1、 Specifications and brief description

Specification: NPS 1/2-60 (DN 15-1500), Class 150-1500 (PN 16-250)

Description: T20 forged steel all welded trunnion ball pipeline ball valve (cylindrical), T21 forged steel all welded trunnion ball pipeline ball valve (short cylindrical or spherical), T22 forged steel all welded floating ball valve, T23 forged steel all welded trunnion ball directly buried ball valve

2、 Detailed information

Product Overview

The fully welded valve body structure is welded using proprietary automatic welding technology. It has the characteristics of compact structure, reliable sealing, low torque, no daily maintenance, and no external leakage of the valve body. It plays a role in guiding/cutting off pipelines and is suitable for media such as oil, gas, and water. It is widely used in oil and natural gas extraction and transportation systems.

The design and inspection comply with standards such as API 6D, ISO 17292, GB/T 30818, GB/T 19672, etc. The fire safety meets the requirements of API 607/API 6FA and has been tested and certified. NACE anti-corrosion and acid resistance are optional, and ISO 15848 low leakage is optional.

Chengdu Chenggao Valve Co., Ltd. has won the first prize in China's mechanical industry science and technology for its fully welded ball valve, and was also awarded the title of one of the top ten outstanding performance products in China's energy equipment in 2017.

main features 

① Diameter reduction or reduction

② Fully welded valve body structure, with independent and proprietary automatic welding technology for welding

③ Fireproof, anti-static, and anti-blow out stem spray

④ Automatic pressure relief protection in the middle chamber

⑤ Buriable extension valve stem

⑥ Trunnion ball valve seats can be selected from single piston, double piston (DIB-1), or single double piston (DIB-2)

⑦ Trunnion ball valve fully open or fully closed double block discharge (DBB)

⑧ Emergency injection system for trunnion ball valve seat and valve stem