A drain tool assembly adapted to couple to a housing without causing fluid to flow from the housing until moved to a draining position. The drain tool assembly avoids fluid spillage by sealing a body to the housing and then engaging a plunger of the housing by moving and locking a sleeve to initiate a flow of fluid from the housing.

A drain tool assembly adapted to couple to a housing without causing fluid to flow from the housing until moved to a draining position. The drain tool assembly avoids fluid spillage by sealing a body to the housing and then engaging a plunger of the housing by moving and locking a sleeve to initiate a flow of fluid from the housing.

A light-touch water-saving valve of the invention uses the conversion of steel balls for various controls. First, a shifting steel ball are used to transfer the transverse shear force of a guide plate into the longitudinal thrust to open and close the valve, and then a constant-flow steel ball is used to clamp a valve seat to fix the valve to achieve a constant flow control. When a user releases a brake rod, the valve is automatically closed by a restoration spring. At the same time, the shifting steel ball is pressed by a packing spring, and then the ball grooves on the two sides of the guide plate are pressed to lock the valve to a normally opening operation.

A drain tool assembly adapted to couple to a housing without causing fluid to flow from the housing until moved to a draining position. The drain tool assembly avoids fluid spillage by sealing a body to the housing and then engaging a plunger of the housing by moving and locking a sleeve to initiate a flow of fluid from the housing.

There is provided a water supply control system for a tap (2). The control system includes a spindle (16) attached at one end to a tap handle (10) and at its other end to a tap rotation detector/valve actuator, the spindle (16) extending through the water supply conduit (3) to a tap rotation detector (5) which sends a signal to a supply valve (4) via a controller (6). The controller (6) triggers closure of the valve (4) if the valve has remained open for a predetermined time interval. The control system also has a detent to limit rotation of the spindle (16) in a tap closing direction.

There is provided a water supply control system for a tap (2). The control system includes a spindle (16) attached at one end to a tap handle (10) and at its other end to a tap rotation detector/valve actuator, the spindle (16) extending through the water supply conduit (3) to a tap rotation detector (5) which sends a signal to a supply valve (4) via a controller (6). The controller (6) triggers closure of the valve (4) if the valve has remained open for a predetermined time interval. The control system also has a detent to limit rotation of the spindle (16) in a tap closing direction.

A latching valve assembly which controls the flow of air and purge vapor between a fuel module and a carbon canister, where a change in an electrical property of the latching valve assembly is used to detect whether the latching valve is in the open position or the closed position. The latching valve assembly of the present invention eliminates the need for a physical switch solution, mechanical or non contact solutions, eliminates complexity of valve hardware requirements, and only adds minor electric components and software to identify the latch position. This system eliminates valve complexity and mechanical connections required for electrical conductivity.

A latching valve assembly which controls the flow of air and purge vapor between a fuel module and a carbon canister, where a change in an electrical property of the latching valve assembly is used to detect whether the latching valve is in the open position or the closed position. The latching valve assembly of the present invention eliminates the need for a physical switch solution, mechanical or non contact solutions, eliminates complexity of valve hardware requirements, and only adds minor electric components and software to identify the latch position. This system eliminates valve complexity and mechanical connections required for electrical conductivity.

A bleed valve for a gas turbine engine compressor has a valve body and a flapper. The valve body defines a flow path and includes a flapper seat. The flow path extends through the valve body. The flapper is pivotally connected to the valve body and is movable between a closed position and an open position. In the closed position the flapper seats against the flapper seat and blocks the flow path. In the open position the flapper is angled towards the valve body inlet such that fluid moving through the valve body exerts force on the flapper, urging the flapper towards the closed position.

A bleed valve for a gas turbine engine compressor has a valve body and a flapper. The valve body defines a flow path and includes a flapper seat. The flow path extends through the valve body. The flapper is pivotally connected to the valve body and is movable between a closed position and an open position. In the closed position the flapper seats against the flapper seat and blocks the flow path. In the open position the flapper is angled towards the valve body inlet such that fluid moving through the valve body exerts force on the flapper, urging the flapper towards the closed position.