Conical spring design Operating Limits: Temperature:-20——150 Speed: 10m/s. Pressure: 10bar. Standard size: 10-40mm. The Common Materials: Seal ring: Car, Sic, Ssic, TC. Secondary seal: NBR,,EPDM,Viton etc. Spring and metal parts: 304,316. Asinoseal also offer mechanical seals’ stocks for Burgmann M3N, M37/M37G, , HJ92N, M7N, H7N, M74-D, H74-D, Eagle 1527, EA560(A), MG1/12/13/S20.