A coupler for use in a closed transfer system is provided. The coupler includes a body with an axial slot, an outlet, and a probe that extends from a first end portion to a second end portion and at least partially received within the body, the probe configured to be movable relative to the body between a first position and a second position to selectively control the flow of fluid through the outlet. A handle is coupled to the probe and configured to interface with the axial slot, wherein the handle is configured to move axially along the axial slot to move the probe between the first position and the second position.

A method of checking a pressure of an agent cylinder that includes coupling a gauge assembly to an outlet of a gauge tool, the gauge assembly having a pressure gauge and a vent valve movable between an open position and a closed position. The method further includes moving the vent valve towards the closed position; attaching a fill adapter defining an inlet of the gauge tool to a valve port of an agent cylinder; and actuating a drive member of the gauge tool in a first direction to move a valve member of the gauge tool from a first position towards a second position to facilitate a fluid flow between the inlet and the outlet of the gauge tool.

A connector which couples to an outlet conduit to decrease an outlet conduit passageway pressure differential between outlet conduit opposing first and second ends, whereby the connector includes a mixing chamber having a first inlet port in fluidic communication with a connector first open end and the mixing chamber; an outlet port in fluidic communication with the mixing chamber and a connector second open end; and a second inlet port in fluidic communication with the connector second open end and the mixing chamber. Additionally, a connector including a connector internal surface defining a connector passageway which communicates between connector first and second open ends; and a sensor module operatively coupled to the connector passageway to sense a parameter of a first fluid flowing in a first fluid flow path through the connector passageway.

A connector which couples to an outlet conduit to decrease an outlet conduit passageway pressure differential between outlet conduit opposing first and second ends, whereby the connector includes a mixing chamber having a first inlet port in fluidic communication with a connector first open end and the mixing chamber; an outlet port in fluidic communication with the mixing chamber and a connector second open end; and a second inlet port in fluidic communication with the connector second open end and the mixing chamber. Additionally, a connector including a connector internal surface defining a connector passageway which communicates between connector first and second open ends; and a sensor module operatively coupled to the connector passageway to sense a parameter of a first fluid flowing in a first fluid flow path through the connector passageway.

A female coupling for a fluid quick connector and configured to be removably connected to a male coupling of the connector. The female coupling includes a valve assembly with a valve alternating between closed and open positions. The flow of a fluid from the female coupling towards the male coupling occurs in the open position. The female coupling includes a hollow body defining an inner cavity with a longitudinal axis for the flow of the fluid. The female valve assembly is housed in the inner cavity. The hollow body includes an end portion configured to be housed in a housing seat of an interface manifold. With the end portion in the housing seat, the tubular inner cavity is placed in fluid connection with at least one inner channel of the interface manifold. A constraint prevents rotation/translation of the end portion of the hollow body with respect to the housing seat.

A central vacuum cleaning system includes an inlet valve mounted at various locations in a structure or RV and connected to the inlet end of a vacuum conduit. A section of hose is slidably mounted within the conduit and extends from the inlet valve for cleaning an adjacent area. The hose includes a hose plug connected with a distal end of the hose. The hose plug includes an annular channel and an orthogonally aligned slot. The hose plug may also include a first seal and a second seal.

A central vacuum cleaning system includes an inlet valve mounted at various locations in a structure or RV and connected to the inlet end of a vacuum conduit. A section of hose is slidably mounted within the conduit and extends from the inlet valve for cleaning an adjacent area. The hose includes a hose plug connected with a distal end of the hose. The hose plug includes an annular channel and an orthogonally aligned slot. The hose plug may also include a first seal and a second seal.

A wireless communication safety break device is disclosed which has an upper safety break portion having a fuel inlet, an upper portion check valve, an upper portion communications device, an upper portion contact point or switch, and a lower safety break portion having a fuel outlet, a lower portion check valve, a lower portion contact point or switch, and a locator device.

A wireless communication safety break device is disclosed which has an upper safety break portion having a fuel inlet, an upper portion check valve, an upper portion communications device, an upper portion contact point or switch, and a lower safety break portion having a fuel outlet, a lower portion check valve, a lower portion contact point or switch, and a locator device.

A connector that is in a fuel supply system capable of supplying a high-pressure fuel, and may reduce pulsation in a low-pressure pipe with a simple structure and extend the life of a mold is provided. A valve of the connector includes a valve seat contact surface and a tapering through hole. The valve seat contact surface axially separates from an annular valve seat and forms a forward-direction flow path due to pressure of the low-pressure fuel when the high-pressure fuel does not flow in reverse, and may come into contact with the annular valve seat when the high-pressure fuel flows in reverse. The tapering through hole is formed farther radially inward than the valve seat contact surface, forms an orifice flow path having a smaller cross-sectional area than the forward-direction flow path, and allows a reverse flow of the high-pressure fuel when the high-pressure fuel flows in reverse.