Pneumatic Trunnion Forged Ball Valve Supplier in Angola

Automated high-pressure pipelines require valves that provide dependable shut-off, low operating torque, and long service life. African Valve supplies Pneumatic Trunnion Forged Ball Valves for projects across Angola where remote operation and reliable sealing are essential. These valves are widely used in oil & gas, petrochemical, mining, power generation, chemical processing, marine, water treatment, and steel industries.

Why Use a Pneumatic Trunnion Forged Ball Valve?

• Forged body construction provides excellent mechanical strength.

• Trunnion-mounted ball design reduces operating torque.

• Suitable for high-pressure and large-diameter pipelines.

• Delivers reliable shut-off performance.

• Supports automated operation with pneumatic actuators.

• Available with soft seats or metal seats depending on service conditions.

• Suitable for frequent opening and closing cycles.

• Designed for critical isolation and emergency shutdown applications.

How Does It Work?

The ball is supported by upper and lower trunnions, which keep it fixed in position. Under pressure, the seats move towards the ball to achieve tight sealing. A pneumatic actuator uses compressed air to rotate the ball through 90°, allowing fast opening and closing without manual intervention.

Features

• Forged steel body construction.

• Trunnion-mounted ball design.

• Full bore and reduced bore options.

• Double acting or spring return actuator.

• Fire-safe construction.

• Blowout-proof stem.

• Anti-static device.

• Double block and bleed arrangement.

• Emergency sealant injection.

• Cavity pressure relief system.

• Low-emission graphite stem packing.

• ISO 5211 mounting platform.

• Optional accessories:

• Solenoid valve

• Air filter regulator

• Limit switch box

• Positioner

• Manual override

Materials Available

Body Materials

• Carbon Steel ASTM A105

• Low Temperature Carbon Steel LF2

• Stainless Steel F304, F316

• Duplex Stainless Steel F51

• Super Duplex Stainless Steel F53, F55

• Alloy Steel

• Monel

• Inconel

• Hastelloy

Ball Materials

• Stainless Steel

• Duplex Stainless Steel

• Monel

• Inconel

Seat Materials

• PTFE

• RPTFE

Sealing Materials

• Flexible Graphite

• Graphite Gaskets

Technical Specifications

Applications

These valves are widely used in:

• Oil & Gas production and transmission

• Petrochemical plants

• Refineries

• Water and wastewater treatment facilities

• Chemical processing units

• Power generation plants

• Mining operations

• Marine systems

• Steel and metal industries

• Tank farms and pipeline networks

Why Choose African Valve?

• Complete valve and pneumatic actuator assemblies.

• API-compliant products with international standards.

• Hydrostatic and seat leakage testing before dispatch.

• Material traceability and inspection documentation available.

• Technical support for valve selection and actuator sizing.

• Reliable solutions for demanding industrial applications.

Designed for critical pipeline applications, these valves combine high mechanical strength with reliable sealing and efficient operation. Complete documentation, inspection records, and technical assistance help ensure safe and dependable performance throughout the service life.