Abstract: A flush valve handle assembly and a check valve assembly are provided for use in a flush valve, wherein the flush valve handle assembly and check valve assembly include improved components. The flush valve handle assembly includes a ball member and a plunger rod, one or both of which can be constructed of a polymeric material. An improved flush file retainer is provided which includes at least one ear integrally formed around a circumferential portion thereof. This at least one ear secures the flush file retainer in a snap-fit configuration in the socket-coupling. The check valve assembly includes a piston/seal having a plurality of ribs having a tapered design extending outwardly from a circumferential periphery of the piston/seal. The piston/seal includes a sealing material located on a top surface thereof. This sealing material can be a thermoplastic elastomeric coating material.

Abstract: A flush valve handle assembly and a check valve assembly are provided for use in a flush valve, wherein the flush valve handle assembly and check valve assembly include improved components. The flush valve handle assembly includes a ball member and a plunger rod, one or both of which can be constructed of a polymeric material. An improved flush file retainer is provided which includes at least one ear integrally formed around a circumferential portion thereof. This at least one ear secures the flush file retainer in a snap-fit configuration in the socket-coupling. The check valve assembly includes a piston/seal having a plurality of ribs having a tapered design extending outwardly from a circumferential periphery of the piston/seal. The piston/seal includes a sealing material located on a top surface thereof. This sealing material can be a thermoplastic elastomeric coating material.

Abstract: A flush valve diaphragm of a flush valve includes a body having a segmented insert within a flexible body portion and a central passageway. The body further includes a peripheral sealing portion with the flexible body portion within the peripheral sealing portion. The peripheral sealing portion can include an integral filter, an exit chamber and a bypass arrangement, such that water flowing through the filter flows through the bypass arrangement. The integral filter version will retard clogging of the bypass arrangement. The segmented insert includes a plurality of trapezoidal members with outward protrusions. The plurality of trapezoidal members are connected to each other on their outermost edge by a runner.

Abstract: A flush valve diaphragm of a flush valve includes a body having a segmented insert within a flexible body portion and a central passageway. The body further includes a peripheral sealing portion with the flexible body portion within the peripheral sealing portion. The peripheral sealing portion can include an integral filter, an exit chamber and a bypass arrangement, such that water flowing through the filter flows through the bypass arrangement. The integral filter version will retard clogging of the bypass arrangement. The segmented insert includes a plurality of trapezoidal members with outward protrusions. The plurality of trapezoidal members are connected to each other on their outermost edge by a runner.

Abstract: A flush valve diaphragm of a flush valve includes a body having a segmented insert within a flexible body portion and a central passageway. The body further includes a peripheral sealing portion with the flexible body portion within the peripheral sealing portion. The peripheral sealing portion can include an integral filter, an exit chamber and a bypass arrangement, such that water flowing through the filter flows through the bypass arrangement. The integral filter version will retard clogging of the bypass arrangement. The segmented insert includes a plurality of trapezoidal members with outward protrusions. The plurality of trapezoidal members are connected to each other on their outermost edge by a runner.

Abstract: A vacuum breaker that includes a substantially cylindrical tubular body having a first end and a second end, wherein the first end has a rim extending away from the body and a ledge extending axially away from the rim thus defining an L-shaped profile. A retainer bead extends axially away from an end of the ledge toward the vacuum breaker body, wherein the retainer bead is adapted to provide a friction fit for releasably attaching a flow control insert to the first end of the body of the vacuum breaker. The second end of the body includes a plurality of lip seals, wherein each lip seal defines a slit with a molded hinged member at an end thereof. The hinged member is preferably in the shape of a hole to prevent tearing and maintain the correct slit length.

Abstract: A diaphragm assembly for use in conventional diaphragm-type flush valves includes a flexible diaphragm body having a first side and a second side and a bypass orifice filter insert defined in the diaphragm body. The second side of the diaphragm body includes an annular protrusion and a plurality of protruding ribs, wherein a recess area is defined between the rib and the protrusion. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve. A method for controlling pressure differences across the diaphragm body is also disclosed.

Abstract: A flush valve handle assembly and a check valve assembly are provided for use in a flush valve, wherein the flush valve handle assembly and check valve assembly include improved components. The flush valve handle assembly includes a ball member and a plunger rod, one or both of which can be constructed of a polymeric material. An improved flush file retainer is provided which includes at least one ear integrally formed around a circumferential portion thereof. This at least one ear secures the flush file retainer in a snap-fit configuration in the socket-coupling. The check valve assembly includes a piston/seal having a plurality of ribs having a tapered design extending outwardly from a circumferential periphery of the piston/seal. The piston/seal includes a sealing material located on a top surface thereof. This sealing material can be a thermoplastic elastomeric coating material.

Abstract: A flush valve diaphragm of a flush valve includes a body having a segmented insert within a flexible body portion and a central passageway. The body further includes a peripheral sealing portion with the flexible body portion within the peripheral sealing portion. The peripheral sealing portion can include an integral filter, an exit chamber and a bypass arrangement, such that water flowing through the filter flows through the bypass arrangement. The integral filter version will retard clogging of the bypass arrangement. The segmented insert includes a plurality of trapezoidal members with outward protrusions. The plurality of trapezoidal members are connected to each other on their outermost edge by a runner.

Abstract: A diaphragm assembly for use in conventional diaphragm-type flush valves includes a flexible diaphragm body having a first side and a second side and a bypass orifice filter insert defined in the diaphragm body. The second side of the diaphragm body includes an annular protrusion and a plurality of protruding ribs, wherein a recess area is defined between the rib and the protrusion. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve. A method for controlling pressure differences across the diaphragm body is also disclosed.

Abstract: A diaphragm assembly for use in conventional diaphragm-type flush valves includes a flexible diaphragm body having a first side and a second side and a bypass orifice filter insert defined in the diaphragm body. The second side of the diaphragm body includes an annular protrusion and a plurality of protruding ribs, wherein a recess area is defined between the rib and the protrusion. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve. A method for controlling pressure differences across the diaphragm body is also disclosed.

Abstract: A diaphragm assembly for use in conventional diaphragm-type flush valves includes a flexible diaphragm body having a first side and a second side and a bypass orifice filter insert defined in the diaphragm body. The second side of the diaphragm body includes an annular protrusion and a plurality of protruding ribs, wherein a recess area is defined between the rib and the protrusion. When a pressure difference is applied across the diaphragm body, the second side of the diaphragm body is concave and the first side of the diaphragm body is convex, whereby a distance between the rib and the protrusion decreases in order to prevent the diaphragm body from closing two quickly against a valve seat of a flush valve. A method for controlling pressure differences across the diaphragm body is also disclosed.