Top Entry Cryogenic Floating Ball Valve
Specifications
Confirmed at quote- Size Range
- DN15 to DN600
- Pressure Class
- Class 150 to Class 2500
Available sizes
Standard DN sizes covered by this product. Confirmed at quote.
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
Materials
All available material options per part. Click a pill to set it in the configurator.
- body
- seat sealing surface
Features
- Top-entry design allows online disassembly and maintenance without removing valve from pipeline
- Valve body cast or forged as a single unit, ensuring integrity of pressure-bearing parts
- Extended bonnet design with controlled stem-to-neck clearance to reduce cold flow migration and prevent packing icing
- Outer annular long-neck groove increases cooling dissipation area
- Adjustable spring-preloaded seat pushes seat against ball under spring and medium pressure, maintaining seal at low temperature and low pressure
- PCTFE seat sealing material retains elasticity under ultra-low temperature conditions (on selected products)
- Primary stem seal formed by lip-type sealing ring
- Secondary stem seal formed by compressed stem packing
- Self-centring pressure cover and pressure sleeve design on selected products to prevent imbalance from uneven loading
Notes
- Some products use imported PCTFE and other materials for the valve seat sealing surface
- Some products adopt a self-centring design for the pressure cover and pressure sleeve
- Operator options include manual, pneumatic, electric, etc.
Description
A top-entry floating ball valve designed for ultra-low temperature service, used to connect or isolate cryogenic media. The valve body is cast or forged as a single unit with an extended bonnet design to minimise cold flow and prevent packing icing. Features a spring-preloaded adjustable seat and dual-stage stem sealing suitable for cryogenic conditions down to -196°C.
Available pressure classes
Pressure classes this product is rated to.
Smart find
Searches our product catalogue using your spec. Drop a PDF (or multiple PDFs at once), paste a description or a part number and we'll find the closest matches for each. Anything we can't match goes to your RFQ as a custom enquiry for our team to source.Related Cryogenic Ball Valves
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- Type
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- Size
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- Pressure
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- Standards
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Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.
Cryogenic Ball ValveREF 482Top Entry Cryogenic Trunnion Mounted Ball Valve
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Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.
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Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.
Cryogenic Ball ValveREF 485Side Entry Cryogenic Trunnion Mounted Ball Valve
- Type
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- Size
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Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.