Ashcroft Diaphragm Seals
The comprehensive line of Ashcroft diaphragm seals will meet a wide variety of application or installation requirements. Over 30,000 variations are possible with the types, connections and materials available.
Ashcroft Diaphragm Seal Selection
When selecting an Ashcroft diaphragm seal, consider the following:
Ashcroft diaphragm seals (with the exception of Types 310, 320, 400 & 500 series) are normally furnished with a nickel/chrome plated carbon steel top housing. As an option, Ashcroft offers 316 stainless steel.
Types 310, 320, 400 & 500 series come standard with a 316L stainless steel top housing. A standard fill/bleed connection allows the seal and instrument to be evacuated and filled.
Lower housings are available from Ashcroft in a variety of materials to fit your application needs.
Selection of the lower housing material is important since it is in direct contact with the process media.
The diaphragm is in direct contact with the process, and selecting the proper Ashcroft diaphragm is important.
Black epoxy painted carbon steel is standard for Ashcroft rings. 316 stainless steel is an available option.
Upper Flange Rings
ASME B16.5 nickel/chrome plated carbon steel flanged rings are standard. 316 stainless steel is optional.