Multipurpose Relief Valve Ordering Matrix CV19 Series Safety Relief Valve Ordering Matrix CV500 Series Relief Valve Ordering Matrix CV19 250 20 16 - CV51 1 0406 325 M K HT - D - Series Bronze/Brass Bronze/Stainless Carbon/Stainless All Stainless CV51 CV52 CV53 CV54 = = = = Cap Screwed Cap Screwd + Gag Packed Lever Packed + Gag = = = = 1 2 3 4 = = = = Size 0406* 0408 0606* 0608 0610 0810 0812 1012 1016 1216 1220 1620 1624 Set Pressure 5 to 900 PSI Available Seat M B E K N S V = = = = = = = Metal Buna-n EPDM PCTFE Neoprene Silicone Viton Orifice Group D E F G H J Service Code J K L M N P Q = = = = = = = Sec VIII Liquid Sec VIII air/gas Sec VIII steam Non Code Liquid Non Code air/gas Non Code Steam Vacuum Special Options HT OX = = High Temperature Spring Cleaned for Oxygen A Valve Series Inlet 04 06 08 10 12 16 20 = = = = = = = 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 2-1/2” Outlet 06 08 10 12 16 20 = = = = = = 3/4” 1” 1-1/4” 1-1/2” 2” 2-1/2” Set Pressure 15 to 300 PSI in 5 PSI increments Available Service Media Steam Steam Air = = = F U A V UV UV