Documents 909 3/4”-2”

909 3/4â-2â Modification Overview Production began in 1979 and is current. The 909M1 (1989) in the 11/4â-2â sizes only. Change was in the body only- internal components…

Documents 709 3/4”-2”

709 3/4â-2â Modification Overview Production began in 1979 and was discontinued in 1993. Check Cover Removal Cover is o-ring sealed. Check valve assembly is attached to…