Abstract: A dry sprinkler for a fire protection system having a configuration with one or more coupling arrangements for connection to a fluid supply piping of the system. The dry sprinkler structure further includes an inner surface and inner assembly to provide a preferred discharge performance. The dry sprinkler provides for a flow rate from the outlet of the sprinkler in accordance with the start pressure at the inlet of the sprinkler and the rated discharge coefficient, K factor, ranging between 16.8 GPM/PSI½ and 33.6 GPM/PSI½.

Abstract: A dry sprinkler for a fire protection system having multiple alternative coupling arrangements for connection to the fluid supply piping of the system.

Abstract: A Manual Reset hydraulic valve latch, capable of maintaining a hydraulically controlled valve in an open state after the valve has been opened by an activating device, regardless of the state of the activating device, until the latch is reset. The invention provides simplicity of operation, high resistance to false tripping and accidental shutoff. The invention further provides a fast fill of the hydraulic valve control chamber by reducing flow restriction into the valve control mechanism during reset of the latch.

Abstract: A differential control valve including a housing having an interior surface defining an internal chamber with a central axis. The valve further includes a first port; a second port and a third port, each in communication with the internal chamber. A first valve seat is disposed along the interior surface of the housing circumscribed about the central axis and a second valve seat is circumscribed about the first valve seat. A sealing member defines a sealed position and an open position with respect to the valve seats. A spring member biases the seal member toward the open position and is disposed between the sealing member and the interior of the housing.

Abstract: An automatic fire protection sprinkler assembly and a method of sealing includes a sprinkler frame having an inlet, an outlet, an internal passageway extending between the inlet and the outlet, and a sealing surface formed about the outlet. The assembly also includes a thermally responsive trigger and a seal assembly disposed between the sealing surface and the thermally responsive trigger. The seal assembly includes a body having an inner surface defining an internal chamber. The inner surface has a portion disposed relative to the sealing surface such that a fluid disposed in the internal chamber and acting on the portion of the inner surface provides a sealing force in the direction of the sealing surface.

Abstract: A differential control valve and method of operation as a residential dry pipe fluid control valve which provides for a high liquid to gas trip ratio. The valve includes a housing having an interior surface defining an internal chamber with a central axis. The valve further includes a first port; a second port and a third port, each in communication with the internal chamber. A first valve seat is disposed along the interior surface of the housing circumscribed about the central axis and a second valve seat is circumscribed about the first valve seat. A sealing member defines a sealed position and an open position with respect to the valve seats. A spring member biases the seal member toward the open position and is disposed between the sealing member and the interior of the housing.

Abstract: A sprinkler assembly that includes a deflector assembly that translates with respect to the sprinkler frame upon actuation of the sprinkler from an unactuated state. The sprinkler frame includes a support member having an annular member spaced from the outlet to limit or control the axial translation of the deflector assembly relative to the outlet. Moreover, the annular member includes a region to support a closure assembly and thermally responsive trigger assembly under a fluid static load. A cover plate assembly includes a flexible annular wall to allow the cover plate assembly to be pushed on and held about the annular member of the sprinkler frame.

Abstract: A diaphragm-type control valve (10) having a valve body (12) holding a diaphragm (100) and an expansion member (150) is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. An inner surface of the valve body defines a chamber having an inlet (14) and an outlet (16) in communication with the chamber, and an elongated seat member (26). The expansion member (150) biases the diaphragm (100) to a seated position within the valve.

Abstract: An adjustable bracket includes a first bracket portion with a first leg and a first bar element, a second bracket portion with a second leg and a second bar element, and a hub assembly supported on at least one of the first and second bracket portions. The hub assembly can be configured to couple a flexible hose to the adjustable bracket. The first bar element can be telescopically received by the second bar element so that a distance between the first and second legs is selectively adjustable. A fastener can fix the first and second bar elements in a desired relationship. The hub assembly can include first and second support members that are pivotably connected to rotate between open and closed positions. The second support member may have a slot that allows the second support member to rotate and move laterally with respect to the first support member.

Abstract: One aspect of the invention provides a diaphragm valve having a plurality of sealing members disposed on the diaphragm, the plurality of sealing member and the seat define two intermediate chambers, coupled to at least one and potentially more, alarm port, to alert of leakage of fluid from the inlet side and/or the outlet side. A second aspect of the invention provides at least one angled lip disposed to improve the seal quality of any diaphragm valve. The angled lip enjoys increased sealing responsive to increased pressure of the fluid it seals against. The angled lip may be disposed on the inlet side, he outlet side, or both. In certain embodiments the lip is utilized in a diaphragm having two sealing member forming a single intermediate chamber therebetween when the valve is in the closed condition.

Abstract: A dry sprinkler assembly capable of providing fire suppression protection, including early suppression fast response protection and storage protection of a commodity having a nominal storage height of at least 20 feet beneath a ceiling of with a maximum nominal 40 foot ceiling height. The dry sprinkler assembly includes an internal passageway and an outlet defining a nominal K-factor of at least 16.8 GPM/PSI1?2. Embodiments of the sprinkler assembly include a deflector having a plurality of tines radially disposed about a central portion to define slots therebetween. Embodiments of the deflector define a non-planar deflecting member and a member with a non-circular perimeter. Installation of the sprinkler assembly provides for a insulation sealing assembly having a insulation ring, planar insert member and a surrounding housing.

Abstract: 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.

Abstract: 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.

Abstract: A diaphragm-type control valve having a valve body holding a diaphragm and a depression member is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. An inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member. The depression member biases the diaphragm to a seated position within the valve.

Abstract: A dry pilot actuator provides for a high liquid to gas trip ratio. The actuator includes a housing having an interior surface defining an internal chamber with a central axis. The valve further includes a first inlet port; a second pilot port and a third drain port, each in communication with the internal chamber. A first actuator seat is disposed along the interior surface of the housing circumscribed about the central axis and a second actuator seat is circumscribed about the first actuator seat. A seal member having a sealed position and an open position is substantially aligned with the central axis of the housing in each of the sealed and open positions. The third port is isolated from the first and second port when the sealing member is in the sealed position, and in fluid communication with the first port when the sealing member is in the open position. The second port is isolated from the first and third ports when the sealing member is in the actuated position.

Abstract: A dry sprinkler for a fire protection system. The preferred dry sprinkler has a metallic disc annulus positionable within a passageway to skew a central axis of a face of the metallic disc annulus with respect to a longitudinal axis of the dry sprinkler so that an expected minimum flow rate based on a rated discharge coefficient is provided. The dry sprinkler operates to provide an expected flow rate over a range of start pressures. The expected flow rate is based on a K-factor rating. The dry sprinkler provides an acceptable level of fluid flow rate from the expected flow rate based on the K-factor for a range of start pressures.

Abstract: A dry sprinkler for a fire protection system having a configuration with one or more coupling arrangements for connection to a fluid supply piping of the system. The dry sprinkler structure further includes an inner surface and inner assembly to provide a preferred discharge performance. The dry sprinkler provides for a flow rate from the outlet of the sprinkler in accordance with the start pressure at the inlet of the sprinkler and the rated discharge coefficient, K factor, ranging between 16.8 GPM/PSI½ and 33.

Abstract: A dry sprinkler for a fire protection system having multiple alternative coupling arrangements for connection to the fluid supply piping of the system.

Abstract: A diaphragm-type control valve having a diaphragm and a valve body is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. The diaphragm element and a port in the body together form an intermediate chamber that eliminates the need for a check-valve downstream of the valve. In one preferred embodiment, an inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member defining a groove in communication with the port. A diaphragm member having upper and lower surfaces is disposed within the chamber. The lower surface preferably includes a pair of spaced apart elongated members defining a channel therebetween. The diaphragm member engages the seat member placing the channel in communication with the groove to define an air seat in communication with the port.

Abstract: A diaphragm-type control valve having a diaphragm and a valve body is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. The diaphragm element and a port in the body together form an intermediate chamber that eliminates the need for a check-valve downstream of the valve. In one preferred embodiment, an inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member defining a groove in communication with the port. A diaphragm member having upper and lower surfaces is disposed within the chamber. The lower surface preferably includes a pair of spaced apart elongated members defining a channel therebetween. The diaphragm member engages the seat member placing the channel in communication with the groove to define an air seat in communication with the port.