Products Description
Cryogenic ball valves are designed for cryogenic media in cryogenic processing plants, such as liquid gases CO2, N2, Ar, O2 natural gas (LNG). The valve features a spring-loaded seat ring system that ensures easy ball switching at temperatures as low as -200°C. In addition, the ball valve features an integrated pressure relief system, a blow-out-proof switching shaft, virtually no dead spaces and a prestressed stop bushing seal in accordance with TA-Luft standards to ensure maximum process reliability.
Cryogenic ball valves are manufactured specifically for extremely low and cryogenic applications. The valve is designed with an integral bonnet extension that prevents cryogenic liquids from reaching the stem packing by causing the liquid to boil and convert to gas. This minimizes energy loss along the extension and prevents valve failure. The valve's structural integrity minimizes thermal deformation of internal components caused by temperature changes, ensuring the highest performance levels for tight shutoff in critical LNG areas.
Specification
|
Sizes |
DN 10 - DN 150 |
|
Pressure ratings |
PN 10 - PN 40, ASME Class 150/300 lbs, vacuum-tight |
|
Operating temperature |
- 200 °C to + 200 °C |
|
Face-to-face dimension |
(Flanged version EN 10921) EN 558 series 1, EN 558 series 27, ANSI B16.10 |
|
Welding ends |
Female thread EN 10226-1, male thread DIN ISO 228-1 |
|
Special features |
Cryo-insulation attachment for cryogenic media such as liquid gases (CO2, N2, LNG) |
|
Mounting flange |
DIN EN ISO 5211 |
|
Test |
DIN EN 12266-1 |
Application Areas
Liquefied natural gas (LNG)
Liquefied Petroleum Gas (LPG)
Liquefied oxygen
Liquefied hydrogen.
Air separation industry
Design features and benefits
The extended valve cover design ensures the reliability of valve stem packing and sealing.
Drainage board design to prevent condensation.
Anti-static and fire-proof design.
The cavity automatically releases pressure, which is suitable for explosive media and is safe.
Live-loaded API 622 certified graphite and lip seals ensure compliance with API 624 fugitive emissions standards.
Suitable for operating temperatures as low as -196°C.
Multiple valve seat design options, suitable for various working media and conditions.
Optional top or side entry design.
GNEE Cryo Ball Valve Team
GNEE High Pressure Cryogenic Ball Valve Customers
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