A coupling (40) for connecting a suction line (31) to a first fluid flow and an exhaust gas flow, the coupling (40) comprising first and second portions (51, 52). The first portion (51) is adapted to receive an end section (34) of the suction line (31) and the second portion (52) is adapted to cooperate with the first portion (51) for engaging a portion of the end section (34) therebetween. The first portion (51) has an opening (63) for receiving an exhaust outlet (16, 17) configured to deliver an exhaust gas flow into the first portion (51). Engagement of the end section (34) between the first and second portions (51, 52) serves to compress a marginal portion of a side wall (37) or side port (36) in the end section (34) of the suction line (31). An apparatus (10) including a rotary tool element (19) and including the coupling (40) is also disclosed.

A stub out retainer is disclosed. The stub out retainer includes a first clamp section having a front end with a first plate half and a first front collar half; a second clamp section having a front end with a second plate half and a second front collar half; and wherein the first and second clamp sections are configured to mate together such that the first plate half and the second plate half define an escutcheon plate, the first front collar half and second front collar half define a cylindrical front collar.

A stub out retainer is disclosed. The stub out retainer includes a first clamp section having a front end with a first plate half and a first front collar half; a second clamp section having a front end with a second plate half and a second front collar half; and wherein the first and second clamp sections are configured to mate together such that the first plate half and the second plate half define an escutcheon plate, the first front collar half and second front collar half define a cylindrical front collar.

A mechanical branch outlet includes: a housing defining: an outer surface; an inner surface; and an outlet bore extending between the outer surface and the inner surface; an insert defining: a wall; an axis; a rim extending radially outward from the wall with respect to the axis, the rim being a flange; a first end extending from the rim in a first axial direction aligned with the axis; and a second end extending from the rim in a second axial direction opposite from the first axial direction; the first end received fully within the outlet bore of the housing; the outlet bore of the housing configured to slidably receive the second end and retain the first end, an outer diameter of the rim being greater than an outer diameter of the second end.

A mechanical branch outlet includes: a housing defining: an outer surface; an inner surface; and an outlet bore extending between the outer surface and the inner surface; an insert defining: a wall; an axis; a rim extending radially outward from the wall with respect to the axis, the rim being a flange; a first end extending from the rim in a first axial direction aligned with the axis; and a second end extending from the rim in a second axial direction opposite from the first axial direction; the first end received fully within the outlet bore of the housing; the outlet bore of the housing configured to slidably receive the second end and retain the first end, an outer diameter of the rim being greater than an outer diameter of the second end.

The present invention relates to a coupling assembly for branching a pipe, and more specifically to a coupling assembly for branching a pipe, which can reduce assembly man-hours, has a simplified configuration, thus enabling a reduction in construction costs, and can effectively prevent the leakage of branched fluid even when the diameter of a branch hole formed in an inlet pipe is increased in order to increase a flow rate inside a branch pipe for supplying fluid to a sprinkler.

A localized product injection system includes a composite boom tube having a carrier fluid passage within a tube body, and at least one injection product passage within the tube body isolated from the carrier fluid passage. A plurality of port stations are provided at locations along the tube body. Each of the port stations includes a carrier fluid outlet port and at least one injection product outlet port. A localized injection interface is coupled at a port station. The injection interface includes a carrier fluid input coupled with the carrier fluid outlet port, and at least one injection product input coupled with the at least one injection product outlet port. The injection interface includes at least one throttling element in communication with the at least one injection product input, a mixing chamber, and an injection port configured for localized coupling and injection to a product dispenser.

A localized product injection system includes a composite boom tube having a carrier fluid passage within a tube body, and at least one injection product passage within the tube body isolated from the carrier fluid passage. A plurality of port stations are provided at locations along the tube body. Each of the port stations includes a carrier fluid outlet port and at least one injection product outlet port. A localized injection interface is coupled at a port station. The injection interface includes a carrier fluid input coupled with the carrier fluid outlet port, and at least one injection product input coupled with the at least one injection product outlet port. The injection interface includes at least one throttling element in communication with the at least one injection product input, a mixing chamber, and an injection port configured for localized coupling and injection to a product dispenser.

The connection assembly (100) which includes a flange (140) has two internal orifices (150) crossing through and centered on orifice axes (A150) parallel to each other, a front surface (142) and a rear surface (144) parallel to a transverse plane (P140) transverse to the orifice axes (A150), two fluidic coupling elements (170), that have a male body (172) received in a corresponding internal orifice, and a cover (120), configured for being attached to a support (110) in a mounted configuration of the connection assembly. The flange can move with respect to the cover according to a movement supported by the transverse plane, whereas for each male body, a second gasket (188) is interposed radially between the male body and an internal radial surface (S162) of the corresponding internal orifice, each male body being mounted in the corresponding internal orifice and can be tilted with respect to the corresponding orifice axis.

There is disclosed a side wall seal for piping comprising an annular ring adapted to be attached to a building sidewall, an annular wall extending outwardly from said annular ring and having a seam in said annular wall, a first ear extending outwardly from the annular wall adjacent a first side of the seam and a second ear extending outwardly from the annular wall adjacent a second side of the seam, and a closure mechanism for closing the seam around said piping. A wedge member may be used with the side wall seal to angle the piping downward.