The Cla-Val Model 355GF Hydrant Isolation Valve is designed to fit underneath a hydrant pit valve. Once closed, the entire Hydrant Pit Valve can be removed for maintenance or replacement while the rest of the hydrant system remains pressurized and operational.
The Model 352GF Hydrant Pit Valve is a Deadman operated on-off valve designed for use in military aircraft refueling. It typically bolts to the terminus of an underground fuel delivery piping system and qualifies as the final shut-off device for such systems per NFPA 30. Our Hydrant Pit Valve is compact enough to fit into a 13-inch diameter pit and conforms to API Bulletin 1584, Fourth Edition.