Pneumatic Trunnion Casting Ball Valve Supplier in Nigeria

An automated isolation is essential in high-pressure pipelines and critical process systems. African Valve supplies Pneumatic Trunnion Casting Ball Valves for projects across Nigeria where low operating torque, dependable sealing, and remote operation are required. These valves are widely used in oil & gas, petrochemical, chemical processing, water treatment, power generation, mining, marine, and steel industries.

Why Use a Pneumatic Trunnion Casting Ball Valve?

• Trunnion-mounted design reduces operating torque.

• Cast body construction provides strength and durability.

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

• Delivers tight shut-off with low seat wear.

• Pneumatic actuation allows fast and reliable operation.

• Suitable for automated and emergency shutdown systems.

• Available in full bore and reduced bore configurations.

• Designed for continuous industrial service.

How Does It Work?

The ball is supported by upper and lower trunnions, keeping it fixed under pressure. During operation, the seats move towards the ball to provide reliable sealing. A pneumatic actuator rotates the ball by 90° using compressed air, allowing quick opening and closing without manual effort. Double-acting and spring-return actuators are available depending on fail-safe requirements.

Features

• Trunnion-mounted cast body design.

• Double acting or spring return actuator.

• Fire-safe construction.

• Blowout-proof stem.

• Anti-static device.

• Double block and bleed arrangement.

• Emergency sealant injection system.

• Cavity pressure relief.

• Low-emission graphite packing.

• ISO 5211 actuator mounting pad.

• Full bore and reduced bore options.

• Accessories available:

• Solenoid valve

• Air filter regulator

• Limit switch box

• Positioner

• Manual override

Materials Available

Body Materials

• Carbon Steel ASTM A216 WCB

• Low Temperature Carbon Steel LCB

• Stainless Steel CF8, CF8M

• Duplex Stainless Steel

• Super Duplex Stainless Steel

• 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 installed in:

• Oil & Gas production and transmission systems

• Petrochemical plants

• Refineries

• Chemical processing units

• Water and wastewater treatment facilities

• 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 packages.

• Products manufactured according to international standards.

• Hydrostatic and seat leakage testing before dispatch.

• Material traceability and inspection documents available.

• Technical support for actuator sizing and valve selection.

• Reliable solutions for severe-service and high-pressure applications.

African Valve offers automated valve solutions engineered for high-pressure systems requiring dependable shut-off and low operating torque. Every assembly undergoes rigorous testing to provide long-term reliability and operational efficiency.