A fire suppression system that includes a non-rigid pouch, a quantity of suppressant, a quantity of gas, and a pressurized gas source. The non-rigid pouch that includes an exterior surface and an interior space. The quantity of suppressant, the quantity of gas, and the pressurized gas source is contained within said interior space. The pressurize gas source is configured to increase the internal pressure of the non-rigid pouch by injecting gas into the interior space. The non-rigid pouch is configured to rupture when the internal pressure exceeds a predetermined threshold pressure.

A sprinkler assembly includes a connection fitting and a fire protection sprinkler. The connection fitting includes a tubular member with a first insertion end and a second insertion end with an internal conduit extending between the first and second insertion end along a longitudinal axis, the tubular member including an exterior surface and an inner surface, the inner surface defining a sealing surface between the first and second insertion ends circumscribed about the longitudinal axis and including a gripping portion axially spaced from the sealing surface. The fire protection sprinkler has a body defining an inlet and an outlet, a deflector spaced from the outlet, the body having an outer encasing surface surrounding the longitudinal axis and including a leading portion and a trailing portion for insertion in the second insertion end with the leading portion received within the sealing surface before the trailing portion engages the gripping portion.

A sprinkler assembly includes a connection fitting and a fire protection sprinkler. The connection fitting includes a tubular member with a first insertion end and a second insertion end with an internal conduit extending between the first and second insertion end along a longitudinal axis, the tubular member including an exterior surface and an inner surface, the inner surface defining a sealing surface between the first and second insertion ends circumscribed about the longitudinal axis and including a gripping portion axially spaced from the sealing surface. The fire protection sprinkler has a body defining an inlet and an outlet, a deflector spaced from the outlet, the body having an outer encasing surface surrounding the longitudinal axis and including a leading portion and a trailing portion for insertion in the second insertion end with the leading portion received within the sealing surface before the trailing portion engages the gripping portion.

A sprinkler head accessory includes an inner ring attached to a sprinkler head and an outer ring hiding the edge of a ceiling hole through which the sprinkler head passes. The inner ring has a partition portion facing the outer ring with a gap therebetween. A ventilation portion constituted by the gap through which the indoor side of a ceiling board and the back side of the ceiling board communicate with one another is provided between the outer ring and the partition portion.

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 sprinkler assembly that includes a sprinkler frame, preferably formed from a plastic material. The sprinkler frame has a proximal portion, a distal portion, an external surface and an internal surface. The internal surface defines an internal passageway extending from an inlet formed in the proximal portion to an outlet formed in the distal portion to define a longitudinal sprinkler axis of the sprinkler assembly. A support member is preferably formed about the distal portion of the frame for supporting a deflector assembly with a pair of projection members. A deflector assembly including a deflector member and a receiving structure is engaged with the projection members to locate the deflector member at a fixed distance from the outlet of the sprinkler frame.

A sprinkler assembly that includes a sprinkler frame, preferably formed from a plastic material. The sprinkler frame has a proximal portion, a distal portion, an external surface and an internal surface. The internal surface defines an internal passageway extending from an inlet formed in the proximal portion to an outlet formed in the distal portion to define a longitudinal sprinkler axis of the sprinkler assembly. A support member is preferably formed about the distal portion of the frame for supporting a deflector assembly with a pair of projection members. A deflector assembly including a deflector member and a receiving structure is engaged with the projection members to locate the deflector member at a fixed distance from the outlet of the sprinkler frame.

A thermal trigger assembly for remote mechanical actuation of another fire protection system component includes an activation component having a base and a movable member. A bias member biases the movable member from a preactivation to an activated position with respect to the base. A thermally responsive element retains the movable member in the preactivation position until a predetermined thermodynamic condition is reached, when the thermally responsive element loses structural integrity. A flexible connector includes a flexible hollow outer cable housing with one end configured to be stationarily (preferably fixedly) connected with the base. A flexible cable is inside the outer cable housing for sliding movement therein and has one end configured to be stationarily (preferably fixedly) connected with the movable member. The flexible cable is moved with respect to the outer cable housing by movement of the movable member upon loss of structural integrity by the thermally responsive element.

A container holding a fire suppressing powder has a top, a cylindrical sidewall and a bottom with a hole, the bottom having a score line defining a segment. An explosive material housing containing an explosive material is mounted to a head of a mounting member. The mounting member has a lower portion smaller in cross-sectional dimension than the head, depending downward from the head and extending through the hole in the bottom. A retainer is secured around the lower portion of the mounting member below the bottom to secure the mounting member to the bottom. A fuse extends through the hole in the bottom, a passage in the mounting member, and into the explosive material housing. A plate is mounted within the container a selected distance below the top, the plate being movable a short distance toward and away from the top in response to ignition of the explosive material.