forged steel Ball Valve

Brand Name	chengyi		Place of Origin	China

Zhejiang Chengyi Valve Co., Ltd is one professional manufacturer of many kinds of valves such as high pressure valves such as ball valve, gate valve, check valve, globe valve as well as butterfly valve, strainers, flanges and the specials valves according to custom's requirement.

Our company has got the certificates of ISO 9001: 2000, API 6D, API 607 and CE.
With superior quality ensured, our valves are extensively used in the industries of oil refining, chemical fiber, chemical engineering, power station, chemical fertilizer and medicine. Our products have been exported to United States, Germany, France, Italy, Morocco, Czech Republic, Singapore, Brazil and Qatar and so on.

Trunnion ball valves are suitable for use on various kinds of pipelines of Class 150~Class 2500, PN16~PN420, JIS10K~JIS20K to cut off or turn on the pipeline medium, of which the operation types include worm gear, manual, pneumatic or electric actuators, being in general of flange connection, and butt welding ends connection as well.


Design & manufacture: API 6D\API 608\ASME B16.34\ANSI/AWWA C507\MSS SP-72\BS 5351\BS 6364\BFCI 70-2\ISO 5211\NACE MR0175.

Connection ends: ASME B16.5\ASME B16.47\API 605\MSS SP-44\ISO 7005-1\JIS B2238\BS 12627\ASME B16.25\ASME B16.11\BS 12760.

Face to face dimension: ASME B16.10\ISO 5752\BS 558\BS 12982

Testing & inspection: API 598\API 6D\API 607\API 6FA\BS 6755\BS 12569\MSS SP-82\MSS SP-61

Normal pressure or rating: Class 150 ~ Class 2500\JIS 10K ~ 20K\PN 10 ~ PN 420

Normal diameter or bore: NPS4~NPS48\DN50~DN1200

Applicable temperature: -196 degree ~540 degree

Operation type: Manual, worm gear, pneumatic, electric