A fire suppression sprinkler device 100 includes a sprinkler bulb 140, a nozzle manifold 160, and a conduit 190 for supplying fluid to the nozzle manifold 160. The sprinkler device 100 is arranged so that breakage of the sprinkler bulb 140 permits fluid communication from the interior of the conduit 180 to the nozzle manifold 160. The nozzle manifold 160 is disposed about the conduit 190.

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.

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.

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 concealed sprinkler can include a body that defines an outlet, a seal that seals the outlet, an activation element coupled with the seal, a housing, a cover plate, and a wall. The activation element changes from a first state to a second state responsive to a fire condition to allow the seal to be displaced from the outlet. The housing extends from a first housing end that extends from the body to a second housing end, and defines a chamber around the activation element. The cover plate is coupled with the second housing end. The wall extends towards the activation element to form an air flow channel to the activation element adjacent to the wall. At least one of the cover plate and the wall are removably coupled with the body.

A concealed sprinkler can include a body that defines an outlet, a seal that seals the outlet, an activation element coupled with the seal, a housing, a cover plate, and a wall. The activation element changes from a first state to a second state responsive to a fire condition to allow the seal to be displaced from the outlet. The housing extends from a first housing end that extends from the body to a second housing end, and defines a chamber around the activation element. The cover plate is coupled with the second housing end. The wall extends towards the activation element to form an air flow channel to the activation element adjacent to the wall. At least one of the cover plate and the wall are removably coupled with the body.

A fire suppression sprinkler assembly coupled to a mounting surface includes a sprinkler having a heat responsive element arranged adjacent a first end. A cover plate is positioned adjacent the heat responsive element and includes a thermally conductive cover layer. A reflective shield has a reflective interior surface. The reflective shield is positioned substantially opposite the cover plate adjacent the first end of the sprinkler such that heat reflects from the top plate towards the heat responsive element.

A fire suppression sprinkler assembly coupled to a mounting surface includes a sprinkler having a heat responsive element arranged adjacent a first end. A cover plate is positioned adjacent the heat responsive element and includes a thermally conductive cover layer. A reflective shield has a reflective interior surface. The reflective shield is positioned substantially opposite the cover plate adjacent the first end of the sprinkler such that heat reflects from the top plate towards the heat responsive element.

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.