Patent ES-8600818-A1 (ES)
Title: Protection device for water conduits.
IPC: F16K17/32
Filed: 1984-08-09
Abstract: The appts. cuts off the supply in the event of leakage, fractured pipes or excessive water use. It consists of a housing with an inlet aperture, an outlet aperture and four main internal chambers. The inlet aperture and four main internal chambers. The inlet chamber is linked to a measuring chamber, a flow limit pre-setting chamber and, via a valve, to the inlet chamber. A membrane in the measuring chamber controls a shut-off valve between the outlet chamber and the outlet aperture. - Two knobs on the front of the device control the overall flow rate and the pre-setting chamber switching level. If the protection device has operated, cutting off the flow, a manually-operated valve in the output chamber can be used to connect the under-pressure in the outlet aperture to the outlet chamber, resetting the shut-off valve.  (0/10) EPAB- EP-133732 B Protective device for water pipes consisting primarily of a box (1) with a inlet (2) connection to a water supply pipe and with an outlet (3) connected to a water delivery pipe, in the box (1) an inlet chamber (4) which communicates with a delivery chamber (6) which leads to the outlet (3), a cut-off valve (13) located between the delivery chamber (6) and the outlet (3) which cut-off valve forms part of a membrane (15), a valve (31) for shutting off a channel (28) and a flow rate controller (36) for controlling the rate of flow in the connection circuit of the device, characterised by the fact that the inlet chamber (4) also communicates with a measuring chamber (9) and a pre-control chamber (11) and that it is provided with a valve (12) located between the inlet and delivery chambers (4-6), said membrane (15) being located in the measuring chamber (9) a push-down reset valve (16) located in the delivery chamber (6) for admitting pressure to the outlet (3) and the opening of the cut-off valve (13), a knob (18) for pushing the reset valve (16), a controllable valve (21) located between the delivery chamber (6) and the upper part of the measuring chamber (9) for adjusting the desired water consumption, a pre-control membrane (26) located in the pre-control chamber (11) for closing an opening (27) provided between the pre-control chamber and the measuring chamber (9), said channel (28) being provided between the discharge chamber (6) and the pre-control chamber (11), a channel (35) provided between the discharge chamber (6) and the pre-control chamber (11), an opening (29) provided between the measuring chamber (9) and the channel (28), said valve (31) being located between the pre-control chamber (11) and the opening (29) of the measuring chamber (9), means of control (32) for controlling the rate of flow between the measuringchamber (9) and the delivery chamber (6) and for controlling the closing speed of the cut-off valve (13), said flow rate controller (36) being l - EP-133732 B Protective device for water pipes consisting primarily of a box (1) with a inlet (2) connection to a water supply pipe and with an outlet (3) connected to a water delivery pipe, in the box (1) an inlet chamber (4) which communicates with a delivery chamber (6) which leads to the outlet (3), a cut-off valve (13) located between the delivery chamber (6) and the outlet (3) which cut-off valve forms part of a membrane (15), a valve (31) for shutting off a channel (28) and a flow rate controller (36) for controlling the rate of flow in the connection circuit of the device, characterised by the fact that the inlet chamber (4) also communicates with a measuring chamber (9) and a pre-control chamber (11) and that it is provided with a valve (12) located between the inlet and delivery chambers (4-6), said membrane (15) being located in the measuring chamber (9) a push-down reset valve (16) located in the delivery chamber (6) for admitting pressure to the outlet (3) and the opening of the cut-off valve (13), a knob (18) for pushing the reset valve (16), a controllable valve (21) located between the delivery chamber (6) and the upper part of the measuring chamber (9) for adjusting the desired water consumption, a pre-control membrane (26) located in the pre-control chamber (11) for closing an opening (27) provided between the pre-control chamber and the measuring chamber (9), said channel (28) being provided between the discharge chamber (6) and the pre-control chamber (11), a channel (35) provided between the discharge chamber (6) and the pre-control chamber (11), an opening (29) provided between the measuring chamber (9) and the channel (28), said valve (31) being located between the pre-control chamber (11) and the opening (29) of the measuring chamber (9), means of control (32) for controlling the rate of flow between the measuringchamber (9) and the delivery chamber (6) and for controlling the closing speed of the cut-off valve (13), said flow rate controller (36) being l USAB- US4522229 A The device consists of a housing (1) with an inlet (2) connected to a water pipe and an outlet (3) to which a water-using appliance is connected. The inlet (2) leads into a supply chamber (4) hwich is connected by an opening (5) to a discharge chamber (6). The discharge chamber is connected by an opening (7) to the outlet (3) - coupled to the water pipe of a water-consuming appliance. The supply chamber (4) is similarly connected to an opening (8) to the lowest part of a measuring chamber (9) and by an opening (10) to the lowest part of a precontrol chamber (11). - The opening (5) between the supply chamber (4) and the discharge chamber (6) can be closed by a ball valve (12) which may or may not work in conjunction with a pressure spring and which can be opened by water flowing in supply chamber (4) at a certain pressure. - (10pp) - US4522229 A The device consists of a housing (1) with an inlet (2) connected to a water pipe and an outlet (3) to which a water-using appliance is connected. The inlet (2) leads into a supply chamber (4) which is connected by an opening (5) to a discharge chamber (6). The discharge chamber is connected by an opening (7) to the outlet (3)  coupled to the water pipe of a water-consuming appliance. The supply chamber (4) is similarly connected to an opening (8) to the lowest part of a measuring chamber (9) and by an opening (10) to the lowest part of a precontrol chamber (11). - The opening (5) between the supply chamber (4) and the discharge chamber (6) can be closed by a ball valve (12) which may or may not work in conjunction with a pressure spring and which can be opened by water flowing in supply chamber (4) at a certain pressure.