Abstract: A modular element for making reverse osmosis filtering devices includes: at least one first container and a second container, each of which is provided with a tubular lateral wall, with a bottom plate which closes a first axial end of said lateral wall, with an inlet, with a first outlet and with a second outlet, the first and second containers being arranged so that the respective lateral walls are arranged adjacent and have mutually parallel central axes, and a scavenging duct which connects the second outlet of the first container with the inlet of the second container, the first container, the second container and the scavenging duct are obtained as a single monolithic body.

Abstract: A container for filtering devices includes: a tubular lateral wall, a bottom plate which closes a first axial end of said lateral wall, and a closing system configured to close—in an openable fashion—a second and opposite axial end of said lateral wall. The closing system includes: an occlusion element, which includes a cylindrical lower portion coaxially insertable into the lateral wall, and an upper portion from which one or more abutment elements configured to rest on the edge of the second axial end of the lateral wall project, one or more coaxial annular seats on the outer lateral surface of the lower portion of the occlusion element configured to receive an annular sealing gasket, and a tightening member including a ring nut configured to surround the occlusion element and to be axially constrained to the lateral wall's exterior, at the second axial end thereof.

Abstract: The high-pressure multi-function head especially for water-cleaning machines comprises a first main body which exhibits a conduit for a washing liquid, extending along a longitudinal axis from an inlet to an outlet and a portion having a narrowed transversal section; a nozzle housed in the conduit; an auxiliary body inserted in the conduit and constituting a frustoconical seating for a front end of the nozzle; means for conveying the washing liquid interpositioned between the inlet and the portion having a narrowed transversal section and forming upstream of the nozzle at least one oblique jet with respect to the longitudinal axis in order to give the nozzle a rotating and conical motion with a vertex in the frustoconical seating; and means for regulating a trim of the head for translating the auxiliary body and the nozzle along the longitudinal axis between a retracted first operating position for obtaining a high-pressure rotating jet, an intermediate second operating position, for obtaining a high-pressure

Abstract: The valve (1) exhibits an external body (2) affording an internal cavity (3) which terminates externally of the external body (2) with an outlet section (4) and an inlet section (5). A piston (7) is slidingly and sealedly housed inside the cavity (3), and defines a first chamber (8) and a second chamber (9) therein. The piston (7) internally exhibits a channel (11) communicating with the first chamber (8), through a first hole (12), and the second chamber (9), through a second hole (13). Internally of the channel (11) the piston (7) exhibits means for intercepting the fluid (15) for slowing fluid passage from the first chamber (8) to the second chamber (9).

Abstract: With the dispenser the flow rate of detergent can be adjusted in accordance with the water flow rate. The dispenser comprises an aspiration conduit connected to the expansion chamber of an ejector by a channel fashioned radially on a head of the aspiration conduit. The height of the channel can be changed by rotating the head with respect to the body of the dispenser.

Abstract: The spray gun is subdivided into a first body (4), in ternally of which a cavity (6) is afforded, and a second body (5) which is perpendicular to the first body (4) and internally afforded a through hole (25) communicating with the cavity (6). An obturator (14) is present internally of the cavity (6), on which obturator (14) elastic means (21) act. Means for activating (26) are located internally of the through hole (25), which activate the obturator (14) and open into the cavity (6) and are in contact with the obturator (14).

Abstract: The activating mechanism comprises a manually-operated control lever rotatably constrained at a first end thereof to a pivot arranged in proximity of a front portion of a handle grip of a spray gun and an activating lever acting on a pusher element of an intercept valve. The activating lever has a first end portion which is rotatably constrained on a hinging pivot arranged in proximity of a back portion of the handle grip and a second end portion which is operatively constrained to the control lever.

Abstract: The pressure switch, constituted by a cylindrical body, comprises two portions which are interconnected; also, a first of the portions is connected to a micro-switch and the second to an inlet for pressurise fluid delivery. A stem is housed inside the cylindrical body and oscillates alternatively between an inactive position, with the micro-switch deactivated, and an active position, with the micro-switch activated by pressing. Elements for slowing a translation velocity of the stem are included between the stem and the inlet.

Abstract: The spray gun is subdivided into a first body (4), in ternally of which a cavity (6) is afforded, and a second body (5) which is perpendicular to the first body (4) and internally afforded a through hole (25) communicating with the cavity (6). An obturator (14) is present internally of the cavity (6), on which obturator (14) elastic means (21) act. Means for activating (26) are located internally of the through hole (25), which activate the obturator (14) and open into the cavity (6) and are in contact with the obturator (14).

Abstract: The intercept valve comprises a main body exhibiting an internal cavity, a ball obturator arranged in the cavity, an annular seating having a longitudinal central axis, against which seating the ball obturator rests when the valve is closed, and a pusher element which exerts on the ball obturator a thrust which can detach the ball obturator from the annular seating. The pusher element is oriented in such a way that the thrust it exerts causes a displacement of the ball obturator in a direction which is transversal to the central axis of the annular seating.

Abstract: The process is for producing in particular an internal conduit and is applied using a mould for realising a plurality of internal conduits for transport of a liquid which is entirely made of plastic material. The mould includes a top die which is translatable with respect to a bottom die and also includes two cores for realising internal profiles of the internal conduit, and an extraction plate associated to a plurality of extractors for expelling internal conduits from the mould at completion of the production process.

Abstract: The pressure switch, constituted by a cylindrical body, comprises two portions which are interconnected; also, a first of the portions is connected to a micro-switch and the second to an inlet for pressurise fluid delivery. A stem is housed inside the cylindrical body and oscillates alternatively between an inactive position, with the micro-switch deactivated, and an active position, with the micro-switch activated by pressing. Elements for slowing a translation velocity of the stem are included between the stem and the inlet.

Abstract: The high-pressure multi-function head especially for water-cleaning machines comprises a first main body which exhibits a conduit for a washing liquid, extending along a longitudinal axis from an inlet to an outlet and a portion having a narrowed transversal section; a nozzle housed in the conduit; an auxiliary body inserted in the conduit and constituting a frustoconical seating for a front end of the nozzle; means for conveying the washing liquid interpositioned between the inlet and the portion having a narrowed transversal section and forming upstream of the nozzle at least one oblique jet with respect to the longitudinal axis in order to give the nozzle a rotating and conical motion with a vertex in the frustoconical seating; and means for regulating a trim of the head for translating the auxiliary body and the nozzle along the longitudinal axis between a retracted first operating position for obtaining a high-pressure rotating jet, an intermediate second operating position, for obtaining a high-pressure

Abstract: The intercept valve, in particular for high-pressure washing guns in water-cleaning machines, comprises a main body having a tubular conformation, an obturator arranged internally of the main body and mobile between a closed position thereof and an open position thereof, an annular seating for the obturator housed in a through-hole afforded in the main body, an activating pivot of the obturator which activating pivot is internally slidable in a through-hole afforded in the main body, means for manoeuvring which act on the activating pivot, and at least one seal arranged at the through-hole about the activating pivot and arranged adjacent to an internal mouth of the through-hole afforded in the main body.

Abstract: With the dispenser the flow rate of detergent can be adjusted in accordance with the water flow rate. The dispenser comprises an aspiration conduit connected to the expansion chamber of an ejector by a channel fashioned radially on a head of the aspiration conduit. The height of the channel can be changed by rotating the head with respect to the body of the dispenser.

Abstract: The activating mechanism comprises a manually-operated control lever rotatably constrained at a first end thereof to a pivot arranged in proximity of a front portion of a handle grip of a spray gun and an activating lever acting on a pusher element of an intercept valve. The activating lever has a first end portion which is rotatably constrained on a hinging pivot arranged in proximity of a back portion of the handle grip and a second end portion which is operatively constrained to the control lever.

Abstract: The invention relates to the sector of pressure-washing machines, in the form of a valve with by-pass function when the gun is closed, and allows reduction of the pressure inside the delivery duct during operation in by-pass mode. In particular this valve comprises an external housing (1) defining a chamber (2) provided with an inlet section (3), an outlet section (4) and a discharge section (5). It also comprises means (6) for shutting off the discharge section (5) or the outlet section (4), which are located inside the chamber (2) and actuated in a reciprocating manner by a difference in pressure and by resilient means (7) and provided with means (8) for communication between the inlet section (3) and the outlet section (5) operating during discharge of the flow through the discharge section (5).