Abstract: A leak detection and response system includes a valve assembly with a housing defining an internal passageway. The valve assembly includes an internal inlet port, an internal outlet port, a valve port assembly, an external inlet port, and an external outlet port each in fluid communication with the internal passageway. The valve assembly includes a first sensor port disposed either between the external outlet port and the internal inlet port, or between the external inlet port and the internal outlet port. The valve assembly includes a first leak sensor positioned in the first sensor port for generating a signal indicating a presence of water. The valve assembly includes a controller configured to receive the signal from the first leak sensor, and control the valve assembly to align the valve port assembly to block water flow from the external inlet port.

Abstract: Fluid detection systems and methods using the same are disclosed. In embodiments the fluid detection systems include a sensor module and an electronics module. The sensor module includes a sensor housing that includes a liquid flow path and a sensor element disposed around at least part of the liquid flow path. The sensor element can detect a capacitance of the liquid flow path and provide a sensor signal to a controller in the electronics module. The electronics module can determine a detected capacitance in the liquid flow path based at least in part on the sensor signal, and can determine whether a wet event has occurred based on a comparison of the detected capacitance to a threshold capacitance. Methods using the fluid detection systems and fluid supply systems including the fluid detection systems are also disclosed.

Abstract: A check cover assembly for a backflow prevention assembly having a body defining an interior housing a test cock. The check cover assembly includes a ball with a central aperture and a complementary groove in an outer circumference of the ball as well as a base including a shroud portion housing the ball to create a ball valve. The shroud portion defines an access gap for accessing an actuation feature slot with a landkey of the ball valve and a threaded opening. A coupling is attached to the threaded opening in fluid communication with the interior for connecting to testing equipment. The actuation feature is used to open and close the ball valve.

Abstract: A sprinkler backflow alert system includes a sprinkler system, a building fire panel, a backflow preventor including at least one shut-off valve, a fluid detection system, and a tamper switch. The backflow preventor may be fluidly coupled upstream of the sprinkler system. The fluid detection system is configured to detect a discharge of water from the backflow preventor and generate a water discharge signal corresponding to the backflow discharge. The tamper switch is configured to detect a change in a position of the at least one shut-off valve and generate a tamper signal in the event the at least one shut-off valve is closed or partially closed. When a backflow discharge event occurs, a signal is sent to the fire panel triggering the building fire alarm as well as sending an alert to the local fire department and facility owner.

Abstract: The present disclosure is generally directed to a lavatory carrier assembly. The assembly includes a first leg including an upper member, a lower member, and a waste line access port member; a second leg; and a horizontal spacing member coupled to the first leg and the second leg. The waste line access port member defines an opening to receive a waste pipe. The waste line access port member also defines an upper and lower slots to slidably receive the upper and lower members of the first leg in a generally horizontal manner.

Abstract: Stabilized indicator compositions, and systems and methods using the same are described. In embodiments the stabilized indicator compositions include a solvent, an indicator, a stabilizer for the indicator, and optionally a buffer. In embodiments the indicator is or includes N,N-diethyl-p-phenylene diamine (DPD). Systems and methods utilizing the stabilized indicator composition to determine an amount of at least one constituent in a test sample (e.g., water) are also described. In embodiments, the systems and methods remove the stabilizer from the stabilized indicator composition to produce a fluid flow containing un stabilized indicator, which is then combined with a fluid from a sample source to form a test sample for analysis.

Abstract: An adapter device and/or a thermostat device for use during installation and testing of in-floor heating systems. The adapter device allows for temporary electrical interconnection between a mat and an alternating current (AC) power source, and includes at least one switch configured to actuate based on a user-supplied force (e.g., a finger press) to temporarily electrically couple the mat to an AC power source. The at least one switch is further configured to automatically de-actuate in the absence of the user-supplied force to electrically decouple the mat from the AC power source. The thermostat device includes at least one integrated power measurement circuit for testing and diagnostics of an in-floor heating system.

Abstract: A plumbing box for mounting a plumbing device having a front plate defining a central opening and screw holes. A frame extends from the front plate and has a rear support that defines three anchor holes aligned with the screw holes. Adjustment screws extend between each of the screw holes and the anchor holes so that each of the adjustment screws can freely rotate. A backplate mounts on the adjustment screws by threaded bores so rotation of any of the adjustment screws moves the backplate to a desired position within the frame.

Abstract: An excess flow valve is disclosed for interrupting fluid flow when a predetermined rate is exceeded. The valve includes a housing defining a passageway between first and second openings and a valve seat disposed therein. The valve seat defines a central opening with an interior sealing surface. A shutoff element is mounted within the passageway and is movable along a flow axis between an open position, permitting flow through the central opening, and a closed position, sealing against the interior surface to block flow. A biasing element urges the shutoff element toward the open position during normal operation. When differential pressure across the valve surpasses a threshold, the shutoff element is driven into sealing engagement with the valve seat. In some embodiments, guiding arms extend from the shutoff element to maintain alignment, and the valve seat may comprise a thermally responsive polymer that expands under heat to further restrict flow.

Abstract: A torque limiting coupling assembly shields a valve actuator from abnormally high levels of torque. In normal operation, an actuator coupling transfers a driving torque from an actuator coupling to a valve shaft coupling and the valve shaft coupling engenders a shaft torque on a shaft of a valve. In torque actuated operation, when a counter torque applied to the shaft coupling exceeds a threshold value, the actuator coupling freely rotates relative to the valve shaft coupling and the driving torque is transferred to a biasing element of the torque limiting coupling assembly rather than to the valve shaft coupling, thereby shielding the valve or the actuator from high levels of torque.

Abstract: A sensor cartridge assembly for coupling in a fluid network. The cartridge assembly includes a tubular body including a spoke extending radially inward and distally out of the tubular body, and a threaded hollow end formed on the spoke. The spoke forms a conduit extending from an intermediate point of the tubular body into the threaded hollow end. The cartridge assembly includes a sensor assembly including a sensor head and a sensor lead extending from the sensor head through the conduit. Further, the cartridge assembly includes a nut threaded to the threaded hollow end to form a chamber, the nut including a distal annular rim. The sensor head is retained in the chamber by the distal annular rim of the nut so that the conduit and, thereby the sensor lead, are sealed from fluid in the fluid network.

Abstract: Systems for isolating a region of a water distribution network are disclosed. In embodiments the systems and methods utilize at least one control valve system that includes a valve, a pressure sensor, an actuator, and a controller. The controller determines a water pressure at the control valve system based at least in part on a sensor signal from the pressure sensor. When the detected pressure is less than or equal to a low pressure threshold the controller issued a control signal that causes the actuator to move the valve to a fully closed position. Multiple control valve systems may be employed to isolate a region of a water distribution network. Methods of isolating a portion of a water distribution network, water distribution network including a control valve system, and control valve systems for use in water distribution networks are also disclosed.

Abstract: A mixing valve including a body having first and second inlets, an outlet, and a mixing chamber. A first valve seat is located between the first inlet and the mixing chamber, and a second valve seat is located between the second inlet and the mixing chamber. A shuttle is moveable in the mixing chamber between the first and second valve seats and includes a first plug facing the first valve seat and a second plug facing the second valve seat. The plugs have trim surfaces that are one of, or a combination of, a fast-opening shape, a linear shape, and an equal percentage shape.

Abstract: A bidirectional excess flow valve for automatically stopping delivery of a fluid from a supply in a fluid network. The valve has a housing defining an interior forming a fluid passageway along a flow axis between a first opening and a second opening. The valve also has a valve seat in the interior, the fluid passageway extending through the valve seat, and a first and second shutoff element disposed on opposite sides of the valve seat. The shutoff elements are set apart from the valve seat assembly in an open position to allow flow through the fluid passageway. In a closed position, the first or second shutoff element is configured to move against the valve element assembly to close the fluid passageway when flow through the fluid passageway exceeds a predetermined level.

Abstract: A bidirectional excess flow valve for automatically stopping delivery of a fluid from a supply in a fluid network. The valve has a housing defining an interior forming a fluid passageway along a flow axis between a first opening and a second opening. The valve also has a valve seat in the interior, the fluid passageway extending through the valve seat, and a first and second shutoff element disposed on opposite sides of the valve seat. The shutoff elements are set apart from the valve seat assembly in an open position to allow flow through the fluid passageway. In a closed position, the first or second shutoff element is configured to move against the valve element assembly to close the fluid passageway when flow through the fluid passageway exceeds a predetermined level.

Abstract: Fluid detection systems and methods using the same are disclosed. In embodiments the fluid detection systems include a sensor module and an electronics module. The sensor module includes a sensor housing that includes a liquid flow path and a sensor element disposed around at least part of the liquid flow path. The sensor element can detect a capacitance of the liquid flow path and provide a sensor signal to a controller in the electronics module. The electronics module can determine a detected capacitance in the liquid flow path based at least in part on the sensor signal, and can determine whether a wet event has occurred based on a comparison of the detected capacitance to a threshold capacitance. Methods using the fluid detection systems and fluid supply systems including the fluid detection systems are also disclosed.