A dry fire protection sprinkler assembly. The sprinkler assembly includes an elongate tubular outer housing having a first end and a second end opposite the first end. The second end of the housing defines a fluid discharge end of the sprinkler assembly having an outlet opening. A fluid deflection member is affixed to the housing at a preferably fixed distance from the outlet opening. The sprinkler assembly and the fluid deflection member define an unencumbered fluid flow path for a column of fluid discharge from the outlet opening. The fluid deflection member includes at least one tab to act on the unencumbered column of fluid discharge.

An automatic dry horizontal sidewall fire protection sprinkler assembly for residential fire protection. The sprinkler assembly includes an elongate tubular outer housing having a first end and a second end. The second end of the housing defines an outlet opening and an internal channel and contact surface proximate the outlet opening. A fluid deflection member is coupled to the housing at a fixed distance from the outlet opening. An internal fluid control assembly includes an ejectable member that is ejected out the outlet opening and displaced out of the fluid flow path between the housing and the fluid deflection member. The sprinkler assembly provides a plurality of coverage areas suitable for residential fire protection over a plurality of nominal operating temperatures up to 200° F.

A sprinkler assembly that includes a sprinkler frame, preferably formed from a plastic material and a deflector assembly that translates with respect to the sprinkler frame upon actuation of the sprinkler from an unactuated state. Moreover, the deflector assembly includes a first portion which axially translates relative to the sprinkler outlet in the actuated state of the sprinkler assembly and a second portion that remains fixed with respect to the sprinkler outlet to support a thermally responsive trigger and seal assembly in an unactuated state of the sprinkler assembly.

A sprinkler assembly that includes a sprinkler frame, preferably formed from a plastic material and a deflector assembly that translates with respect to the sprinkler frame upon actuation of the sprinkler from an unactuated state. Moreover, the deflector assembly includes a first portion which axially translates relative to the sprinkler outlet in the actuated state of the sprinkler assembly and a second portion that remains fixed with respect to the sprinkler outlet to support a thermally responsive trigger and seal assembly in an unactuated state of the sprinkler assembly.

A fire-fighting nozzle comprising a tubular inlet having an inlet opening, said inlet extending along a longitudinal axis from said inlet opening toward a shut-off valve, a tubular outlet having at least one nozzle opening, said outlet extending along a transverse axis transverse to said longitudinal axis toward said nozzle opening, the sealing valve being arranged between the inlet and the nozzle opening and sealing the outlet in a sealing region with respect to the inlet, characterized in that a radial distance of the sealing region from the longitudinal axis is smaller than or equal to a smallest radial distance of the inner circumferential surface of the inlet opening from the longitudinal axis in a region between the inlet opening and the sealing region.

A fire-fighting nozzle comprising a tubular inlet having an inlet opening, said inlet extending along a longitudinal axis from said inlet opening toward a shut-off valve, a tubular outlet having at least one nozzle opening, said outlet extending along a transverse axis transverse to said longitudinal axis toward said nozzle opening, the sealing valve being arranged between the inlet and the nozzle opening and sealing the outlet in a sealing region with respect to the inlet, characterized in that a radial distance of the sealing region from the longitudinal axis is smaller than or equal to a smallest radial distance of the inner circumferential surface of the inlet opening from the longitudinal axis in a region between the inlet opening and the sealing region.

A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed.

A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed.

A flexible dry sprinkler has an inlet having an inlet orifice, an outlet, a flexible tube having a first end attached to the inlet and a second end attached to the outlet, an inlet seal for sealing the inlet orifice, whereby, when the inlet seal releases, fluid is permitted to flow from the inlet orifice to the outlet through the flexible tube, and a yoke positioned in the inlet, the yoke having a plurality of spaced-apart legs that permit the fluid to flow passed the yoke toward the outlet.

A flexible dry sprinkler has an inlet having an inlet orifice, an outlet, a flexible tube having a first end attached to the inlet and a second end attached to the outlet, an inlet seal for sealing the inlet orifice, whereby, when the inlet seal releases, fluid is permitted to flow from the inlet orifice to the outlet through the flexible tube, and a yoke positioned in the inlet, the yoke having a plurality of spaced-apart legs that permit the fluid to flow passed the yoke toward the outlet.