The Sentinel hydrant complies with the latest edition of AWWA C502. It also is in compliance with the most recent ULC Standard CAN/ULC S520-M91. Engineered for easy maintenance, the compression-style main valve assembly uses water pressure to assure a positive closure. Its classical yet modern design and maintenance friendly mechanism allow the Sentinel to blend in with any type of environment.

Technical Specifications APPROVAL Approved in accordance with the most recent standards of the U.L.C: CAN/U.L.C - S520-M91 OPERATING MECHANISM Two O-rings prevent any infiltration into the mechanism, the top O-Ring being made of neoprene which is very resistant to adverse weather conditions. Acetal washers are used for durability and to reduce friction during the operation of the hydrant HOSE AND PUMPER OUTLETS Set screws holding the nozzles in place may be removed and the nozzle can be easily changed with a simple 90 degree rotation. BREAKAWAY FLANGE As a safety feature, this flange will break in the event of a vehicle striking the hydrant, thus preventing barrel and seat damage. It also allows for a 360 degree rotation of the upper barrel during installation. HYDRANT BOOT AND VALVE BOTTOM Both are made of cast iron and epoxy coated for corrosion resistance.

VALVE MECHANISM A lube inlet has been added to ease the lubrication of the upper mechanism without removing any parts. The 5 1/4" polyurethane valve disc is very resistant to distortion. Stones and debris will not become lodged in the polyurethane disc, thus allowing for a proper seal each time the hydrant is used. The polyurethane disc will also help to reduce maintenance costs from disc failure.   DRAIN MECHANISM Two tapped pipe thread drain holes assure complete drainage of the lower barrel. Polyurethane closures are used to seal the drain holes. These closures are very resistant to wear, requiring minimal maintenance. Drain holes may be plugged without excavation of the hydrant. GENERAL MAINTENANCE AND RECONDITIONING The valve mechanism sits on a brass insert which will facilitate the removal of the mechanism after many years. Many components have been combined to reduce the number of parts required for maintenance. The use of polyurethane on these parts reduces maintenance as polyurethane is very wear resident.   QUALITY CONTROL Every Bibby Sentinel hydrant is tested to AWWA and ULC specifications before shipping.

TECHNICAL SPECS | SCHEMATIC | MECHANISM PARTS | REMOVAL OF MECHANISM