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China Trunnion Mounted Ball Valve Manufacturers, Suppliers, Factory

Trunnion mounted ball valves manufactured by Chinese supplier Yongyuan are divided into forged steel and cast steel, providing maximum strength and virtually no porosity. Yongyuan Valve integrates the proven sealing technology and the design capablity to tackle different applications. The design, manufacturing, assembly and testing specifications meet API 6D standard. Both flange ends are bolted to oil and gas pipelines.

Our trunnion mounted ball valves are suitable for the petroleum and natural gas industries. Yongyuan has maintained API 6D certification (6D-1242) for more than 10 years.

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Cast Steel Trunnion Mounted Ball Valve

Yongyuan cast steel trunnion mounted ball valves have been pressure-tested before shipment to meet API requirements and used in transmission pipelines, terminals and storage of oil and gas fields. All these valves are in strict accordance with ASTM, API and other standards. The positive stem retention is achieved within the valve body.

Forged Steel Trunnion Mounted Ball Valve

Yongyuan forged steel trunnion mounted ball valve is manufactured to comply with NACE standards. It’s the best choice for pipeline where zero leakage positive shutoff is critical.These valves comply with API 6D, ASME 16.34, and relevant ASTM specifications. The forged steel A105 is chosen for valve body and adapter, fire safe graphite rings is used to protect against external leakage.