Abstract: An isolation valve assembly comprises a valve body defining a first fluid port and a second fluid port opposing the first fluid port and at least one drain port disposed between the first fluid port and the second fluid port, an isolation valve disposed within the valve body and a handle operatively coupled to the isolation valve. The handle is movable to cause corresponding movement of the isolation valve between a first normal position where the isolation valve fluidly couples the first fluid port and the second fluid port, and a second drain position where the isolation valve fluidly couples the first fluid port and the at least one drain port and isolates the second fluid port.

Abstract: A system for remotely measuring the characteristics of water passing through a plumbing control device (PCD)) includes a sensor within the interior of the PCD. The sensor is configured to measure characteristics of the water to obtain measured data. The sensor is also linked to a microcontroller of the PCD. An antenna board is linked, and configured to transmit power, to both the microcontroller and the sensor. A mobile device is configured to locate the antenna board. The mobile device transmits power to the antenna board which, in turn, transmits power to the microcontroller and the sensor. When power is not being transmitted from the antenna board, the microcontroller and the sensor are powered off.

Abstract: A wireless communication system includes a plurality of sensors and a device. Each sensor is configured to measure data and communicate over a network using low power signal communication. The device is connected to an in-wall power source and configured to wirelessly communicate over the network using low power signal communication. Further, the device is configured to transmit data from the sensors to a remote gateway using high power signal communication.

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 retention clip secures a valve shaft adapter collar to a valve actuator. The retention clip includes a central bar having opposing arms extending therefrom. Each arm includes a resilient spring clip junction attached to the central bar, a lug coupled to the resilient spring clip for receiving pliers, and an end extending from the lug and configured for insertion through a hole in the valve shaft adapter collar into a pocket of the valve actuator for retaining the valve shaft adapter collar therein. The pliers can be used to compress and consequently retract the ends into the holes to disassociate the valve shaft adapter collar from the valve actuator and/or insert the valve shaft adapter collar into the valve actuator.

Abstract: A water heating and treatment system includes a water heater, a hot water outflow line from the water heater, and a cold water supply line to supply water to the water heater. The cold water supply line includes at least one of an anti-scale device, and a UV sanitation lamp. A mixing station supplies a temperature regulated heated water to one or multiple temperature zones. A mixing station supplies heated water to at least a first temperature zone at a first hot water temperature. The water heater, the anti-scale device, the UV sanitation lamp and the mixing station are contained in a single enclosure having at least one sliding transparent wall through which components can be viewed. A plurality of pipe connections passing through a rear panel of said single enclosure are also described.

Abstract: A water heating and treatment system with UV lamp water treatment sanitation for suppression of pathogens and undesired bacterial content in a domestic hot water system includes a water heater, and a cold water supply line to supply water to the water heater. The cold water supply line includes a UV sanitation lamp. A single or multiple temperature regulating mixing station supplies a temperature regulated heated water to one or multiple temperature zones. A three-way return water diverter valve provides a portion of a re-circulated hot water from a hot water recirculation line including a temperature sensor to the single or multiple temperature regulating mixing station and a remaining portion of the re-circulated hot water to the drain. A method for treating hot water to suppress pathogens and undesired bacterial content in a domestic hot water system is also described.

Abstract: A snap-fit lever for actuation of a valve assembly has an elongated valve stem with a ball. The snap-fit lever has a handle portion and a seat portion coupled to the handle portion. The seat portion defines an entry, a retention cavity, and a passage from the entry to the retention cavity. The passage guides the ball from the entry to the retention cavity. The snap-fit lever has deflectable fingers protruding from the seat portion to form part of the retention cavity and the passage. The deflectable fingers deflect to allow the ball to move from the passage into the retention cavity and capture the ball. The deflectable fingers enable rotation of the handle portion about a first axis of the elongated valve stem and allow rotation of the handle portion about a second axis perpendicular to the first axis for moving the elongated valve stem into an actuated position.

Abstract: A water heating and treatment system with UV lamp water treatment sanitation for suppression of pathogens and undesired bacterial content in a domestic water system includes a water heater, and a cold water supply line to supply water to the water heater. The cold water supply line includes a UV sanitation lamp. A single or multiple temperature regulating mixing station supplies a temperature regulated heated water to one or multiple temperature zones. A water heater controller causes an activation of the water heater sanitation loop and a water temperature of the water heater to increase momentarily to a sanitization temperature above 151° F. (66° C.) for one or more periods of at least two minutes in a sanitation loop mode. A method for treating hot water to suppress pathogens including undesired bacterial content in a domestic water system is also described.

Abstract: A backflow preventer for preventing a reverse flow of water in a plumbing system including a body having an inlet and an outlet. The body forms an intermediate zone between the inlet and outlet. An inlet check valve prevents the reverse flow of water from the intermediate zone through the inlet. An outlet check valve prevents the flow of water from the outlet into the intermediate zone. An inlet pressure sensor, an intermediate pressure sensor and an outlet pressure sensor provide readings for the respective zones. A controller monitors a pressure differential between the outlet pressure zone and the intermediate pressure zone to compare the pressure differential to a pre-set range. The controller generates a warning/error message when the pressure differential is outside the pre-set range. The controller can also monitor an inlet pressure in the inlet zone to generate a message if the inlet pressure varies inappropriately.

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: 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 valve assembly with a spring retention assembly including an elongated cylinder portion having an open threaded end and a closed end and an elongated piston portion having a free end and a threaded tab end configured to thread through the open threaded end and, thereby, be slideably captured in the cylinder portion. A spring couples to the body portion and the piston portion to provide a force to urge the body portion and the piston away from one another, wherein the closed end and the free end are similarly shaped so that the spring retention assembly can be reversibly mounted to a valve member that can also be reversibly mounted.

Abstract: A backflow prevention assembly includes a body forming two buckets, wherein flow passes through the body from an inlet to an outlet along an axis and consecutively through each of the buckets. A single zone test cover encloses a first of the buckets to form a single zone chamber. A dual zone test cover encloses a second of the buckets with a dual zone cartridge assembly therein. The dual zone test cover has two test cocks. The dual zone cartridge assembly includes a frame having a valve seat, wherein the frame includes a lumen providing fluid communication from a dual zone chamber upstream of the valve seat to a first of the two test cocks of the dual zone test cover, and wherein the second of the two test cocks of the dual zone test cover is in fluid communication with the dual zone chamber downstream of the valve seat.

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: A system for remotely measuring the characteristics of water passing through a plumbing control device (PCD) includes a sensor configured to measure characteristics of the water to obtain measured data. The sensor is also linked to a microcontroller of the PCD. An antenna board is linked, and configured to transmit power, to both the microcontroller and the sensor. The antenna board is configured to receive power transmitted from a mobile device and, in turn, transmit power to the microcontroller and the sensor. When power is not being transmitted from the antenna board, the microcontroller and the sensor may be powered off.

Abstract: A water heating and treatment system includes a water heater, a hot water outflow line from the water heater, and a cold water supply line to supply water to the water heater. The cold water supply line includes at least one of an anti-scale device, and a UV sanitation lamp. A mixing station supplies a temperature regulated heated water to one or multiple temperature zones. The water heater, the anti-scale device, the UV sanitation lamp, and the mixing station are contained in a single enclosure having at least one transparent wall through which components can be viewed. A method for treating hot water to suppress pathogens and undesired bacterial content in a domestic water system is also described.

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 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: Systems and methods for controlling a heating Technologies for controlling a heating unit are disclosed. In embodiments, the systems and methods determine a heating unit target temperature based at least in part on a duty cycle of at least one thermostat. The systems and methods may then determine a simulated outdoor temperature corresponding to the heating unit target temperature, and a resistance value corresponding to the simulated outdoor temperature. The systems and methods may then cause a resistance signal including or indicative of the resistance value to be provided to an outdoor temperature input for the heating unit, e.g., to cause the heating unit to modulate to the heating unit target temperature.