Casting Trunnion Ball Valve Manufacturer in Africa

African Valve is a well-known Casting Trunnion Ball Valve Manufacturer in Africa, manufacturing and supplying valves designed for positive shut-off in medium and high-pressure pipeline systems. These valves feature a cast steel body with a trunnion-supported ball that reduces operating torque while maintaining stable sealing under demanding service conditions. They are suitable for handling liquids, gases, steam, hydrocarbons, and other industrial process media. Available in multiple material grades, pressure classes, end connections, and operating configurations, Casting Trunnion Ball Valves are supplied to projects across Nigeria, Egypt, South Africa, Kenya, Ghana, and other African markets, as well as international export destinations.

Why Is a Casting Trunnion Ball Valve Used?

The Casting Trunnion Ball Valve is designed for applications involving high operating pressures, large pipeline sizes, and frequent valve operation. Unlike a floating ball design, the ball is mechanically supported by upper and lower trunnions, preventing it from shifting under line pressure. The valve operates by rotating the ball through 90 degrees, allowing or stopping the flow of liquids, gases, steam, and other process media. Since the trunnion absorbs most of the operating load, the seats experience less stress and lower operating torque is required even in high-pressure systems. The cast body construction provides excellent structural strength while allowing economical manufacturing in larger sizes. The Casting Trunnion Ball Valve is widely selected for transmission pipelines and industrial process systems where dependable sealing, reduced operating effort, and long service life are required.

Materials & Construction

The valve is manufactured using:

• Carbon Steel – ASTM A216 WCB

• Low Temperature Carbon Steel – ASTM A352 LCB

• Stainless Steel – ASTM A351 CF8 / CF8M

• Duplex Stainless Steel – ASTM A995 Grade 4A

• Super Duplex Stainless Steel – ASTM A995 Grade 5A / Grade 6A

Construction features include:

• Precision cast body construction

• Trunnion-mounted ball design

• Blow-out proof stem

• Spring-loaded seats

• PTFE, RPTFE, PEEK, or Metal Seated options

• Anti-static device

• Fire-safe design available

• Flanged and Butt Weld end connections

• Lever Operated, Gear Operated, Pneumatic Actuated, Hydraulic Actuated, and Electric Actuated options

Technical Specifications

• Size Range: DN50 to DN1200 (2" to 48")

• Pressure Ratings: Class 150, 300, 600, 900, 1500, 2500

• Design Standards: API 6D, API 608, ASME B16.34, ISO 17292

• Face-to-Face: ASME B16.10

• Testing Standards: API 598

• End Connections: Flanged, Butt Weld

• Operation: Lever Operated, Gear Operated, Pneumatic Actuated, Hydraulic Actuated, Electric Actuated

Industrial Applications

Casting Trunnion Ball Valves are commonly installed in:

• Oil & Gas

• Petrochemical

• Chemical Processing

• Power Generation

• Water & Wastewater Treatment

• Mining

• Marine

• Infrastructure Projects

Product Features

• Trunnion-mounted ball minimizes operating torque

• Cast body construction suitable for large-diameter pipelines

• Quarter-turn operation provides quick shut-off

• Spring-loaded seats improve sealing performance

• Available in multiple material grades and pressure classes

• Manufactured according to internationally recognized engineering standards

Manufacturing & Inspection

African Valve manufactures Casting Trunnion Ball Valves according to international engineering standards and customer project specifications. Every valve undergoes dimensional inspection, hydrostatic shell testing, seat leakage testing, and operational verification before dispatch. Material Test Certificates (MTC), inspection reports, and supporting documentation are available to meet engineering, procurement, and project compliance requirements.

Supply Across Africa

African Valve supplies Casting Trunnion Ball Valves to industrial, mining, energy, water infrastructure, and process projects throughout Nigeria, Egypt, South Africa, Kenya, Ghana, and other African markets, as well as international export destinations. Valves are available in multiple material grades, pressure classes, end connections, and operating configurations to meet project-specific operating requirements.