Top Entry Cryogenic Floating Ball Valve
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- DN15 to DN600
- Pressure Class
- Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500
- Operating temperature
- -196°C to 150°C, by material
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
Temperature by material
The temperature limit follows the material grade, so the range above spans every grade offered rather than any one build. Confirmed at quotation.
- Alloy Steel
- -29°C to 150°C
- Stainless Steel
- -196°C to 150°C (cryogenic service requires an extended bonnet and a BS 6364 type test)
Operating media
Typical applications
- LNG handling
- LPG handling
- Low-temperature pipeline service
- Long-distance oil and gas pipelines
Actuation options
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
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.
Selection notes
This cryogenic ball valve is a floating ball valve and top entry ball valve pattern.
Sizes run DN15 to DN600, in Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500.
The body is offered in Stainless Steel and Alloy Steel, so the grade can be matched to the service rather than the other way round.
Seat and trim options are PCTFE. The seat, not the body, usually sets the temperature and medium limit, so confirm it against the service before ordering.
Stated service media include lng, lpg, natural gas, oil and gas.
It is catalogued for Oil & Gas.
Working temperature is -196°C to 150°C, by material.
Supplier remarks
- 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.
Available pressure classes
Pressure classes this product is rated to.
Used in
Related guides
Smart find
Searches our product catalogue using your spec. Drop a spec sheet or parts list (PDF, Excel, CSV, Word or text, several 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.Cryogenic Valves configurations
View full Cryogenic Valves system →Top Entry Cryogenic C-Type Ball Valve
NPS 1/2" to NPS 24"
Top Entry Cryogenic Trunnion Mounted Ball Valve
DN15 to DN600
Side Entry Cryogenic Floating Ball Valve
DN15 to DN200
Side Entry Cryogenic Trunnion Mounted Ball Valve
NPS 1/2" to NPS 24"
Cryogenic Butterfly Valve with Maintenance Port
DN150 to DN2000
Cryogenic High-Performance Butterfly Valve
DN150 to DN2000
Cryogenic Lifting Check Valve
DN15 to DN600
Cryogenic Triple Eccentric Butterfly Valve
DN15 to DN600
Cryogenic Swing Check Valve
DN15 to DN600
Cryogenic Single-seat Control Valve
DN15 to DN600
Cryogenic Gate Valve
DN15 to DN600
Cryogenic Globe Valve
DN15 to DN600
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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.
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Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.