What is a Vacuum Jacketed Piping System? Vacuum jacketed piping, also called VJ piping or vacuum-insulated piping, is used to transfer supercooled gasses in liquid form. Cryogens like liquid helium, liquid oxygen, and liquid nitrogen must be kept cold during the...
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Cryogenic Piping Accessories Literature
Download literature for our reliable, long-life cryogenic piping accessories. We offer expertly engineered vacuum jacketed valves, vacuum seal off valves and operators, vacuum relief valves, coldbox valves, cryo vents and heaters, and pipe and tube size bayonets. The...
CV Calculation and Flow Coefficient Table
Valve Sizing: Flow Calculations For CV calculation use this basic liquid flow formula. CV = Flow Coefficient, QL = Flow (GPM), SG = Specific Gravity, ∆P=Pressure Drop (PSIA) Specific Gravity for Common Fluids (SG) Water: 1.000 LN2: 0.808 LH2: 0.071 LHe: 0.125...
Design Options for Cryogenic Valves
Options for cryogenic valves like body shapes, vacuum insulation, actuators, positioners, cryogenic solenoid valves, and characterized flow.
How To Specify a Cryogenic Valve— The Basics
Cryogenic liquid valves control the flow of liquid super-cooled gases like nitrogen, hydrogen, argon, oxygen, and helium. The gases must be kept extremely cold to stay liquid, so cryogenic valves are designed to function while minimizing warming. Cryogenic valve...