Seat Seal Ring： For style FC(2K-15K) Manual Gate Valve

Material Specification : FILLED PTFE 

API 6A ,PSL 1-4

Temperature Ratings:K,L,P,S,T,U,V

Material Class:AA,BB,CC,DD-NL,EE-NL,FF-NL

Size:1" - 6" Inch

Working Pressure: 2.000-15.000 psi