Abstract: A valve comprises a housing, a control handle rotatable relative to the housing, a flow control mechanism in the housing and connected with the control handle, stop seats formed on the housing, a locking body in contact with the control handle, stopping portions formed in the locking body and movable between a locking position in which the stopping portions engage the stop seats and a release position in which the stopping portions are moved away from the stop seats, a control surface formed in the handle. The handle is movable between a lowered position towards the housing and a position raised from the housing. In the raised position, the control surface pushes the stopping portions in the locking position and, in the lowered position, the control surface allows the stopping portions to return in the release position.

Abstract: Ball valve with a housing which forms an inlet, an outlet and an obturator seat, an obturator which forms an inner cavity with an inlet aperture, an outlet aperture opposite the inlet aperture, an auxiliary aperture between the inlet aperture and the outlet aperture, as well as a closed side opposite the auxiliary aperture. The inlet aperture and the outlet aperture connect the inlet with the inner cavity and with the obturator seat and an outer channel is formed in an outer surface of the closed side which, when the obturator is rotated from a closed position towards an open position, opens a first outer flow passage between the obturator seat and the outlet before the outlet aperture opens a second inner flow passage between the inner cavity and the outlet.

Abstract: A ball valve including a valve body with connection portions, one or more threaded ring-nuts screwable to the connection portions to connect them, a control handle and a ring-nut spanner tool suitable for engaging the ring-nut to screw and unscrew the ring-nuts from the connection portions. The ring-nut spanner tool is housed in a rest position in the control handle and can be moved from the rest position to a working position outside the control handle. In the working position, the ring-nut spanner tool can engage the ring-nut.

Abstract: Ball valve with a housing which forms an inlet, an outlet and an obturator seat, an obturator which forms an inner cavity with an inlet aperture, an outlet aperture opposite the inlet aperture, an auxiliary aperture between the inlet aperture and the outlet aperture, as well as a closed side opposite the auxiliary aperture. The inlet aperture and the outlet aperture connect the inlet with the inner cavity and with the obturator seat and an outer channel is formed in an outer surface of the closed side which, when the obturator is rotated from a closed position towards an open position, opens a first outer flow passage between the obturator seat and the outlet before the outlet aperture opens a second inner flow passage between the inner cavity and the outlet.

Abstract: A ball valve including a valve body with connection portions, one or more threaded ring-nuts screwable to the connection portions to connect them, a control handle and a ring-nut spanner tool suitable for engaging the ring-nut to screw and unscrew the ring-nuts from the connection portions. The ring-nut spanner tool is housed in a rest position in the control handle and can be moved from the rest position to a working position outside the control handle. In the working position, the ring-nut spanner tool can engage the ring-nut.

Abstract: A device for conveying and/or distributing fluids comprises a housing with connection portions, one or more threaded ring nuts that can be screwed to the connection portions in order to join them, a control handle and a tightening seat formed in the housing and adapted to support the control handle in a tightening position, rotatable around a tightening axis. The control handle comprises a drive portion which, in the tightening position, engages with a coupling portion of the ring nut, in a manner such that a rotation of the control handle around the tightening axis leads to a screwing or an unscrewing of the ring nut.

Abstract: A fluid conveying and/or delivering device (1) comprises a housing (2) with connecting portions (7), as well as a labeling module (5) with a label seat (6) to accommodate an identification label (8) and a protection lid (9) being removably connected to the device (1) such as to close the label seat (6) outwardly of the device (1), wherein the protection lid (9) comprises a transparent window (10) allowing to view the identification label (8) within the label seat (6) from the outside of protection lid (9).

Abstract: An anti-unscrewing device for coupling the tubular ends of two components in fluid conveying or delivery systems by means of a threaded ring nut that can be screwed to one of said tubular ends to connect said ends, wherein said anti-unscrewing device comprises a connecting portion to connect the device to one of the components and at least one counter element provided with an engaging portion suitable to engage a corresponding engaging surface formed at said ring nut, such that the engaging portion can be displaced by means of a movement of the ring nut. There are further provided guide means dictating a movement path for the counter element, such that an unscrewing movement of the ring nut will cause the engaging portion to move to a locking position relative to the ring nut thereby preventing the ring nut from unscrewing.

Abstract: A device for conveying and/or distributing fluids comprises a housing with connection portions, one or more threaded ring nuts that can be screwed to the connection portions in order to join them, a control handle and a tightening seat formed in the housing and adapted to support the control handle in a tightening position, rotatable around a tightening axis. The control handle comprises a drive portion which, in the tightening position, engages with a coupling portion of the ring nut, in a manner such that a rotation of the control handle around the tightening axis leads to a screwing or an unscrewing of the ring nut.

Abstract: Apparatus for molding a thermoplastic tubular product such as a bushing having an internally threaded major diameter portion and an integral truncated minor diameter portion. A mold provided with a mold shell which jointly with a two-part mold core defines a mold cavity having a shape complementary to the shape of the molded bushing. The molded bushing has an internal undercut in the form of a thread in the major diameter portion thereof. The mold core is made as a core pin and an externally threaded sleeve of greater diameter than the core pin circumferentially of a portion of the core pin. Provision is made for moving the mold elements relatively to define the mold cavity and to effectively release the core by axial compression of the molded product while exposed on the mold core to cause it to swell radially outwardly and release the externally threaded core which forms the internal thread on the molded bushing.

Abstract: A ball valve having a valve body within which is provided a ball for opening and closing the valve. The ball valve is constructed with bushings and lock rings arranged for ease of assembly and disassembly for inspection of the wear of internal ring seals. An internal lock ring is provided with recesses in an end face for receiving a tool which is part of the operating handle of the valve.

Abstract: The present invention relates to a method and the relative device for the effecting thereof, for eliminating the feeder head portion which results at the end of the injection moulding process for articles of thermoplastic material.

Abstract: A clamping ring in a joint sleeve for pipes, with a compound structure comprising a metal tooth among synthetic material teeth on an inner surface of the ring. In this way said ring assures an efficient clamping effect, without the drawbacks met by hard metal rings with respect to synthetic material rings.