Abstract: An apparatus for distributing priming water equally to a multiplicity of sewer drain traps includes a hollow body member sealed with a top cap having a water inlet therethrough, the bottom of the body member provided with outlet fittings for connecting to a plurality of separate sewer line traps, each outlet fitting corresponding with a port communicating with the hollow interior of the body member, and a metering funnel member positioned in the hollow body member to receive water delivered from the water inlet, the metering funnel member arranged to deliver equal amounts of water received by the funnel member to each of the outlet ports and corresponding outlet fittings connected to a plurality of individual sewer line drain traps. Unused water outlets may be selectively plugged without adversely affecting continuous and even distribution of water received by the distribution apparatus to the remaining unplugged water outlets.

Abstract: An automatic sewer line trap priming assembly including a gap type, anti-siphoning conduit component. A shielded and directed jet at timed intervals directs priming water increments into a receiving funnel which communicates with the trap.

Abstract: A sewer line multiple trap priming system comprises a house line and a plurality of branch lines all communicating with each other and supplied with water under pressure. A plurality of makeup priming water lines are connected, one to each of the traps. In all but one of the branch lines pressure sensitive valves interconnect the branch lines and the makeup priming water lines. Upon a change in pressure in the branch lines by a predetermined increment, these valves are operable, to inject a charge of priming water into the priming water lines and hence into the traps. In said one of the branch lines, from time to time valve means withdraws water from the communicating branch lines in amount sufficient to exceed the pressure change increment and thereby operate the pressure sensitive valves. This insures the transmission of an adequate charge of priming water to the traps at all times.

Abstract: A water hammer arrester comprises a cylindrical body housing a piston for free sliding reciprocal movement and a connector for connection to a water conduit system which carries water under pressure. An abutment-bumper combination is interposed between piston and connector to avoid the ping which would be produced is these two elements of the assembly were to collide during reciprocation of the piston.

Abstract: A device for charging sever line traps automatically upon decrease in main line water pressure comprising a branch line having a piston valve member telescopically received over the end of an adjustable tubular member, the piston having a first seat for sealing engagement with the end of the tubular member under normal pressure conditions in the main line and a second seat for sealing engagement with the inlet end of the chamber in which the piston and tubular member are mounted when the pressure in the main line is shut off. The piston being unseated from both the end of the tubular member and the end of the chamber, thus permitting flow to the trap, when the main line water pressure is decreased. The piston includes a metering pin for metering the flow of water through the tubular member. Provision also is made for making running adjustments to the valve during its service life as required to compensate for changes in house line pressure.

Abstract: A multiple drain trap primer valve assembly. The assembly comprises a plumbing conduit system including a house line 10 carrying water under pressure and a plurality of branch lines 12 each serving the drain trap 14 of a particular plumbing fixture. A manifold 26 having multiple discharge openings is connected into the house line. Coupling means 30 couple the branch lines to the manifold, one to each opening. Each coupling means includes a flow orifice 44 of size predetermined to equalize the flow of priming water to the branch line. Time-clock controlled valve means 20 is positioned in the house line to open it to the flow of water at predetermined time intervals.

Abstract: A valve for proportioning hot and cold water flow in response to the pressure balance between the hot and cold water supply lines includes a piston which adjusts position in response to variation in the pressure ratio of the hot and cold water supplied to the valve, thereby maintaining a uniform temperature of the water delivered by the valve. Provision is made for preventing leakage of the respective hot and cold fluids within the valve, and for preventing "hammer" during operation of the valve.

Abstract: For use in pressurized fluid lines, an anti-siphon and back-flow prevention valve. A conduit is tapped into the line upstream of an outlet terminating in a ball-shaped housing. The housing receives check valve means arranged for insuring that fluid does not escape during normal operation of the line, but for admitting vacuum-breaking air in the event of line pressure loss.

Abstract: A valve assembly for the control of pressurized fluids. The assembly comprises a casing housing a valve chamber with communicating inlet and outlet ports. A valve seat and valve-operating subassembly is associated with one of the ports. The valve-operating subassembly comprises a valve body threaded into the casing adjacent the valve seat. The valve body has an axial bore which receives a headed shaft having a seal washer mounted on its head in separable engagement with the valve seat. Resilient means, e.g. a coil spring, urges the washer in the direction of engagement with the valve seat with a force less than the force of the pressurized fluid introduced into the chamber. The shaft and/or seal washer preferably are mounted for free rotation to minimize scuffing of the washer during operation of the valve.