Abstract: An inlet conduit assembly for a hose reel assembly includes a clip assembly that is structured to be accessible from the outer side of the frame assembly. The clip assembly is structured to be operated without the use of tools. The clip assembly, essentially, prevents the inlet conduit assembly from being moved axially once installed. In this configuration, a user may quickly and easily actuate the clip assembly to release or engage the inlet conduit assembly. Thus, a user may quickly and easily remove the inlet conduit assembly.

Abstract: An inlet conduit assembly for a hose reel assembly includes a clip assembly that is structured to be accessible from the outer side of the frame assembly. The clip assembly is structured to be operated without the use of tools. The clip assembly, essentially, prevents the inlet conduit assembly from being moved axially once installed. In this configuration, a user may quickly and easily actuate the clip assembly to release or engage the inlet conduit assembly. Thus, a user may quickly and easily remove the inlet conduit assembly.

Abstract: A utility cart frame assembly is provided. The frame assembly includes a handle assembly cross brace member and a wheel assembly with an axle. The cross brace member and the axle are coupled to, and are immediately adjacent, the tray. In this configuration, the handle assembly cross brace member and the axle provide support to the tray.

Abstract: An apparatus and method for automatic and remote testing of check valves and backflow preventers. Pressure sensors have ports in communication with chambers upstream and downstream from a check valve to be tested. The sensors may be pressure transducers or pressure switches, of single stage, differential, or "dead band" design. Zero or substantially zero liquid flow through the check valve is confirmed either by an existing water flow meter or an auxiliary water flow switch. Upstream and downstream pressures are sampled, and the differential pressure therebetween is compared with predetermined standards and a pass/fail report is rendered. The report may be stored and communicated by hard wire or wireless means, to a remote facility where like information is received from a plurality of check valve sites. One of the three disclosed embodiments teaches an apparatus and method for testing a backflow preventer including a pressure relief valve operating on the reduced pressure principle.

Abstract: An apparatus and method for automatic disablement of a pressure relief valve used in connection with a backflow preventer in a fire line. A normally open solenoid valve is included in a pressure sampling line, extending from an inlet, or upstream chamber to one side of the pressure relief valve. A water flow switch, interconnected to a power supply and the solenoid valve, is provided in the fire line. In response to water flowing through the fire line, the switch conducts, actuating the solenoid to a closed position. The solenoid thereby hydraulically isolates the inlet sensor line leading to the pressure relief valve. By maintaining high pressure in this portion of the sensor line, the pressure relief valve is effectively disabled. Thus, even if a check valve malfunction occurs, the pressure relief valve will not open and cannot cause a catastrophic loss of water pressure in the fire line.

Abstract: A check valve assembly, including a check valve and an associated check valve mounting flange. Additionally, a backflow preventer is shown, which uses a pair of check valve assemblies transversely positioned within a tubular housing. Also disclosed is a method for installing a downstream check valve to a mounting flange, located within a remote, outlet chamber of the backflow preventer housing. The check valve has an elongated base plate, generally elongated in shape. The mounting flange is provided with an elongated hole, sized and configured to pass a properly oriented downstream check valve during installation and removal procedures. The location and design of the downstream check valve assembly ensures that during backflow conditions, the check valve compresses against the mounting flange in sealing engagement.

Abstract: A water strainer, water meter, and crossover check valve structurally and functionally integrated within a single housing having a single access port. A water strainer, including a screened portion and a solid floor, diverts debris from the water flow path into a collection chamber in the bottom portion of the housing. The water strainer defines an interior volume within the housing, designed to pass strained water and protect the impeller assembly of the water meter located therein. A strainer outlet pipe, extending from an outlet port into the interior volume of the housing, may be included to house both the impeller and the check valve. The single access port provides for service of the interior components and removal of collected debris.

Abstract: A differential loading fluid check valve, including a unitized valve body having a single service port in its sidewall for selective access to the interior chamber of the check valve. Check valve subassemblies are installed and removed through the service port for valve assembly and service. The same valve body can be configured for either single or double check valve operation by adding or removing check valve subassemblies. Each check valve subassembly includes a base with an aperture, a pivotally mounted clapper, and an overlying pivotally mounted cam arm, spring biased against the movable end of the clapper. An arcuate surface on the cam arm is engaged by the clapper as it moves from a closed position to an open position, providing a beneficial differential reduction in the pressure drop, or loading, through the check valve.