A combined dirt collector and cutout cock (CDC & COC) device for a rail car control to prevent unintentional re-pressurization of the control valve and rail car braking system. The device has an inlet configured for interconnection to an air supply, an outlet configured for interconnection to a control valve of a rail car, a valve moveable between a first position where an inlet is connected to an outlet and a second position where the inlet is isolated from the outlet, and a control valve vent positioned downstream of the valve and configured to open in response to the valve being moved into the second position. The valve may include a ball having a first passageway for selectively connecting and disconnecting the inlet from the outlet and a second passageway formed therethrough that is positioned to interconnect the outlet with the vent when the valve is in the second position.

A shower system includes a shower waterway and a fluid control valve. The shower waterway is configured to be coupled to a shower device. The fluid control valve is coupled to the shower waterway and comprises a valve body and a piston. The valve body includes a chamber and a reservoir. The piston is slidably coupled to the valve body and fluidly separates the chamber from the reservoir. The chamber includes a compressible gas. The piston is configured to slidably translate within the valve body to compress the compressible gas in response to a water pressure fluctuation in the shower waterway.

A breather plug for installation on liquid storage tanks has a main body with a hand-operated structure and an assembly structure which are connected. A flow channel penetrates the main body. A pinching part is formed on the radial periphery of the hand-operated structure. The fingers pinch the pinching part to rotate the main body. The assembly structure has a screwing section and a tapping section, so that said the body is installed on the tank body of the liquid storage tank through the assembly structure, allowing air to enter or leave the liquid storage tank through the flow channel. The pinching part is pinched by hand to rotate the main body, and the assembly structure is assembled on the liquid storage tank using the cutting action of the tapping section. As such, operation is easy and unlikely to fail.

A breather plug for installation on liquid storage tanks has a main body with a hand-operated structure and an assembly structure which are connected. A flow channel penetrates the main body. A pinching part is formed on the radial periphery of the hand-operated structure. The fingers pinch the pinching part to rotate the main body. The assembly structure has a screwing section and a tapping section, so that said the body is installed on the tank body of the liquid storage tank through the assembly structure, allowing air to enter or leave the liquid storage tank through the flow channel. The pinching part is pinched by hand to rotate the main body, and the assembly structure is assembled on the liquid storage tank using the cutting action of the tapping section. As such, operation is easy and unlikely to fail.

An anti-siphon mechanism of a miniature water pump includes an upper cover and a valve plate mounted below the upper cover. A side surface of the upper cover is penetrated with a water outlet, the upper cover is further provided with an air outlet and a water inlet, the valve plate is provided with an anti-siphon mechanism, the anti-siphon mechanism comprises air distribution chambers arranged on the valve plate, partition areas are arranged between the air distribution chambers, and an air outlet chamber, a water inlet chamber and a water outlet chamber are formed through the partition areas, a valve body device is installed in the air outlet chamber, and a flow stop device is installed in the water outlet chamber.

An anti-siphon mechanism of a miniature water pump includes an upper cover and a valve plate mounted below the upper cover. A side surface of the upper cover is penetrated with a water outlet, the upper cover is further provided with an air outlet and a water inlet, the valve plate is provided with an anti-siphon mechanism, the anti-siphon mechanism comprises air distribution chambers arranged on the valve plate, partition areas are arranged between the air distribution chambers, and an air outlet chamber, a water inlet chamber and a water outlet chamber are formed through the partition areas, a valve body device is installed in the air outlet chamber, and a flow stop device is installed in the water outlet chamber.

A shower system includes a shower waterway and a fluid control valve. The shower waterway is configured to be coupled to a shower device. The fluid control valve is coupled to the shower waterway and comprises a valve body and a piston. The valve body includes a chamber and a reservoir. The piston is slidably coupled to the valve body and fluidly separates the chamber from the reservoir. The chamber includes a compressible gas. The piston is configured to slidably translate within the valve body to compress the compressible gas in response to a water pressure change in the shower waterway.

A hydraulic valve is disclosed comprising a venting passage for allowing fluidic communication between an interior and an exterior of the hydraulic valve, the venting passage having a first portion following a first path extending in a first plane, and a second portion following a second path extending in a second plane, wherein the first plane is at an angle to the second plane, and wherein the first and/or second path is a labyrinth path in its respective plane.

A hydraulic valve is disclosed comprising a venting passage for allowing fluidic communication between an interior and an exterior of the hydraulic valve, the venting passage having a first portion following a first path extending in a first plane, and a second portion following a second path extending in a second plane, wherein the first plane is at an angle to the second plane, and wherein the first and/or second path is a labyrinth path in its respective plane.

A thermostat includes a valve member. The valve member has an insertion hole. The insertion hole is constituted by a first protective member and a second protective member. A shaft of a jiggle valve extends through the insertion hole. The jiggle valve has a substantially spherical head connected to an end of the shaft. The head closes the insertion hole by contacting the peripheral edge of the opening of the insertion hole. The materials of the first protective member and the second protective member each have a Vickers hardness higher than that of the valve member, which is part of the valve member other than the protective members.