“Butterfly valve – Disc
Valve size: 400A
Disc: H 5120 CAC 701 JIS
Disc Screw / Taper Pin : G 4303 SUS 316 JIS
O – Ring: Material – Buna – N
Keystone Documents No.: KKB-R3-139
Manufacturer: Keystone Vavle(Korea) LLC.” “VITON RATED SEAT RING FOR 550A BUTTERFLY VALVE (PART NO 246-360)
” KEYSTONE.NA.NA