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  • Forged steel low-temperature valve

Forged steel low-temperature valves are divided into forged steel low-temperature gate valves, forged steel low-temperature globe valves, and forged steel low-temperature check valves.
 
Structural features:
Bright pole bracket type (OS&Y);
Long neck valve cover structure;
Self centering pressure plate sleeve type;
Bolted connection, wrapped gasket sealed valve cover;
Threaded connection, fully welded sealed valve cover;
Integral sealing seat;
Leave a steam space between the valve cover and packing box to keep the temperature of the packing close to the outside, ensure the flexibility of the packing, prevent freezing and scratching, and enable normal operation.
A pressure relief hole is installed at the inlet of the gate valve to ensure pressure balance.
The opening and closing components of the low-temperature valve adopt a hard alloy overlay structure.

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Design specifications:
Design standards: API 602, ASME B16.34, BS 6364, MESC SPE 77/200
Structural length: ASME B16.10, factory standard
Connection standard:
1) Socket end: ASME B16.11;
2) Threaded connection end (NPT): ASME B1.20.1
3) Welding end: ASME B16.25
4) Flange end: ASME B16.5;
Inspection and testing: API 598, BS 6364
Temperature pressure rating: ASME B16.34
 
Performance parameters:
Pressure rating: CL 150~CL 2500 (PN10-420)
Nominal size: NPS 1/4~NPS 3 (DN8-DN80)
Main materials: LF2, F304 (L), F316 (L), etc
Applicable temperature: -196 ℃ -200 ℃
Application field: Suitable for liquefied natural gas equipment, LNG and other low-temperature media

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