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LNG & Cryogenics
LNG & Cryogenics
Polymer Products for LNG and Cryogenics Applications
Polymer Products for LNG and Cryogenics Applications
HIGH-PERFORMANCE POLYMER PRODUCTS FOR LNG & CRYOGENICS APPLICATIONS
HIGH-PERFORMANCE POLYMER PRODUCTS FOR LNG & CRYOGENICS APPLICATIONS
Finding an efficient sealing solution for use in cryogenic work environments can be quite difficult. Keep in mind that under normal atmospheric pressure, nitrogen exists as a liquid between -220°C (-346°F) and -195.8°C (-320.44°F). It has a very high liquid-to-gas expansion ratio of 1:694, which indicates that as it boils (beginning at its boiling point of -195.8°C/-320.44°F), it will expand to 694 times its initial volume.
Finding an efficient sealing solution for use in cryogenic work environments can be quite difficult. Keep in mind that under normal atmospheric pressure, nitrogen exists as a liquid between -220°C (-346°F) and -195.8°C (-320.44°F). It has a very high liquid-to-gas expansion ratio of 1:694, which indicates that as it boils (beginning at its boiling point of -195.8°C/-320.44°F), it will expand to 694 times its initial volume.
If this occurs in a sealed environment, it can result in an extraordinarily significant pressure change, and most LNG seals must stay effective at either vacuum pressures or extremely high pressures.
If this occurs in a sealed environment, it can result in an extraordinarily significant pressure change, and most LNG seals must stay effective at either vacuum pressures or extremely high pressures.
Many elements, such as spring force, surface quality, friction, and permissible leakage, must be balanced while sealing in LNG and cryogenic applications. Within the market, some typical applications include natural gas liquefaction plants, LNG receiving stations, LNG storage terminals, pipeline valves, low fugitive emission valves, on-off valves, control valves, pumps, centrifugal and reciprocating compressors, heat exchangers, vaporizers, fuel dispensers and nozzles, fluid transfer equipment, and liquid oxygen or nitrogen valving.
Many elements, such as spring force, surface quality, friction, and permissible leakage, must be balanced while sealing in LNG and cryogenic applications. Within the market, some typical applications include natural gas liquefaction plants, LNG receiving stations, LNG storage terminals, pipeline valves, low fugitive emission valves, on-off valves, control valves, pumps, centrifugal and reciprocating compressors, heat exchangers, vaporizers, fuel dispensers and nozzles, fluid transfer equipment, and liquid oxygen or nitrogen valving.
Some of the materials in SYP SEALS ’s material portfolio with the right characteristics and properties for LNG and cryogenics applications include:
Some of the materials in SYP SEALS ’s material portfolio with the right characteristics and properties for LNG and cryogenics applications include:
• PTFE
(Polytetrafluoroethylene)
• UHMWPE (Ultra-high-
molecular-weight
polyethylene)
• PCTFE (Polychlorotrifluoroethylene)
• PTFE
(Polytetrafluoroethylene)
• UHMWPE (Ultra-high-
molecular-weight
polyethylene)
• PCTFE (Polychlorotrifluoroethylene)
• TFE (Tetrafluoroethylene)
• TFM - Dyneon®
• Impregnated PTFE asbestos rope
• Flexible graphite
• TFE (Tetrafluoroethylene)
• TFM - Dyneon®
• Impregnated PTFE asbestos rope
• Flexible graphite
To address the complexities of the market, polymer product manufacturers must deliver the best quality materials and compounds, often focused on thermoplastics, fluoroplastics, composites, graphites, and packing materials.
To address the complexities of the market, polymer product manufacturers must deliver the best quality materials and compounds, often focused on thermoplastics, fluoroplastics, composites, graphites, and packing materials.
TRUSTED HIGH-PERFORMANCE POLYMERS FOR LNG & CRYOGENICS APPLICATIONS
TRUSTED HIGH-PERFORMANCE POLYMERS FOR LNG & CRYOGENICS APPLICATIONS
Here is a sample of the many products manufactured using high-performance polymer products for the LNG and cryogenics industry:
Here is a sample of the many products manufactured using high-performance polymer products for the LNG and cryogenics industry:
The LNG and cryogenics industry has strict requirements and challenging specifications all driven to ensure chemical compatibility, low friction, wear-resistance, and extrusion resistance.
The LNG and cryogenics industry has strict requirements and challenging specifications all driven to ensure chemical compatibility, low friction, wear-resistance, and extrusion resistance.
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603A, Building E, Phase II, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen
603A, Building E, Phase II, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen
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© 2026 SEALS Products - All Rights Reserved