Specific feature (Forge): N280

Description

Description:
Cryogenic globe valves are specialized valves designed to control the flow of cryogenic fluids (liquids at extremely low temperatures, typically below -150°C). This valve, while seemingly simple in appearance, possesses a complex internal structure that necessitates meticulous design and engineering. When equipped with an actuator, the valve undergoes rigorous testing, including pre-cooling, leakage, cycling, and stroke tests. We offer this valve to our customers in a range of sizes and pressure classes.

Material (Forged Valve):
• Body, Bonnet, and Disc: Forged Carbon Steel, Low Temperature Carbon Steel, or Stainless Steel (e.g., 316L, 316LN)
• Stem: 17-4PH Stainless Steel or other low-temperature compatible materials
• Packing: PTFE or other low-temperature compatible packing
• Gasket: Metal-to-metal or soft gasket suitable for cryogenic temperatures

Material (Casted Valve):
• Body, Bonnet, and Disc: Cast Carbon Steel, Low Temperature Carbon Steel, or Cast Stainless Steel (e.g., CF8M, CF8)
• Stem: 17-4PH Stainless Steel or other low-temperature compatible materials
• Packing: PTFE or other low-temperature compatible packing
• Gasket: Metal-to-metal or soft gasket suitable for cryogenic temperatures
Performance:
• Temperature Range: -196°C to 120°C (or lower, depending on specific design)
• Pressure Rating: Class 150, 300, 600, 900, or 1500 (or higher, depending on specific design)
• Leakage Class: Zero leakage or low leakage, depending on the specific application
• Cycle Life: High cycle life, suitable for frequent operation
Considerations:
• Low-Temperature Lubrication: Special low-temperature lubricants may be required for valve operation
• Thermal Shock Resistance: The valve is designed to resist thermal shock
• Corrosion Resistance: The valve is resistant to corrosion from the cryogenic fluid and any impurities it may contain.
• Cryogenic Fluid Compatibility: The valve materials and lubricants must be compatible with the specific cryogenic fluid being used.
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