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 shut-off element of a hydrant with a hydrant axis. The shut-off element has a valve stem that is axially movable substantially along the hydrant axis, and a main valve body that can be brought into sealing contact with a sealing surface of the hydrant. The shut-off element has a damping system that is inserted between the main valve body and the valve stem or in a section of the valve stem or between an actuating element of the valve stem and the valve stem or in the actuating element itself, so that the main valve body is coupled to the valve stem axially dampened by the damping system along the hydrant axis.

A shut-off element of a hydrant with a hydrant axis. The shut-off element has a valve stem that is axially movable substantially along the hydrant axis, and a main valve body that can be brought into sealing contact with a sealing surface of the hydrant. The shut-off element has a damping system that is inserted between the main valve body and the valve stem or in a section of the valve stem or between an actuating element of the valve stem and the valve stem or in the actuating element itself, so that the main valve body is coupled to the valve stem axially dampened by the damping system along the hydrant axis.

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.