A self-draining hydrant comprising a supply line coupled to an outlet and a housing adapted for placement in the ground and for coupling to a water supply. The housing can selectively provide water from the water supply to the supply line and has a reservoir for receiving drained water from the supply line. A piston is movable in a direction of travel from a first position to a second position within the housing for engaging the drained water and expelling it from the reservoir. The piston has a seal for engaging the housing to provide a seal with respect to the drained water. The housing has at least one slot extending in the direction of travel and engageable by the seal for permitting drained water to pass the seal.

A supply assembly for use with a hydrant comprising a first supply valve adapted for coupling to a first supply line of the hydrant and a second supply valve adapted for coupling to a second supply line of the hydrant. A housing contains a first drain valve and a second drain valve. The first supply valve is coupled to the first drain valve for permitting water to be drained from the first supply line when a first outlet of the hydrant is off, and the second supply valve is coupled to the second drain valve for permitting water to be drained from the second supply line when a second outlet of the hydrant is off. The first supply valve is above the second supply valve to permit radially compact nesting of the first supply valve and the second supply valve. Related assemblies, valves and methods are provided.

A supply assembly for use with a hydrant comprising a first supply valve adapted for coupling to a first supply line of the hydrant and a second supply valve adapted for coupling to a second supply line of the hydrant. A housing contains a first drain valve and a second drain valve. The first supply valve is coupled to the first drain valve for permitting water to be drained from the first supply line when a first outlet of the hydrant is off, and the second supply valve is coupled to the second drain valve for permitting water to be drained from the second supply line when a second outlet of the hydrant is off. The first supply valve is above the second supply valve to permit radially compact nesting of the first supply valve and the second supply valve. Related assemblies, valves and methods are provided.

An embodiment of a fluid valve includes a substantially flat face plate, a receptacle, a cavity, and a valve assembly. The receptacle is disposed in the face plate and has at least one protrusion each configured to engage a respective at least one groove of a valve-opening-and-fluid-dispensing device. The cavity has a front end in fluid communication with the receptacle, and has a rear end. And the valve assembly is disposed in the cavity, includes a first sealing ring, is configured to form a seal by urging the sealing ring against the rear end of the cavity in response to the valve-opening-and-fluid-dispensing device being absent from the receptacle, and is configured to allow fluid to flow into the rear end of the cavity in response to the valve-opening-and-fluid-dispensing device being disposed in the receptacle.

An embodiment of a fluid valve includes a substantially flat face plate, a receptacle, a cavity, and a valve assembly. The receptacle is disposed in the face plate and has at least one protrusion each configured to engage a respective at least one groove of a valve-opening-and-fluid-dispensing device. The cavity has a front end in fluid communication with the receptacle, and has a rear end. And the valve assembly is disposed in the cavity, includes a first sealing ring, is configured to form a seal by urging the sealing ring against the rear end of the cavity in response to the valve-opening-and-fluid-dispensing device being absent from the receptacle, and is configured to allow fluid to flow into the rear end of the cavity in response to the valve-opening-and-fluid-dispensing device being disposed in the receptacle.

A flow control valve for a liquid conduit, such as a fire hydrant valve for insertion in a fire hydrant conduit, comprises a fixed valve body mountable inside the liquid conduit, a displaceable valve body, and an actuator assembly operatively engageable with the displaceable valve body. The fixed valve body has a peripheral wall and defines a longitudinal passageway, and at least one upstream port and a downstream port. The displaceable valve body is inserted into the longitudinal passageway of the fixed valve body and is linearly displaceable therealong between a closed configuration and at least one open configuration. The actuator assembly is operable to linearly displace the displaceable valve body along the longitudinal passageway of the fixed valve body between the closed configuration and the at least one open configuration.

An anti-siphon system for use with an irrigation system, such as lawn sprinkling system is disclosed. The system includes a backflow prevention valve with a bonnet- and poppet valve system with a conical spring that biases a lower poppet valve head, and engages the valve body. The use of the conical spring simplifies the mechanism, while providing reliable backflow prevention.

A sanitary hydrant comprises an isolated reservoir that can be positioned below a freeze level at the location of installation. A piston within the isolated reservoir is operable to expel, during a downward stroke, stored fluid from the reservoir before actuating a valve that allows fluid to flow from a fluid supply source through the hydrant. On an upward stroke, the piston releases the valve and generates a negative pressure within the reservoir that draws fluid from within the hydrant into the reservoir.

A sanitary hydrant comprises an isolated reservoir that can be positioned below a freeze level at the location of installation. A piston within the isolated reservoir is operable to expel, during a downward stroke, stored fluid from the reservoir before actuating a valve that allows fluid to flow from a fluid supply source through the hydrant. On an upward stroke, the piston releases the valve and generates a negative pressure within the reservoir that draws fluid from within the hydrant into the reservoir.

A freeze resistant wall hydrant including an outdoor housing joined to the outer end of an outlet tube for securing to a building and a fitting joined to the inner end of the outlet tube for coupling to a water supply. The fitting includes a fluid closure valve having a valve part movable between first and second positions for closing and opening the valve. A stem extends through the outlet tube and has an outer end coupled to a handle of the outdoor housing and an inner end coupled to the valve part. The handle moves the valve part to close and open the valve. The outlet tube and the stem can each be made from a cross-linked polyethylene or flexible plastic to facilitate installation of the wall hydrant. Methods for using or resizing the wall hydrant are provided.