At the middle of 1980s, the group company cooperated with scientific research institutions such as Sichuan Petroleum Survey & Design Institute to develop and manufacture the product series, including through conduit slab gate valves, orifice type pressure measuring equipments for nature gas treatment, transportation and distribution. After devoting the marketing, because of the reasonable design, excellent performance, and good quality, the products made by our company has been used to main natural gas collection, transportation pipeline, and treatment station in Sichuan district, the market of our products has been enlarged rapidly and the products has been used to national mayor oil & gas company, and its usage range has been enlarged to petroleum, finished oil, crude oil, waste water, etc. The suitable temperature range of the valves has been enlarged from low temperature to high temperature.
In the year of 1993, the valve manufacturing scale was augmented increasingly, with nice market foreground, valve branch plant became to valve plant to be professionally charged of design and manufacturer of valve products, special processing treatment and sealing parts for aviation rubber, etc. through group manufacturing lines. In order to be seasoned with marketing and improved our quality management level, the valve branch plant joined the China Valve Industries Association in 1996, and been awarded the ISO9001 certificate issued by Det Norske Veritas (DNV) and passed the replacement of version of DNV ISO9001:2000 Quality System in 2005. Except for this point, based on the quality intention of our factory –‘Zero Defect, Excellent Quality’, our factory acquired the ‘Manufacturer License of Special Equipment’ issued by General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China in January 2003 and acquired ‘Certificate of Conformity of Occupational Health and Safety Management System Certification’ issued by CNAS in 2007. In 2008, the company will be awarded API 6D certificate (License No.: 6D-0703).
In Dec.2004, the valve branch plant renamed to Chengdu Holy Valve & Complete Equipment Co., Ltd.
