Fire hydrant control valve
AssigneeSigelock Systems, L.L.C.
InventorGeorge Sigelakis
Life of this patent
Estimating the term…
Abstract
A valve control device includes an operating stem, a valve top plate, a valve seat rubber, a valve bottom plate, and a valve seat ring. The valve top plate has a conical base with at least three stabilizer arms extending therefrom. Each of the at least three stabilizer arms has a flat outer surface. The valve bottom plate secures the valve seat rubber between the valve bottom plate and a flat bottom surface of the valve top plate. The valve bottom plate, the valve seat rubber, and the conical base are mounted on the operating stem. The valve seat ring has multiple slots, with each of the slots corresponding to one of the at least three stabilizer arms. A standpipe drain system, a method of draining a standpipe, and a locking fire hydrant with a valve access channel drain also are described.
Claims23
A valve control device comprising:
- an operating stem;
- a valve top plate having a conical base with at least three stabilizer arms extending therefrom, each of the at least three stabilizer arms having a flat outer surface;
- a valve seat rubber;
- a valve bottom plate securing the valve seat rubber between the valve bottom plate and a flat bottom surface of the valve top plate, the valve bottom plate, the valve seat rubber and the conical base being mounted on the operating stem;
- and
- a valve seat ring having a plurality of slots, each of the plurality of slots corresponding to one of the at least three stabilizer arms.
A standpipe drain system comprising:
- a standpipe;
- a valve control device including:
- an operating stem;
- a valve top plate having a conical base having at least three stabilizer arms,
- each of the at least three stabilizer arms having a flat outer surface;
- a valve seat rubber;
- a valve bottom plate securing the valve seat rubber between the valve bottom plate and a flat bottom surface of the valve top plate, the valve bottom plate, the valve seat rubber, and the conical base being mounted on the operating stem;
- and
- a valve seat ring having a plurality of slots, each of the plurality of slots corresponding to one of the at least three stabilizer arms, wherein the valve seat ring includes at least one drain hole, the at least one drain hole being in fluid communication with an outlet portion of the valve seat ring with the valve control device in a closed position, the at least one drain hole being covered by one of the at least three stabilizer arms when the valve control device is an open position.
A method of draining a standpipe comprising:
- closing a valve control device including uncovering a drain hole in a slot of a saturation ring, the drain hole being in an outlet portion of the valve seat ring;
- and
- draining a contents of the standpipe through a drain route to an external portion of the standpipe, the drain route including the at least one drain port in the valve seat ring, a plurality of drain ports in a drain ring, and a plurality of notches and a plurality of outlet notches and a drain channel in a saturation ring.
A locking fire hydrant with a valve access channel drain comprising:
- a locking cap mounted on the fire hydrant, the locking cap being configured to close off a main outlet port and a valve access channel;
- and
- at least one drain channel in the valve access channel.
A fire hydrant standpipe valve control device comprising:
- a valve seat rubber formed from at least one of an acetal resin (Delrin) material and a polyethylene terephthalate (PET) material and a ultra high molecular weight (UHMW) polyethylene material.
Dependencies are inferred from the claim text.