Lianggong Valve Group Co., Ltd.

Our company China Lianggong Valve Group Co., Ltd 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.

Lianggong's registration capital is 258 million CNY, with 9 sub-companies that are fully controlled. Valve's sizes can be DN10-5000 and 1/2" ~ 80", pressure from 0.6 to 42.0 MPa and 150 lb to 2500 lb, temperature ranges from -196º C to 1350º C. 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. Its products are reliable in quality and stable in performance and are highly praised by users.

Production Plants & Equipment

- Area 199800

- 400+ CNC/NC lathes

- The annual total value of out-put 358 million USD(1.5 Billion CNY)

Employee Info

- Over 1200 employees overall

- 15 senior engineers

- 55 engineers

- 10 QC engineers

- 8 after-service engineers

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, Solid works, FEA (Finite Element Analysis)

- 37 patents (5 for innovation, 32 for utility models)