General Industrial Valves
China Lianggong Valve Group was founded in 1989. We design, develop, manufacture, test and sell industry valves, including cast and forged steel / stainless ball valves, gate valves, globe valves, check valves, butterfly valves, elbows, fittings. Valve’s sizes can be DN10-5000 and 1/2″ ~ 80″, pressure from 0.25 to 80.0 MPa and 150 lb to 4500 lb, temperature ranges from -196℃ to 1350℃. It is widely used in power station, nuclear power, petroleum, chemical industry, natural gas, military industry, municipal administration, metallurgy, construction, pharmacy, paper making, coal mine, cement, pollution discharge, environmental protection, energy saving and other industries.
Major Approvals
– API 6D, API 607, API 609, API 600,
– ISO 9001, ISO14001
– OHSAS18001
– CE
Tests & Inspections
– RT, UT, MT, PT
– Valve cryogenic test & high-temperature test
– O-ring AED Test
– Ball valve bending test in simulated pipeline
– Fugitive Emission Test
R & D
– AutoCAD, Solidworks, FEA (Finite Element Analysis)
– 37 patents (5 for innovation, 32 for utility models)
