OUWEI DBB Double Ball Valve Specification: NPS 2-48 (DN 50-1200), Class 150-2500 (PN 16-420) Description: T90 forged steel DBB trunnion double ball valve, T91 forged steel DBB floating double ball valve

1、 Specifications and brief description

Specification: NPS 2-48 (DN 50-1200), Class 150-2500 (PN 16-420)

Description: forged steel DBB trunnion double ball valve, forged steel DBB floating double ball valve

2、 Detailed information

Product Overview

The DBB double ball valve adopts a three piece valve body structure or a fully welded valve body structure, which has the characteristics of compact structure, reliable sealing, low torque, no daily maintenance, and convenient maintenance. 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.

Design and inspection can be carried out in accordance with standards such as API 6D, ISO 17292, 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 acid resistance are optional, and ISO 15848 low leakage is optional.

Main features 

① Fireproof, anti-static, and anti-blow out stem structure

② Automatic pressure relief protection in the middle chamber

③ Trunnion ball valve seats can be selected from single piston, double piston (DIB-1), or single double piston (DIB-2)

④ Trunnion ball valve fully open or fully closed double block discharge (DBB)

⑤ Emergency injection system for trunnion ball valve seat and valve stem