Cryogenic Top Entry Ball Valve

Design Features:

1.DIB-2 Middle cavity self-decompression structure.

2.Bonnet is an integral extended structure, and the valve cover seal adopts a combination of spiral wound gasket and lip seal ring.

3.Stem seal adopts a combination of flexible graphite ring and lip seal, which has anti-static and fire-safe design.

4.All casting and forging materials are 100% immersed in a liquid nitrogen pool at -196℃ for cryogenic treatment after rough machining and before fine machining.

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Low-Temperature Top Entry Ball Valve Supplier | Cryogenic Solutions

Low-Temperature Top Entry Ball Valve Supplier: Cryogenic Solutions for Extreme Cold Environments

Why Top-Entry Ball Valves Excel in Cryogenic Conditions

Top-entry ball valves are engineered for low-temperature environments (down to -196°C/-320°F) where traditional valves risk seal failure, brittle fracture, or operational leaks. Their top-mounted stem design eliminates external leakage paths, simplifies maintenance, and ensures zero emissions in hazardous or cryogenic systems.

Key Advantages of Our Cryogenic Ball Valves

Sub-Zero Reliability: Materials and seals rated for extreme cold (ASTM B637 Monel, 316LN stainless steel).
Top-Entry Maintenance: No need to disconnect piping for valve servicing.
Leak-Free Operation: Double-block-and-bleed (DBB) design with metal-to-metal seals + elastomer/PTFE liners.
Bulkhead Compatibility: Compact design for tank farms, pipelines, and cryogenic storage systems.

Customized Cryogenic Solutions for Industries

❄️ Material Selection for Extreme Cold

Body & Ball: 316LN stainless steel (cryogenic-grade), Monel 400 (saltwater resistance), or Duplex Steel (high-pressure LNG).
Seals: PTFE-coated elastomers (for -100°C) or flexible graphite (for -196°C).
Stem Coating: Teflon or Molybdenum Disulfide (MoS₂) to prevent galling in sub-zero temperatures.