... Rised Face Flang(SRFF) 16.galvanized threaded flange 17.butterfly valve flange 18.slotted flanges 19. tongue and groove facing flange ... ,63K,RF,FFANSI standards: ANSI 150,300,400,600,900,1500,2500RF ANSI 150,300,600,900,1500,2500RJJPI standards: JPI 150,300,600RF,RJDIN standards: PN16(1 ...