API 6A Valve
CDI OIL & GAS provides API 6A valves for high-pressure drilling, well testing, and production applications, available in multiple pressure ratings and bore sizes, configurable according to pressure class, material, and temperature, including gate, choke, and check valves suitable for wellhead systems, surface manifolds, pressure testing, and production operations.
An API 6A valve is a high-pressure valve designed and manufactured in accordance with API Spec 6A, the international standard developed by the American Petroleum Institute (API) for wellhead and Christmas tree equipment. These valves are specifically engineered to control, isolate, and regulate the flow of oil, gas, water, and other production fluids in upstream oil and gas operations. Common types include the API 6A gate valve, choke valve, and check valve, all of which are built to operate safely under demanding conditions such as high pressure, high temperature (HPHT), and sour service environments containing hydrogen sulfide (H₂S).
API 6A valves are widely used in wellhead systems, Christmas tree assemblies, choke and kill manifolds, drilling equipment, workover units, and production facilities. Whether installed on an onshore well, offshore platform, shale gas field, or high-pressure test system, these valves provide dependable shutoff and pressure isolation to protect personnel, equipment, and the environment.
Explore Our API 6A Valve Range
What Are the Main Applications of API 6A Valves?
API 6A valves are engineered for the most demanding upstream oil and gas environments where safe pressure containment, reliable flow control, and long service life are critical.
From conventional onshore oilfields to deepwater offshore platforms, API 6A valves provide dependable shutoff, pressure isolation, and operational safety throughout the well lifecycle.
High-Pressure Wellheads & Christmas Trees
Focus: Master and wing valve isolation for onshore/offshore production trees.
MRO & Feature: Bi-directional metal-to-metal sealing up to 20,000Psi; drop-in replacements for standard Cameron/McEvoy style gate & seat assemblies.
Severe Sour Service (H2S/CO2 Environments)
Focus: Corrosive upstream production and high-sulfur gas field operations.
MRO & Feature: NACE MR0175 / ISO 15156 compliance (Material Classes DD–HH) with full CRA (Inconel 625) cladding on pressure-wetted surfaces.
Rig Overhaul & Field MRO Maintenance
Focus: Scheduled turnarounds, rig refurbishments, and emergency field spare supply.
MRO & Feature: OEM-interchangeable replacement trims, stems, packing sets, and flange gaskets with 100% MTR traceability and fast global dispatch.
High-Rate Hydraulic Fracturing & Sand Flowback
Focus: High-volume proppant slurries and abrasive flowback fluids under extreme pressures.
MRO & Feature: Anti-sand engineered frac gate valves (5,000- 25,000 psi) with erosion-resistant hardfacing to prevent seat washouts.
Managed Pressure Drilling (MPD) & Choke Manifolds
Focus: Continuous pressure regulation during drilling, flowback, and well control operations.
MRO & Feature: Rapid online trim changes (needle/cage type) and solid tungsten carbide choke beans designed for rapid field maintenance.
Surface Safety & Automated Shut-Down (ESD)
Focus: Emergency well control and automated line isolation on unmanned platforms or high-risk wells.
MRO & Feature: Hydraulic and pneumatic spring-return Surface Safety Valves (SSVs) with fail-safe closure consoles and certified actuation kits.
Why Choose Our API 6A Valves
Engineered to meet rigid API Spec 6A standards while delivering fast-track supply for complete valve assemblies, custom trims, and OEM-interchangeable MRO repair kits.
API Spec 6A Compliance
Full conformance with API Spec 6A (PSL 1–4, PR1–2) for dependable pressure containment in severe H2S and CO2 sour environments.
HPHT Pressure Coverage (2,000 – 25,000 Psi)
Extensive supply capability covering high-pressure wellheads, choke manifolds, and extreme fracturing operations up to 25,000 Psi (172.5MPa).
Anti-Erosion Hardfacing & CRA Cladding
Tungsten carbide and Stellite hardfacing on gates, seats, and choke trims, with optional Inconel 625 internal CRA cladding for long-life slurry/sand fluid handling.
OEM-Interchangeable MRO Spare Kits
Fast-track supply of direct-fit gate and seat assemblies, stem packings, choke beans, and seal rings (compatible with Cameron FC/FL style profiles) to eliminate field NPT
100% Traceability & Pressure Testing
Every valve and major trim component undergoes hydrostatic testing, shell/seat leakage checks, NDT inspection (MPI/UT)
Flexible Actuation & Custom Configurations
Available in manual handwheel, double-acting hydraulic, and fail-safe spring-return pneumatic configurations tailored to onshore and offshore field layouts.
