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By certification 
AS-R155，
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.
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.
