API 6A Standard Swing Lift Type Check Valve Anti Corrosion 3 1/8" 5000psi

Product Overview

1. The API 6A swing lift type check valve is designed to provide one-way flow control and prevent reverse flow in high-pressure oil and gas applications. With a 3 1/8" bore size and 5000psi working pressure, it is widely used in wellheads, tubing heads, casing heads, and manifolds. Unlike conventional swing check valves, the lift design ensures a quick response to flow reversal, enhancing system safety. Its anti-corrosion construction and hard-faced sealing surfaces offer excellent durability in sour gas and other harsh environments.

Key Features

1. One-way flow design to effectively prevent backflow

2. Swing-lift mechanism for fast closure under reverse pressure

3. Rated to 5000psi, suitable for high-pressure oilfield service

4. Anti-corrosion materials for sour gas (H2S) and aggressive media

5. Hard-faced sealing surfaces for long-term wear resistance

6. Complies with API 6A and NACE MR0175 standards

Advantages

1. Forged body structure ensures durability under high-pressure drilling conditions

2. Field-proven sealing technology to minimize fluid leakage

3. Multiple end connection types for diverse mud line configurations

4. Cost-effective manual operation design with easy maintenance

5. Suitable for both standard and sour gas service

Applications

1. High-pressure mud circulation systems

2. Drilling rigs and mud manifolds

3. Wellhead service lines requiring manual shut-off

4. Fluid control in choke and kill systems

Available Models

1. Gate Valves: Manual, Hydraulic, Slab Gate, Expanding Gate, API 6A Standard Designs
2. Check Valves: Swing, Lift, Piston, API 6D Compliant Options
3. Mud Valves: Manual Operation, High-Pressure Types (2"–12", up to 15000psi)
4. End Connections: Flanged, Threaded, Butt Weld, Hammer Union, API Hub
5. Material Classes: AA / BB / CC / DD / EE / FF for standard and sour service