Abstract: A sprinkler assembly includes a pipe portion extending from an inlet end to an outlet end. The sprinkler assembly includes a stop coupled with the outlet end, the stop including a first wall and a second wall extending from the first wall, the first wall across the outlet end, the second wall contacting an inner surface of the pipe portion. The sprinkler assembly includes a plug coupled with the inlet end, the plug including a rim, a plug wall extending from the rim, and an end wall connected with the plug wall and opposite the rim, the plug wall contacting the inner surface of the pipe portion.

Abstract: A concealed sprinkler includes a body that defines an outlet, a seal that seals the outlet, an activation element coupled with the seal, a housing that defines a chamber around the activation element, a cover plate removably coupled with the housing, and a wall coupled with or extending from the cover plate to direct air flow to the activation element. 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 cover plate is removably coupled with the housing such that a duration of time between decoupling of the cover plate from the housing responsive to the fire condition and changing of the activation element from the first state to the second state responsive to the fire condition is less than a threshold duration of time.

Abstract: 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.

Abstract: A sprinkler button includes a body and a wall extending from the body. The body includes a ridge and one or more cavities defined by the ridge and extending into the body. The body defines a hollow chamber on an opposite side of the body from the one or more cavities. The wall includes one or more tabs.

Abstract: A sprinkler assembly includes a pipe portion extending from an inlet end to an outlet end. The sprinkler assembly includes a stop coupled with the outlet end, the stop including a first wall and a second wall extending from the first wall, the first wall across the outlet end, the second wall contacting an inner surface of the pipe portion. The sprinkler assembly includes a plug coupled with the inlet end, the plug including a rim, a plug wall extending from the rim, and an end wall connected with the plug wall and opposite the rim, the plug wall contacting the inner surface of the pipe portion.