80 mm Vacuum Insulated Control Valve

HSE require an 80 mm valve for an experimental programme. The valve must be suitable for liquid hydrogen service (down to 20 K) and have pneumatic actuation (open/closed). The valve should have an Ex d position indicator rated for ATEX Zone 1 suitable for hydrogen use. The valve should have flanged connections (ANSI class 300). The valve body should have a maximum allowable working pressure of 40 barg. There should be a section of 3" pipe with a 1/4" BSP boss, either welded between the valve and flange, or as a sep...