Ball valves are fit for cryogenic duties
A
Flow-Tek product story
Edited by the Engineeringtalk editorial team
Oct 9, 2006
Cryogenic ball valves are designed for use in the production, transportation and storage of liquefied gases.
Flow-Tek now offers cryogenic ball valves to be used in the production, transportation and storage of liquefied gases.
These specially designed valves have extended stems and bonnets installed to position the stem packing above the cryogenic fluid and provide a column of warmer vapour that insulates the stem seal from the effects of low temperatures.
Flow-Tek has based the cryogenic valve on its reliable stainless steel Triad three-piece valve available with various end connections including threaded, socket weld and butt weld.
These valves are also available in Flow-Tek's F15 flanged valve design.
Valves are available in sizes 0.5 to 4in.
Some of the key features include high-density TFM-1600 seats and seals throughout the valve that enable the valve to be rated down to -250C service.
Each valve is permanently marked with a flow direction arrow to prevent incorrect installation.
Live loaded stem packing is utilised providing self-adjustment to compensate for wear and also thermal expansion and contraction.
All valves are provided with blowout-proof stems and all valves are cleaned before shipment to remove all grease and oils that may react with the service media.
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