Effective March 22, 2006 Griffco will begin to phase in our new "G-Series" Back Pressure and Pressure Relief Valves replacing the "V-Series" valves.
The new "G-Series" valves have a new valve top designed to improve the structural strength of the valve and enable our valves to work in higher pressure systems.
G Series Back Pressure Valves - [DOWNLOAD]
G Series Pressure Relief Valves - [DOWNLOAD]