A trip cock valve for a brake system on a rail car includes a valve body that defines an inlet, a chamber downstream from the inlet, and an outlet downstream from the chamber. A piston is inside the chamber. A valve member operably connected to the piston has a first position that prevents fluid flow through the outlet and a second position that permits fluid flow through the outlet. A lever is operably engaged with the valve member to move the valve member from the first position to the second position. A valve position indicator downstream from the inlet is in fluid communication with the inlet when the valve member is in the second position.

A wet piping system modular valve assembly includes a single piece valve body with a check valve within the valve body. The check valve is movable between a closed position and an open position according to a pressure differential across the check valve. A drain valve is removably mounted to the valve body and fluidly connected with the valve body downstream of the check valve. A mechanically independent flow detection switch is removably mounted to the valve body and fluidly connected with the valve body upstream of the drain valve.

A wet piping system modular valve assembly includes a single piece valve body with a check valve within the valve body. The check valve is movable between a closed position and an open position according to a pressure differential across the check valve. A drain valve is removably mounted to the valve body and fluidly connected with the valve body downstream of the check valve. A mechanically independent flow detection switch is removably mounted to the valve body and fluidly connected with the valve body upstream of the drain valve.

Methods, systems, and computer-readable storage media for controlling and monitoring an electro-mechanical flushing mechanism in a pressurized water distribution system. A first pressure reading of water in a supply channel is taken, the supply channel being in fluid communication with a distribution line of the water distribution system and terminated by a flushing valve. The flushing valve is then actuated causing the valve to change state. A second pressure reading is taken of the water in the supply channel and a difference between the first and second pressure readings is computed. The computed difference is compared to a minimum pressure differential value, and, upon determining that the difference is not greater than the minimum pressure differential value, a central control system of the water distribution system is alerted that a valve failure has occurred.

Micro-fluidic chambers for use in a liquid medicament delivery system, include a bottom substrate and a top cover, the top cover being spaced from the bottom substrate so as to define a height of the chamber, wherein, one or more walls or fillings are positioned in the chamber, the walls or fillings defining a fluid channel there between such that the fluid channel extends from an inlet conduit to an inlet of the chamber to an outlet conduit connected to an outlet of the chamber, wherein, each of the walls or fillings has a height less than the height of the chamber so as to define a fluid gap between a top surface of each wall or filling and the top cover; and wherein, the dimensions of the walls or fillings and the chamber are such that the fluid gap will be filled with liquid by capillary forces via the fluid channel when liquid is introduced into the fluid chamber.

The present invention provides a flow apparatus (10) having a flow control valve (12) having a housing (14), an aperture (16), an aperture obturator (18) and an actuator (20) for moving said obturator (16) between a first closed position and multiple open positions (B-L), characterised by a valve position monitor (21) for monitoring the position of the valve (12) and comprising a plurality of discrete sensors (28a to 28e) associated with a plurality of open positions (B-L) of said valve for monitoring the presence or absence of one or more members (26) movable with said valve (12). The arrangement may be used to monitor the valve position and such monitoring may be of use in the prediction of the amount of fluid remaining within a cylinder (32) to which it has been attached.

A method for monitoring a system with mechanically movable parts, preferably a valve system, wherein the system is preferably part of a technical plant, in particular a production plant, and wherein the system has at least one mechanically movable part, in particular a valve, where the method comprises a) acquiring indicators, which can be used for a technical characterization of a movement procedure of the mechanically movable part, via technical devices configured for the acquisition of the indicators and b) transferring the acquired indicators to an evaluation unit arranged outside the system to determine a technical status of the system.

A gauge for a hybrid pressure and flowgauge regulator includes first indicia and second indicia. The first indicia provides an indication of a flow rate of a gas exiting an outlet of the hybrid pressure and flowgauge regulator when the gas exits with a pressure below a gauge threshold pressure. The second indicia provides an indication of the pressure of the gas exiting the outlet of the hybrid pressure and flowgauge regulator when the pressure of the gas exiting the outlet is above the gauge threshold pressure.

Methods, systems, and computer-readable storage media for controlling and monitoring an electro-mechanical flushing mechanism in a pressurized water distribution system. A first pressure reading of water in a supply channel is taken, the supply channel being in fluid communication with a distribution line of the water distribution system and terminated by a flushing valve. The flushing valve is then actuated causing the valve to change state. A second pressure reading is taken of the water in the supply channel and a difference between the first and second pressure readings is computed. The computed difference is compared to a minimum pressure differential value, and, upon determining that the difference is not greater than the minimum pressure differential value, a central control system of the water distribution system is alerted that a valve failure has occurred.

An alarm valve station (80) of a fire extinguishing system (100) includes a fire extinguishing system valve (1) having a housing (2, 3) which has a fluid inlet chamber (8), a fluid outlet chamber (9) and a closing body (4a) reciprocable between a blocking state and a release state, wherein the fluid inlet chamber (8) and the fluid outlet chamber (9) are separated from each other in the blocking state and communicate with each other in fluid-conducting relationship in the release state. In particular it is proposed that the evaluation unit is connected in signal-conducting relationship to one or more actuators, and is adapted to control the actuator or actuators by the control commands, wherein the alarm valve station preferably has one or more sensors and the evaluation unit is connected in signal-conducting relationship to the sensor or sensors and is adapted to control the actuator or actuators in dependence on the sensor data present thereat.