API 6A Positive Choke for Wellhead Oil & Gas Control
Product Description
API 6A Positive Choke, also named Fixed Choke, is widely used on oil & gas wellhead, Christmas tree and choke manifold for constant flow and pressure regulation.
Unlike adjustable choke valves, it cannot change flow area during operation. Flow control is realized by replacing choke beans with different bore diameters. It is applicable to onshore and offshore oil & gas production under high-pressure, sand-laden and corrosive medium conditions.
Product Features
- Flow control is achieved by replacing choke beans of different bore sizes.
- Choke beans are manufactured from ceramic or cemented carbide, offering excellent erosion resistance and corrosion resistance.
- Bonnet adopts union connection, supporting quick and convenient choke bean replacement.
- Forged alloy steel valve body, high structural strength and reliable pressure resistance.
- Complies with API 6A standard, optional anti-sulfur configuration per NACE MR0175.
- RTJ flange connection ensures stable sealing under high-pressure working conditions.
Product Specifications
| Parameter | Specification |
|---|---|
| Design Standard | API 6A |
| Working Pressure |
2M,3M,5M,10M,105M |
| Nominal Size |
1-13/16，2-1/16，2-9/16，3-1/8，4-1/16 |
| Material Class |
AA,BB,CC,DD,EE,FF |
| Temperature Class | U, Y |
| End Connection | RTJ Flange |
| Service Option | NACE MR0175 H₂S resistant service |
| Throttling Component | Interchangeable ceramic / cemented carbide choke bean |
| Bonnet Connection | Union connection |