M. Spring O Ring Seal:

Face Seal: Carbon, Tungsten Carbide
Silicon Carbide, Ceramic, Lecrolloy
Metal Parts: SS 316, SS304, Hastelloy-C, Monel, Alloy-20
Welded Bellows: AM 350, Hastelloy-C
Secondary seal: Neoperene, Nitrile, EPR, Viton®,PTFE Wedge , vition® ‘O’ rings.