The Torque Saver Gasket benefits over Envelope and PTFE Gaskets are as follows:-
Seals Tighter – Sealing rings moulded in manufacture with at least 75% less surface area for high performance in non-metallic and glass lined flanges.
Chemical Resistance – Pure PTFE has a pH of 0-14 resisting a variety of acids and alkalis.
Suggested Applications include the following Flange types:
Cast and ductile iron