Can anyone recommend valve manufacturers who make a good high temperature valve. The temperature that I am looking at is 600 Degrees at 100 psig.
Thanks
Orbit is an example but it has a prefered pressure end. Is bidirectional tight shutoff required? Metal to metal seats are necessary unless someone mentions something interesting.
600 degrees F is not bad. Most any valve with metallurgy better than brass or iron can handle that. Steel would be fine. Even the gaskets will work as long as the packing box is either extended to keep the TFE packing cool, or if the seals are Graphite.
If the valve is operating at 600C, then special metallurgy is necessary. Stainless (316) minimum, probably inconel stem and seat, and graphite seals.
Like everything else, it depends upon what material is flowing through the valve and it is necessary to find a material that is compatible with the lading at elevated temps.
If 600F at 100 psi is your design temperature and pressure this application will fit soft seated materials. Xomox makes plug, ball and butterfly valves that will fit this application. SVF also makes ball valves that could work.
If 600F at 100 psi is your acual temperature and pressure I would suggest using a metal or graphite seated valve. Bonneti valve makes a graphite seated ball valve. Adams makes a metal seated butterfly valve.
All these valves shoud give you a Class VI shutoff.
If you need butterfly valves for 600 degrees C. and a step seat design in the valve body,no being necesary a 100 % tight
valve, get in touch with VALVULAS JOLA in SPAIN. Good butterfly valves in refractory cast iron designs.
Bzandy, Ceramics handle high temps quite well except for the annoying little problem of thermal shock. If they are rocking along red hot, and somebody switches a valve upstream to let a cool process media in, the ceramic can shatter into many, many pieces.