1、 Specifications and brief description

Specification: NPS 2-60 (DN 50-1500), Class 150-1500 (PN 16-250)

Description: T30 forged steel fully welded four seat trunnion ball valve for pipeline, T31 forged steel split four seat trunnion ball valve

2、 Detailed information

Product Overview

The four seats sealing structure is our company's original product, achieving the sealing effect of one valve surpassing two valves. It has the characteristics of compact structure, reliable sealing, low torque, and free from daily maintenance, and plays a role in guiding/cutting off pipelines. It is mainly used for the inlet and outlet of oil and gas long-distance pipeline valve chambers, receiving and sending ball barrels, or other key positions. It is an ideal ball valve series for high sealing requirements.

Design and inspection can be carried out according to standards such as API 6D, GB/T 30818, GB/T 19672, etc. Fire safety meets the requirements of API 607/API 6FA and has passed test certification. NACE anti-corrosion and sulfur resistance are optional, and ISO 15848 fugitive emission is optional.

main features 

① Diameter reduction or reduction

② Four valve seat sealing structure, reliable sealing

③ Fireproof, anti-static, and anti-blowout stem design

④ Automatic pressure relief protection in the middle chamber

⑤ The valve seat can be combined in various forms of soft and hard sealing

⑥ Fully open or fully closed double cut-off discharge (DBB)

⑦ Valve seat and valve stem emergency injection system