Abstract: A volumetric flow meter, including a casing (10) fitted into a duct (C; 51, 62, 63) and including a base body (11) and a cap (13) cooperating to define a housing chamber (15), the housing chamber (15) being on opposite sides delimited by a base plane (11c) formed in the base body (11) and by a cap plane (13d) formed in the cap (13). Through the cap (13) there is formed an inlet passage (13e) communicating with the housing chamber (15) and extending orthogonally to the base plane (11c). Through a bottom (11d) of the base body (11) there is an outlet passage (11e) communicating with the housing chamber (15) and extending orthogonally to the base plane (11c). The flow meter has rotors (17, 18) mounted rotatably within the housing chamber (15), a permanent magnet (19) arranged on board one of the rotors (17), and a magnetic sensor (20).

Abstract: A device for measuring the flow rate includes an impeller rotatably mounted in a conduit about an axis, and a detector indicating the angular speed of the impeller. A diffuser has a plurality of passages for dividing the flow into reduced flows which are directed toward the vanes of the impeller to cause rotation. The diffuser forms peripheral passages which extend in planes parallel to the axis and inclined in a same direction about the axis. Each passage has a longitudinal inlet portion, parallel to the axis and a transverse outlet portion laterally facing a first axial portion of the impeller such that in operation, the outlet portions of the passages direct towards the vanes of the impeller corresponding flows or jets of fluid in non-radial directions inclined in a same direction around the axis.

Abstract: An electric valve device (1) for household appliances, includes a hollow body (2) with an inlet (4, 5) and an outlet (5, 4) for a flow of a liquid, between which in the body (2) there is defined a chamber (6) wherein a first valve seat (7) is provided, a (first) obturator (17) moveably mounted in the chamber (6) and cooperating with the first seat (7) for controlling the communication between the inlet (4, 5) and the outlet (5, 4), and a movable member (12) coupled with the obturator (17) and displaceable towards and away from the first valve seat (7) and controlled by means of an electrically operable actuator (10) carried by said body (2). In the body (2) a second valve seat (8) is staggered with respect to the first valve seat (7) along the direction of displacement of the first obturator (7), to which is connected a second obturator (18) displaceable from and towards the second valve seat (8).

Abstract: A volumetric flow meter, including a casing (10) fitted into a duct (C; 51, 62, 63) and including a base body (11) and a cap (13) cooperating to define a housing chamber (15), the housing chamber (15) being on opposite sides delimited by a base plane (11c) formed in the base body (11) and by a cap plane (13d) formed in the cap (13). Through the cap (13) there is formed an inlet passage (13e) communicating with the housing chamber (15) and extending orthogonally to the base plane (11c). Through a bottom (11d) of the base body (11) there is an outlet passage (11e) communicating with the housing chamber (15) and extending orthogonally to the base plane (11c). The flow meter has rotors (17, 18) mounted rotatably within the housing chamber (15), a permanent magnet (19) arranged on board one of the rotors (17), and a magnetic sensor (20).

Abstract: A valve assembly includes a valve body, having an inlet duct, an outlet duct and an intermediate portion. An electrovalve is located proximal to the intermediate portion. A measurement device is directly connected to the valve body. The measurement device includes a sensor for taking a measurement for determining a physical characteristic of the fluid that can flow in the valve assembly. The electrovalve includes a first electronic circuit for conducting an electric control signal from a control unit to the electrovalve. The measurement device includes a second electronic circuit for conducting the electric signals exchanged between the control unit and the sensor. The first electronic circuit and the second electronic circuit are implemented on a single header or printed circuit board. The electrovalve and the measurement device are mechanically connected directly to the single header or printed circuit board.

Abstract: A device for measuring the flow rate of a fluid, including a bladed impeller mounted in the conduit to be driven in rotation by the flow of the fluid, and to which at least one magnet is fixed, and a magnetic field sensor arranged near the conduit to generate a signal each time the magnet of the impeller, passes thereby. The number of signals generated by the sensor in a period of time is representative of the flow rate of the fluid.

Abstract: A device (1) for measuring the flow rate comprises an impeller (10) to be rotatably mounted in said conduit (C), around an axis (X-X) and having a plurality of radial vanes (13) to be hit by a flow of said fluid for making the impeller (10) rotate with an angular speed which is a function of the flow rate of said fluid, and a detector (16, 17) associated with the impeller (10) to provide signals indicating the angular speed thereof. Upstream of the impeller (10) a diffuser (20) is provided defining a plurality of passages (21, 22) for dividing said flow into a plurality of reduced flows and directing said reduced flows toward the vanes (13) of the impeller (10), such as to make the latter rotate in a predetermined direction.

Abstract: An electric valve device (1) for household appliances, includes a hollow body (2) with an inlet (4, 5) and an outlet (5, 4) for a flow of a liquid, between which in the body (2) there is defined a chamber (6) wherein a first valve seat (7) is provided, a (first) obturator (17) moveably mounted in the chamber (6) and cooperating with the first seat (7) for controlling the communication between the inlet (4, 5) and the outlet (5, 4), and a movable member (12) coupled with the obturator (17) and displaceable towards and away from the first valve seat (7) and controlled by means of an electrically operable actuator (10) carried by said body (2). In the body (2) a second valve seat (8) is staggered with respect to the first valve seat (7) along the direction of displacement of the first obturator (7), to which is connected a second obturator (18) displaceable from and towards the second valve seat (8).

Abstract: A valve assembly includes a valve body, having an inlet duct, an outlet duct and an intermediate portion. An electrovalve is located proximal to the intermediate portion. A measurement device is directly connected to the valve body. The measurement device includes a sensor for taking a measurement for determining a physical characteristic of the fluid that can flow in the valve assembly. The electrovalve includes a first electronic circuit for conducting an electric control signal from a control unit to the electrovalve. The measurement device includes a second electronic circuit for conducting the electric signals exchanged between the control unit and the sensor. The first electronic circuit and the second electronic circuit are implemented on a single header or printed circuit board. The electrovalve and the measurement device are mechanically connected directly to the single header or printed circuit board.

Abstract: A conduit with a filter (1) having a body of moulded plastic material, including a central hollow portion (3) shaped like a cup, having an axis (A-A), and a peripheral plate-like portion (4), shaped as an annular flange, extending radially toward the outside around the open end of the central cup-shaped portion (3), wherein in the lateral wall (3a) of the central cup-shaped portion (3) there is provided a plurality of through holes (6), essentially transverse with respect to the axis (A-A), and in the peripheral flange-like portion (4) there is provided a plurality of through holes (5) essentially parallel to the axis (A-A).

Abstract: An electric valve device including a hollow body with an inlet and an outlet for a flow of fluid, in particular a liquid, between which, inside said body, there is defined a chamber in which there is provided a valve seat intended to cooperate with an associated closing member for controlling communication between the inlet and the outlet; and a tubular guiding formation which is nominally coaxial with the valve seat and inside which there is mounted, axially displaceably to and from the seat, a core which carries the closing member and the position of which with respect to the seat can be electromagnetically controlled by means of a winding or solenoid arranged around said tubular formation. The hollow body and the tubular guiding formation are made as a single piece of moulded plastic.

Abstract: A valve device (10) includes a hollow body (12) adapted to be passed through by a flow of fluid and having an inlet section (12a) and at least one outlet section (12b) to receive and dispense fluid. A joining element (14) connects to a fluid source, and connects at the inlet section (12a). A support bracket (16) is assembled to the inlet section (12a) to hold the joining element (14) connected to the hollow body (12), and is configured to be fastened to an external load-bearing structure. One electrically controlled valve (18) is arranged in the hollow body (12) between the inlet section (12a) and the outlet section (12b), and configured for selectively controlling the exit of the flow of fluid.

Abstract: The regulating device (1) comprises a body (2) including a hub (3) which has a first end (3a) connected to a surrounding ring (4), such as to define therebetween at least one passage (6) for the fluid, between the upstream and downstream regions, and the other or second end (3b) of which protrudes with respect to the ring (4). The ring (4) has, on a surface thereof, an annular distribution of projections (7). On the second end (3b) of the hub (3) there is mounted a flexible, ring-shaped, regulating member (8) facing and spaced from the tops of said projections (7) and capable during use of resiliently flexing towards them as a result of and depending on the difference in pressure between the upstream and downstream regions. The ring (4) is further provided with a plurality of restricted holes (10) having a fluid flow parallel to the at least one passage (6).

Abstract: The pilot valve (14) comprises a body (7, 7a) in which there is defined a control chamber (11) which is intended to communicate with the inlet (3) of the hydraulic valve (1) and which, through a restricted outlet passage (12) associated with a valve seat (13), is able to be selectively brought into communication with the outlet (4) of the hydraulic valve (1); at least one core (23) mounted movably within a portion (7a) of said body (7, 7a) and inside the control chamber (11) and carrying a closing member (24) cooperating with the valve seat (13); and an actuator (16-21) including a solenoid or coil (15) of copper wire, mounted around said portion (7a) of the body (7, 7a), for selectively controlling the position of the core (23) and the closing member (24) with respect to the valve seat (13) and the communication between the control chamber (11) and the restricted outlet passage (12); and wherein the ratio of the diameter (d) of the restricted outlet passage (12) to the weight (m) of the solenoid (16) is betw

Abstract: An electric valve device including a body having an inlet and an outlet, and a main valve seat through which the fluid can flow from the inlet to the outlet, a main shutter movable with respect to the valve seat; a control chamber; first and second communication passages between the inlet and the control chamber and between the control chamber and the outlet, respectively; a fixed structure arranged in the control chamber and in which there is defined an auxiliary valve seat, which is coaxial with the main valve seat (8) and which communicates with said second passage; and a solenoid control valve including a control solenoid coaxial with the valve seats for controlling an auxiliary shutter mounted movably in the control chamber and cooperating with the auxiliary valve seat for controlling the communication between the control chamber and the second passage.

Abstract: A solenoid valve device that includes a body (2, 7) with an inlet (3) and an outlet (4) for the fluid, and with a main valve seat (6) through which the fluid can flow from the inlet (3) to the outlet (4); a main plug (8, 9); a control chamber (11) partially delimited by the main plug (8); a first passage (8d, 9b, 9c) for communication between the inlet (3) and the control chamber (11); a second passage (12, 13) for communicating the control chamber with the outlet (4); and a control solenoid valve (14) including a control solenoid (15) which controls a movable unit (17) including a first core (18) which can interact as a movable plug with the second passage (12, 13). Activation of solenoid (15) causes attraction of first core (18) towards a second core (21) and the opening of the second passage (12, 13).

Abstract: The pilot valve (14) comprises a body (7, 7a) in which there is defined a control chamber (11) which is intended to communicate with the inlet (3) of the hydraulic valve (1) and which, through a restricted outlet passage (12) associated with a valve seat (13), is able to be selectively brought into communication with the outlet (4) of the hydraulic valve (1); at least one core (23) mounted movably within a portion (7a) of said body (7, 7a) and inside the control chamber (11) and carrying a closing member (24) cooperating with the valve seat (13); and an actuator (16-21) including a solenoid or coil (15) of copper wire, mounted around said portion (7a) of the body (7, 7a), for selectively controlling the position of the core (23) and the closing member (24) with respect to the valve seat (13) and the communication between the control chamber (11) and the restricted outlet passage (12); and wherein the ratio of the diameter (d) of the restricted outlet passage (12) to the weight (m) of the solenoid (16) is betw

Abstract: A valve device (10) includes a hollow body (12) adapted to be passed through by a flow of fluid and having an inlet section (12a) and at least one outlet section (12b) to receive and dispense fluid. A joining element (14) connects to a fluid source, and connects at the inlet section (12a). A support bracket (16) is assembled to the inlet section (12a) to hold the joining element (14) connected to the hollow body (12), and is configured to be fastened to an external load-bearing structure. One electrically controlled valve (18) is arranged in the hollow body (12) between the inlet section (12a) and the outlet section (12b), and configured for selectively controlling the exit of the flow of fluid.

Abstract: The regulating device (1) comprises a body (2) including a hub (3) which has a first end (3a) connected to a surrounding ring (4), such as to define therebetween at least one passage (6) for the fluid, between the upstream and downstream regions, and the other or second end (3b) of which protrudes with respect to the ring (4). The ring (4) has, on a surface thereof, an annular distribution of projections (7). On the second end (3b) of the hub (3) there is mounted a flexible, ring-shaped, regulating member (8) facing and spaced from the tops of said projections (7) and capable during use of resiliently flexing towards them as a result of and depending on the difference in pressure between the upstream and downstream regions. The ring (4) is further provided with a plurality of restricted holes (10) having a fluid flow parallel to the at least one passage (6).

Abstract: An electric valve device including a hollow body with an inlet and an outlet for a flow of fluid, in particular a liquid, between which, inside said body, there is defined a chamber in which there is provided a valve seat intended to cooperate with an associated closing member for controlling communication between the inlet and the outlet; and a tubular guiding formation which is nominally coaxial with the valve seat and inside which there is mounted, axially displaceably to and from the seat, a core which carries the closing member and the position of which with respect to the seat can be electromagnetically controlled by means of a winding or solenoid arranged around said tubular formation. The hollow body and the tubular guiding formation are made as a single piece of moulded plastic.