Wellhead & pressure control

API 6A.Well control systems.

Explore our range of wellhead valves, components and pressure-control assemblies.

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API 6A wellhead valves and pressure-control equipment — API 6A

2,000–20,000 psipressure range

PSL 1–4 / PR 1–2quality levels

10product groups

Confirm working pressure, temperature grade, material class, PSL, PR and operation against the project specification.

CEPAI flanged wellhead gate valve with a cylinder actuator — 01

Wellhead isolation

Standards & serviceAPI 6A

Gate Valve

FC, FL and FLS gate valves with full-bore designs, metal-to-metal sealing and manual or actuated operation.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–13 5/8 in
Temperature range: −60 to 121 °C · K–U
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Valve types: FC, FL, FLS
Operation: Handwheel, gear, actuator

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CEPAI adjustable choke valve with a blue operator — 02

Adjustable flow restriction

Standards & serviceAPI 6A

Adjustable Choke Valve

Cage- and needle-type adjustable chokes for regulating flow, with hard-alloy internals selected for erosion resistance.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–11 in
Temperature range: −60 to 345 °C · K–Y
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Types: Cage, needle

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Red CEPAI positive choke valve with flanged connections — 03

Fixed flow restriction

Standards & serviceAPI 6A

Positive Choke Valve

Positive chokes regulate flow through replaceable throttle nozzles, with hard-alloy choke elements for wear resistance.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–11 in
Temperature range: −60 to 345 °C · K–Y
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Flow adjustment: Replaceable throttle nozzles

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CEPAI globe valve with a silver handwheel and flanged connections — 04

Metal-seated flow control

Standards & serviceAPI 6A

Globe Valve

Rising-stem globe valves with metal-to-metal seat and disc sealing and hard-alloy overlays for erosion resistance.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–13 5/8 in
Temperature range: −60 to 121 °C · K–U
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Design: Rising stem, metal-to-metal sealing

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Red CEPAI swing check valve with bolted cover and flanged ends — 05

Non-return protection

Standards & serviceAPI 6A

Swing Check Valve

Swing check valves with hard-alloy sealing surfaces for dependable non-return duty and wear resistance.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–13 5/8 in
Temperature range: −60 to 345 °C · K–Y
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Sealing: Hard-alloy sealing surfaces

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Compact CEPAI dual plate check valve with flanged connections — 06

Compact non-return design

Standards & serviceAPI 6A

Dual Plate Check Valve

Compact dual-plate check valves with hard-alloy sealing surfaces for high-pressure non-return service.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–11 in
Temperature range: −60 to 345 °C · K–Y
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2

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Yellow CEPAI wellhead trunnion ball valve with a black handwheel — 07

High-pressure quarter-turn isolation

Standards & serviceAPI 6A

Trunnion Mounted Ball Valve

Top-entry trunnion ball valves with blowout-proof stems, fire-safe and anti-static design features and low operating torque.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–11 in
Temperature range: −60 to 345 °C · K–Y
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Construction: Top entry, trunnion mounted

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CEPAI machined wellhead heads, spools, adapters, flanges and crosses — 08

Wellhead connection components

Standards & serviceAPI 6A

Wellhead Parts

Casing and tubing heads, casing and tubing spools, adapters, flanges, crosses and tees for wellhead assemblies.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–30 in
Temperature range: −60 to 345 °C · K–Y
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Working medium: Petroleum, natural gas, slurry; H₂S / CO₂ service

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Complete red CEPAI Christmas-tree assembly with yellow handwheels, shown from the top valves to the base — 09

Complete well control assemblies

Standards & serviceAPI 6A

Wellhead and X-Mas Tree

Wellhead and Christmas-tree systems built around casing heads, tubing spools, tubing heads and control valves, with optional remote safety control.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: Main / outlet bore: 1 13/16–7 1/16 in
Temperature range: −60 to 121 °C · K–U
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Options: Pneumatic / hydraulic safety valves, remote control

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Red CEPAI choke and kill manifold on a skid with blue handwheels — 10

Drilling pressure control

Standards & serviceAPI 16C · API 6A

Choke and Kill Manifold

Choke and kill manifolds for controlling well pressure and routing drilling fluids during choke and kill operations.

Technical specifications

Pressure range: 2,000–20,000 psi
Size: 1 13/16–7 1/16 in
Temperature range: −60 to 345 °C · K–Y
Material classes: AA, BB, CC, DD, EE, FF, HH
Quality levels: PSL 1–4 · PR 1–2
Working medium: Petroleum, natural gas

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Petro Aro

Start with the well specification.

Talk to Petro Aro

Send the pressure, bore size, temperature grade, material class, PSL, PR and required operation.