchangeable with major OEM choke valves (Cameron H2, FMC, etc.)
Applications
- Well testing and flowback – controlled drawdown of reservoir pressure
- Choke and kill manifolds – well-control circulation per API 16C
- Production manifolds – sustained flow-rate regulation
- Gas lift and injection well service
- HPHT and sour (H2S/CO2) environments with appropriate material class
Ordering Information
Please specify: nominal size, working pressure, end connection type, trim type and material, actuation method, material class, and required PSL/PR level. Spare trim kits (needle, seat, stem packing) are stocked for fast delivery.
Contact DEENPU for Orders & Technical Support
Email: SALES@DEENPU-MACHINERY.COM
WhatsApp: +86 158 0628 4962


