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Design of High-pressure Slab Gate Valves for High-sulfur Natural Gas (Part Three)

Internal pressure self-sealing structure in the middle cavity For slab gate valves with class over or equal to 900, a pressure self tightening sealing valve bonnet is adopted, which has a unique seal and is designed as a metal sealing ring. When the sealing ring is under pressure, as the pressure difference increases between the upper and lower sides, the sealing ring elastically deforms during the extrusion process to obtain a reliable seal. The sealing ring can be used repeatedly,...

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Design of High-pressure Slab Gate Valves for High-sulfur Natural Gas (Part Two)

Structure and functional characteristics The design and manufacture of high-pressure slab gate valves for anti high sulfur natural gas gathering and transportation projects are in accordance with API6D standards. The flow direction of the medium is unlimited. The key to its structural design is to ensure zero leakage sealing, and to obtain valve self-cleaning, self-relief in the middle cavity and fire prevention, anti static and other functions. See the Figure...

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Design of High-pressure Slab Gate Valves for High-sulfur Natural Gas (Part One)

Abstract The main material selection and process control of high-pressure slab gate valves for high-sulfur natural gas gathering and transportation projects are introduced. The harsh working conditions and corrosion forms of natural gas containing high hydrogen sulfide raw materials are analyzed, and the sealing structure and functional design methods of the high-pressure slab gate valve are given. Overview With the continuous growth of natural gas energy consumption, clean extraction...

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