RP4A 2½ – 6. Modification Overview Production of the RP4A series began in 2008. Production of the RP4A series began in 2008. A Lead free version (4ALF)
RP4AN 21/2 – 6. Modification Overview Production of the RP4AN series began in 2008. Production of the RP4AN series began in 2008. The 4AN indicates an.
975 2½”-10”
909 21/2”-10”
475, 475V 2½”-3”
475, 475V, 475XL 4”-10”
825Y(YA) 3/4”-2”. Modification Overview Production of the 825Y began in 1978 and is current. The 825YR (1994-2006) had replaceable check seats. **
375, 375XL 1¼” -2”
375AST 21/2”-10”. Modification Overview The stainless steel (ST) series was introduced in 2011. This version has a stainless steel body. ***(Parts.
RP4AN 21/2” – 6”
RPDA 4AN 21/2” – 6”
475, 475V 2½”-3”. Modification Overview Production of the 2½ - 3” sizes began in 1998. The lead free version (XL) was introduced in 2011.
