A : type

SW : swing type
SL : sliding type
CL : compact sliding type
EW : jack bolt swing type
EL : jack bolt sliding type

B : size

ex) 200 = DN200 = 8”

C : class ( ex )

AN300 = ANSI class 300lbs
JS20 = JIS class 20kg/?
DN16 = DIN class 16 bar

C : class ( ex )

NBR / HNBR ( Nitrill rubber, Buna-N )
FPM / FKM ( Viton )
FEPV / FEPQ ( encapsulated O-ring )
PFAV / PFAQ ( encapsulated O-ring )
VMQ / FVMQ / PVMQ ( silicone )
PTFE / CTFE / Soft PTFE ( Teflon, Kel-F, expended Teflon )
PEEK
FFPM / FFKM ( Kalrez, perfluoro elastomer )
Graphite ( Pure, Engineered )
Metal