Frequently Asked Questions

We aim to answer all your frequent questions, and will update this part of our website as we receive more questions. Hopefully you will find the answer you are looking for here.

Design Temperature Design Media Design Pressure Type of Joint involved Criticality (Should the application be critical a double seal gasket could be used)

The flange rating determines the Flange / Gasket dimensions for standard size flanges. (i.e. ASME B16.5 - 150#, 300#, 600# etc, BS4504 – PN10, PN16, PN25, PN40, etc).

Ring - A circular gasket with no bolt holes, usually placed inside the bolt circle and typically used in raised face flanges Full Face - A gasket covering the entire flange surface and including bolt holes