Abstract: The present invention relates to an antifreeze device for hydraulic plants comprising a manifold (2) having a manifold inlet (4), a manifold outlet (5) and an auxiliary opening (6) in fluid communication with a valve body (8) engaged to the manifold. The valve body includes an valve inlet facing the auxiliary opening, placed in fluid communication with a drain (10) by means of a chamber (7) housing a temperature-sensitive element (11) sensitive temperature variations. The valve body also includes a shutter (12) movable between a closed position where it closes the auxiliary opening and an open position where it allows fluid to enter through the auxiliary opening, as well as an orifice (13) distinct from the auxiliary opening that places the chamber in fluid communication with the manifold. The present invention also relates to a plant using the antifreeze device (1).

Abstract: A process and apparatus for monitoring and/or controlling at least one air conditioning and/or heating plant (1) including a delivery line (3), a return line (4) and service lines (5) hydraulically interposed between the delivery line (3) and the return line (4), each service line (5) comprising at least one thermal exchange unit (7). The process detects a value (?) of the flow rate of the carrier fluid traversing the thermal exchange unit (7), and determines a temperature difference (?T) between the temperature (Tt1) of the carrier fluid, at the first section (5a), detected at a first instant (t1), and the temperature (Tt2) of the carrier fluid, at the second section (5b), detected at a second instant (t2). The process determines a characteristic function which relates said temperature difference (?T) between the first and the second section to the carrier fluid flow rate (?).

Abstract: A process and apparatus for monitoring and/or controlling at least one air conditioning and/or heating plant (1) including a delivery line (3), a return line (4) and service lines (5) hydraulically interposed between the delivery line (3) and the return line (4), each service line (5) comprising at least one thermal exchange unit (7). The process detects a value (?) of the flow rate of the carrier fluid traversing the thermal exchange unit (7), and determines a temperature difference (?T) between the temperature (Tt1) of the carrier fluid, at the first section (5a), detected at a first instant (t1), and the temperature (Tt2) of the carrier fluid, at the second section (5b), detected at a second instant (t2). The process determines a characteristic function which relates said temperature difference (?T) between the first and the second section to the carrier fluid flow rate (?).

Abstract: Control process of a thermal plant including a distribution circuit for a carrier fluid having a delivery line and a return line, a central thermal treatment group placed on the circuit, and channels, each of which is hydraulically interposed between the delivery line and the return line to serve respective environments. For each of the channels, the plant includes a respective exchange unit, a flow regulator to regulate a flow rate of carrier fluid through in the respective channel, an ambient temperature detector, a temperature detector of the carrier fluid for detecting a delivery temperature of the carrier fluid in each channel, and a return temperature of the carrier fluid in each channel. The process also includes a thermal optimization procedure as a function of ambient temperature, delivery temperature and return temperature of the carrier fluid.

Abstract: A press-fitting component (1) including at least one main body (2) having at least one inlet (4), at least one outlet (5) and at least one channel (3) connecting the inlet (4) with the outlet (5), as well as at least one press-fitting (90) defined in correspondence of at least one of the outlet (5) and the inlet (4) of the main body (2). The press fitting further comprises a predetermined number of projections (9) emerging internally from the main body (2) and made in one piece with the main body (2). A process of assembling the component (1) with a pipe and a process of manufacturing the component (1).

Abstract: The present invention relates to an antifreeze device for hydraulic plants comprising a manifold (2) having a manifold inlet (4), a manifold outlet (5) and an auxiliary opening (6) in fluid communication with a valve body (8) engaged to the manifold. The valve body includes an valve inlet facing the auxiliary opening, placed in fluid communication with a drain (10) by means of a chamber (7) housing a temperature-sensitive element (11) sensitive temperature variations. The valve body also includes a shutter (12) movable between a closed position where it closes the auxiliary opening and an open position where it allows fluid to enter through the auxiliary opening, as well as an orifice (13) distinct from the auxiliary opening that places the chamber in fluid communication with the manifold. The present invention also relates to a plant using the antifreeze device (1).

Abstract: A press-fitting component (1) including at least one main body (2) having at least one inlet (4), at least one outlet (5) and at least one channel (3) connecting the inlet (4) with the outlet (5), as well as at least one press-fitting (90) defined in correspondence of at least one of the outlet (5) and the inlet (4) of the main body (2). The press fitting further comprises a predetermined number of projections (9) emerging internally from the main body (2) and made in one piece with the main body (2). A process of assembling the component (1) with a pipe and a process of manufacturing the component (1).

Abstract: Control process of a thermal plant including a distribution circuit for a carrier fluid having a delivery line and a return line, a central thermal treatment group placed on the circuit, and channels, each of which is hydraulically interposed between the delivery line and the return line to serve respective environments. For each of the channels, the plant includes a respective exchange unit, a flow regulator to regulate a flow rate of carrier fluid through in the respective channel, an ambient temperature detector, a temperature detector of the carrier fluid for detecting a delivery temperature of the carrier fluid in each channel, and a return temperature of the carrier fluid in each channel. The process also includes a thermal optimization procedure as a function of ambient temperature, delivery temperature and return temperature of the carrier fluid.

Abstract: A process and apparatus for monitoring and/or controlling at least one air conditioning and/or heating plant (1) including a delivery line (3), a return line (4) and service lines (5) hydraulically interposed between the delivery line (3) and the return line (4), each service line (5) comprising at least one thermal exchange unit (7). The process detects a value (?) of the flow rate of the carrier fluid traversing the thermal exchange unit (7), and determines a temperature difference (?T) between the temperature (Tt1) of the carrier fluid, at the first section (5a), detected at a first instant (t1), and the temperature (Tt2) of the carrier fluid, at the second section (5b), detected at a second instant (t2).

Abstract: A method to control a carrier fluid through a service line (5) of a conditioning and/or heating system (1). The service line includes a heat exchange unit (7), a flow regulator (8), temperature sensors (9; 9a, 9b) detecting a temperature difference (?Ti) between the carrier fluid in a first section (5a) of the service line (5) upstream of said heat exchange unit (7) and carrier fluid in a second section (5b) of the service line (5) downstream of the same heat exchange unit (7). The method includes calculating a value assumed by a control parameter (Pc) which is a function of at least one or more values assumed by the temperature difference in the transition of the flow regulator from a first to a second operating condition, for then determining whether the value of the control parameter (Pc) is higher than a threshold (S).

Abstract: A thermostatic device for a pipeline of a sanitary water supply or dispensing system and including a temperature meter which detects the temperature of the sanitary water entering the thermostatic device, a flow regulator which regulates a rate of sanitary water exiting from the device, and a control unit. The flow regulator operates in a first operating mode and a second operating mode. The first operating mode is a steady-state operating mode. The second operating mode is a steady-state setting operating mode in which the flow rate of sanitary water leaving the thermostatic device is a minimum flow rate. The control unit is configured to acquire, receive and/or calculate a reference temperature and arrange the switching of the operating mode when the temperature meter detects a temperature of the sanitary water greater than the reference temperature.

Abstract: A differential pressure meter (1) whose body (7) includes an inlet opening (7a), an outlet opening (7z), a channel (70), and a housing (16) defining an operating seat (160) separate from the channel (70) and having first and second passage openings (16p, 16s). A sealing casing (2) in the operating seat (160) defining an inner volume (200). A sensitive element (3) is in the casing (2) to divide the inner volume (200) into first and second chambers (4, 5). A first surface (3d) of the sensitive element (3) directed towards the first chamber (4), a second surface (3s) directed towards the second chamber (5). A first pressure intake (4p) formed on the casing (2), the first passage opening (16p) in communication with the first chamber (4), and a second pressure intake is formed on the casing (2), the second passage opening (16s) in communication with the second chamber (5).

Abstract: An assembly installable in an air conditioning and/or heating system of a room including a body (7) having an inlet opening (7a), an outlet opening (7z) and a channel (70) providing fluid communication between the inlet and outlet openings (7a, 7z). An orifice in the body (7) and shaped such that when a flow runs through the channel (70) between the inlet opening (7a) and the outlet opening (7z), a pressure difference is generated between the first region (7p) and the second region (7s) within the body (7), the first region (7p) being located upstream of the orifice, the second region (7s) downstream of the orifice. The assembly includes a meter (1) for detecting the pressure difference and a variator of at least one geometric feature of the orifice, the variator being able to arrange the orifice in different configurations, each corresponding to a respective geometric feature of the orifice.

Abstract: A method to control a carrier fluid through a service line (5) of a conditioning and/or heating system (1). The service line includes a heat exchange unit (7), a flow regulator (8), temperature sensors (9; 9a, 9b) detecting a temperature difference (?Ti) between the carrier fluid in a first section (5a) of the service line (5) upstream of said heat exchange unit (7) and carrier fluid in a second section (5b) of the service line (5) downstream of the same heat exchange unit (7). The method includes calculating a value assumed by a control parameter (Pc) which is a function of at least one or more values assumed by the temperature difference in the transition of the flow regulator from a first to a second operating condition, for then determining whether the value of the control parameter (Pc) is higher than a threshold (S).

Abstract: A thermostatic device for a pipeline of a sanitary water supply or dispensing system and including a temperature meter which detects the temperature of the sanitary water entering the thermostatic device, a flow regulator which regulates a rate of sanitary water exiting from the device, and a control unit. The flow regulator operates in a first operating mode and a second operating mode. The first operating mode is a steady-state operating mode. The second operating mode is a steady-state setting operating mode in which the flow rate of sanitary water leaving the thermostatic device is a minimum flow rate. The control unit is configured to acquire, receive and/or calculate a reference temperature and arrange the switching of the operating mode when the temperature meter detects a temperature of the sanitary water greater than the reference temperature.

Abstract: A conditioning or heating plant and a process of controlling the plant, wherein plant comprises at least one circuit for distributing a carrier fluid, having a delivery line, a return line, and a plurality of channels directly or indirectly connected to the delivery line and return line and configured for supplying respective environments to be conditioned and/or heated, at least one heat treatment central group placed on the circuit. The plant has, for each of the channels, at least one respective heat exchange unit and at least one flow-rate regulator.

Abstract: A conditioning or heating plant and a process of controlling the plant, wherein plant comprises at least one circuit for distributing a carrier fluid, having a delivery line, a return line, and a plurality of channels directly or indirectly connected to the delivery line and return line and configured for supplying respective environments to be conditioned and/or heated, at least one heat treatment central group placed on the circuit. The plant has, for each of the channels, at least one respective heat exchange unit and at least one flow-rate regulator.

Abstract: A differential pressure meter (1) whose body (7) includes an inlet opening (7a), an outlet opening (7z), a channel (70), and a housing (16) defining an operating seat (160) separate from the channel (70) and having first and second passage openings (16p, 16s). A sealing casing (2) in the operating seat (160) defining an inner volume (200). A sensitive element (3) is in the casing (2) to divide the inner volume (200) into first and second chambers (4, 5). A first surface (3d) of the sensitive element (3) directed towards the first chamber (4), a second surface (3s) directed towards the second chamber (5). A first pressure intake (4p) formed on the casing (2), the first passage opening (16p) in communication with the first chamber (4), and a second pressure intake is formed on the casing (2), the second passage opening (16s) in communication with the second chamber (5).

Abstract: An assembly installable in an air conditioning and/or heating system of a room including a body (7) having an inlet opening (7a), an outlet opening (7z) and a channel (70) providing fluid communication between the inlet and outlet openings (7a, 7z). An orifice in the body (7) and shaped such that when a flow runs through the channel (70) between the inlet opening (7a) and the outlet opening (7z), a pressure difference is generated between the first region (7p) and the second region (7s) within the body (7), the first region (7p) being located upstream of the orifice, the second region (7s) downstream of the orifice. The assembly includes a meter (1) for detecting the pressure difference and a variator of at least one geometric feature of the orifice, the variator being able to arrange the orifice in different configurations, each corresponding to a respective geometric feature of the orifice.

Abstract: A conditioning or heating plant and a process of controlling the plant, wherein plant comprises at least one circuit for distributing a carrier fluid, having a delivery line, a return line, and a plurality of channels directly or indirectly connected to the delivery line and return line and configured for supplying respective environments to be conditioned and/or heated, at least one heat treatment central group placed on the circuit. The plant has, for each of the channels, at least one respective heat exchange unit and at least one flow-rate regulator.