The invention relates to a device for draining a liquid, in particular rainwater, from a first film layer (4) which forms at least one part of a building cladding element. A first valve element (26) can be arranged in the region of a first opening (22) provided in the first film layer (4) such that the valve element can be pivoted between a first position, which closes the first opening (22), and a second position, which at least partly releases the first opening (22). Additionally, first opening and closing means (30, 32, 34) which can be attached to the first film layer (4) are provided, said means being designed to keep the first valve element (26) in the first position as long as the pressure (40a) of a liquid (40) which has arrived on the upper face of the first film layer (4) is less than a specified first threshold or maximally equal to said threshold, said pressure acting on the first valve element (26), allow the first valve element (26) to pivot from the first position to the second position if the liquid (40) pressure (40a) acting on the first valve element (26) exceeds the first threshold, and pivot the first valve element (26) from the second position to the first position after the liquid (40) pressure (40a) acting on the first valve element (26) is substantially no longer present.

A programmable, electronically controlled sprinkler system has a hermetically sealed internal chamber which encloses all of the internal water flow, valves, mechanical and rotational components and a plurality of magnetic coupling arrangements which allow external motors to control operation of the internal mechanical components without requiring any hydraulic seals.

A low power, autonomously programmable plant watering device for custom irrigation regimes of individual plants. The device has an integrated sensor that quantifies soil moisture. The device initiates watering by opening a magnetically sealed valve in response to a soil moisture measurement that falls below a preset threshold. The device can terminate watering by closing the magnetically sealed valve in response to a soil moisture measurement that meets or exceeds a preset threshold and/or at the expiration of a preset time interval. The device utilizes control system comprised of a microcontroller and an embedded application or applications to initiate moisture sensor readings and the opening and closing of the magnetically sealed valve. The valve is opened when the control system actuates a small motor that engages a Hall Effect sensor system with an articulated member having a reference magnet used as an open-closed valve status indicator and a strong magnet that is moved into a position to unseat a magnetically seated valve stop.

The invention relates to a drain valve (1) for a sanitary cistern, in particular a concealed cistern, having a valve housing (2) with a drain opening (4), the drain opening (4) being delimited by a valve seat (6), and a valve body (7), which rests in a sealing manner on the valve seat (6) in the closed state of the drain valve, the valve housing (2) having a housing chamber (11), arranged upstream of the valve seat (6) in the direction of flow, for receiving water. To allow the drain valve to be arranged outside the cistern and to enable access to the drain valve for maintenance as well as removal via an inspection opening that can be covered by a toilet bowl or urinal bowl, the invention suggests that

the valve body (7) is provided with an auxiliary chamber (12) for receiving water, the receiving volume of which is smaller for water in the open state of the drain valve (1) than in the closed state of the drain valve (1), the auxiliary chamber (12) being delimited by a flexible and/or movable wall section, and wherein the auxiliary chamber (12) is associated with an auxiliary drain valve (16) which in a first position permits an inflow of water into the auxiliary chamber (12) and in a second position permits an outflow of water out of the auxiliary chamber (12).

A programmable, electronically controlled sprinkler system has a hermetically sealed internal chamber which encloses all of the internal water flow, valves, mechanical and rotational components and a plurality of magnetic coupling arrangements which allow external motors to control operation of the internal mechanical components without requiring any hydraulic seals.

A programmable, electronically controlled sprinkler system has a hermetically sealed internal chamber which encloses all of the internal water flow, valves, mechanical and rotational components and a plurality of magnetic coupling arrangements which allow external motors to control operation of the internal mechanical components without requiring any hydraulic seals.

A programmable, electronically controlled sprinkler system has a hermetically sealed internal chamber which encloses all of the internal water flow, valves, mechanical and rotational components and a plurality of magnetic coupling arrangements which allow external motors to control operation of the internal mechanical components without requiring any hydraulic seals.

A programmable, electronically controlled sprinkler system has a hermetically sealed internal chamber which encloses all of the internal water flow, valves, mechanical and rotational components and a plurality of magnetic coupling arrangements which allow external motors to control operation of the internal mechanical components without requiring any hydraulic seals.

A rotational magnet indexing valve, which has a housing assembly and a rotational magnet valve assembly. The rotational magnet valve assembly has a driven gear assembly, a manifold assembly, a motor assembly, and a plurality of magnetic cartridge valve assemblies. The rotational magnet valve assembly has an inlet and a plurality of outlets. The manifold assembly is cylindrical in shape. The plurality of magnetic cartridge valve assemblies is radially positioned on the manifold assembly. The motor assembly is joined to the manifold assembly by a bridge.

A visual position indicator assembly for limit switch boxes is provided. The indicator assembly has an indicator element configured to be fitted to a shaft of a driving assembly of a limit switch box, and the indicator element has a plurality of adjacent sectors featuring different colors and/or writings. The visual position indicator assembly further has a first mask and a second mask that are both provided with through apertures having the same size and arrangement and that are fitted coaxially to each other. One between the first mask and the second mask is rotatable with respect to the other one. Thanks to this configuration, it is possible to vary the angular width of the through apertures in order to adapt it to the real angular stroke of the indicator element.