What type of diaphragm seal fill fluids does Ashcroft offer for high temperatures?

The Syltherm^™ 800 fill fluid (XHA), made by Dow Corning Corporation, Midland, Michigan is

recommended for high temperature applications. Syltherm^™ is a silicone-based fluid and it is

NOT recommended for applications where the process media is a strong oxidizing agent such as

Chlorine, Oxygen, Sulfuric Acid among others. Syltherm^™ can withstand temperatures from 40 °F to 750 °F. Standard Silicone (XCK) can withstand temperatures from -40 °F to 500 °F.