Abstract: A low pressure, early suppression fast response sprinkler includes a generally tubular body having an inlet ends, an opposing discharge end and an internal passageway extending between the inlet and discharge ends with a K factor greater than 16 where the K factor equals the flow of water in gallons per minute through the internal passageway divided by the square root of the pressure of water fed into the tubular body in pounds per square inch gauge. A deflector is coupled with the tubular body and spaced from and generally aligned with the discharge end of the internal passageway so as to be impacted by a flow of water issuing in a column from the discharge end upon activation of the sprinkler. The deflector is configured and positioned to deflect the flow of water generally radially outwardly all around the sprinkler.

Abstract: A fire sprinkler piping system fitting including a polymeric body having at least a first tubular branch, a second tubular branch, and a third tubular branch. Each of the first, second and third tubular branches extend outwardly from a common junction. The first and second tubular branches are collinear and the third tubular branch is generally perpendicular to the first and second tubular branches. Each of the first, second and third tubular branches have a distal end opposite from the common junction. The fitting includes pair of internally threaded metal inserts. Each insert is at least partially molded into the distal end of a separate one of a first and second tubular branches. Each of the internally threaded inserts has a distal outer surface facing generally away from the common junction. The distal outer surfaces of the pair of internal threaded metal inserts is spaced apart a distance of between three inches and four inches.

Abstract: A low pressure, early suppression fast response sprinkler includes a generally tubular body having an inlet end, an opposing discharge end and an internal passageway extending between the inlet and discharge ends with a K factor greater than 16 where the K factor equals the flow of water in gallons per minute through the internal passageway divided by the square root of the pressure of water fed into the tubular body in pounds per square inch gauge. A deflector is coupled with the tubular body and spaced from and generally aligned with the discharge end of the internal passageway so as to be impacted by a flow of water issuing in a column from the discharge end upon activation of the sprinkler. The deflector is configured and positioned to deflect the flow of water generally radially outwardly all around the sprinkler.

Abstract: Multilayer fluid conduits are formed by adhering to a tubular outer surface of a metal pipe, a thermoplastic outer layer. The outer layer permits ends of the multilayer conduit to be joined together in leak-proof fluid conduit systems simply by adhering the conduit ends with compatible thermoplastic fittings. For fire protection systems, the preferred metal is steel, the preferred thermoplastic is CPVC and the preferred adhesive is heat activated. The adhesive coated metal pipe is preheated and the CPVC is extruded onto the outer surface of the heated metal pipe. Through the use of fire resistive CPVC, the multilayer conduit systems of the present invention can be installed in more severe fire threat areas than can existing, all plastic piping, including all CPVC piping systems. The conduit is assembled into systems on site simply by cutting and direct bonding with ordinary, all plastic fittings using appropriate bonding agents such as solvent based adhesives.

Abstract: Multilayer fluid conduits are formed by adhering to a tubular outer surface of a metal pipe, a thermoplastic outer layer. The outer layer permits ends of the multilayer conduit to be joined together in leak-proof fluid conduit systems simply by adhering the conduit ends with compatible thermoplastic fittings. For fire protection systems, the preferred metal is steel, the preferred thermoplastic is CPVC and the preferred adhesive is heat activated. The adhesive coated metal pipe is preheated and the CPVC is extruded onto the outer surface of the heated metal pipe. Through the use of fire resistive CPVC, the multilayer conduit systems of the present invention can be installed in more severe fire threat areas than can existing, all plastic piping, including all CPVC piping systems. The conduit is assembled into systems on site simply by cutting and direct bonding with ordinary, all plastic fittings using appropriate bonding agents such as solvent based adhesives.

Abstract: Multilayer fluid conduits are formed by adhering to a tubular outer surface of a metal pipe, a thermoplastic outer layer. The outer layer permits ends of the multilayer conduit to be joined together in leak-proof fluid conduit systems simply by adhering the conduit ends with compatible thermoplastic fittings. For fire protection systems, the preferred metal is steel, the preferred thermoplastic is CPVC and the preferred adhesive is heat activated. The adhesive coated metal pipe is preheated and the CPVC is extruded onto the outer surface of the heated metal pipe. Through the use of fire resistive CPVC, the multilayer conduit systems of the present invention can be installed in more severe fire threat areas than can existing, all plastic piping, including all CPVC piping systems. The conduit is assembled into systems on site simply by cutting and direct bonding with ordinary, all plastic fittings using appropriate bonding agents such as solvent based adhesives.

Abstract: An extended coverage ceiling sprinkler includes a generally tubular body having an inlet open end and an opposing, outlet open end with a minimal internal diameter greater than 0.65 inches and a K-factor of between about 14 and about 15. A plug at least essentially closes the outlet open end and an element releasably retains the plug in the outlet end. A deflector support extends away from the outlet end of the tubular body and a deflector is coupled to the tubular body through the deflector support. The deflector has a major surface facing, spaced from and aligned with the outlet open end with a circular outer perimeter less than 1.7 inches in outer diameter and a central area without water passing openings therethrough at least 0.75 inches in diameter. Slots extend generally radially inwardly from the perimeter and surround the central area which is slotless. The ratio of deflector outer diameter to slot depth is greater than 10 and up to about 14.