1、 Specifications and brief description

Specification: NPS1/2-28 (DN15-DN700), Class150 Class1500 (PN16-250)

Description: L10 cast steel top mounted trunnion ball low-temperature ball valve (-196 ℃), L11 cast steel top mounted trunnion ball low-temperature ball valve (-100 ℃), L12 cast steel top mounted trunnion ball low-temperature ball valve (-46 ℃), L20 cast steel top mounted floating ball low-temperature ball valve (-196 ℃), L21 cast steel top mounted floating ball low-temperature ball valve (-100 ℃), L22 cast steel top mounted floating ball low-temperature ball valve (-46 ℃)

2、 Detailed information

Product Overview

Top entry cryogenic trunnion mounted ball valve, as important on/off components in low-temperature pipeline systems, are an important component of the petrochemical, air separation, and natural gas industries. The top mounted ultra-low temperature ball valve adopts a top mounted structure, which can achieve online maintenance and is suitable for low-temperature liquid or gas media, such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), liquid hydrogen, liquid oxygen, ethylene, and other conditions.

Design and inspection can comply with standards such as BS 6364, MSS SP-134, MESC SPE 77/200, JB/T 7749, JB/T 12625, ASME B16.5, ASME B31.8, and API 6FA. Fire safety meets the requirements of API607/API 6FA and has been tested and certified.

main features 

① The top mounted valve body structure allows for online valve maintenance.

② Valve cover extension design

③ Design of Valve Stem Live Load Sealing Structure

④ The valve seat component has a special design, reliable sealing, and a detachable valve seat structure.

⑤ Valve chamber overpressure relief design

⑥ Valve stem anti-settlement design

⑦ The extended valve cover has a drip tray design, which can effectively prevent condensation water from entering the insulation layer.

⑧ Fire resistant, anti-static, and anti-blowout stem function.