Abstract: An actuator (1) is fixed on a valve (2) through a fixing joint (3) which comprises a tubular sleeve (32) on which a tightening nut (30) is screwed; the nut (30) and the sleeve (32) are provided with a conical thread connection (34, 300); by screwing the nut (30), a plurality of longitudinal prolongations (40), arranged in a crown around the axis of the sleeve (32), tightens on a fixing head (20) of the valve (2), firmly fixing the actuator (1) to the valve (2); the joint at issue provides an alternative to a flange connection, equally solid and resistant to unscrewing due to vibrations; by resting against a mechanical stop surface (24) the nut (30), being unscrewed, can act as an extractor that easily removes the joint (3) from the head (20).

Abstract: An actuator (1) is fixed on a valve (2) through a fixing joint (3) which comprises a tubular sleeve (32) on which a tightening nut (30) is screwed; the nut (30) and the sleeve (32) are provided with a conical thread connection (34, 300); by screwing the nut (30), a plurality of longitudinal prolongations (40), arranged in a crown around the axis of the sleeve (32), tightens on a fixing head (20) of the valve (2), firmly fixing the actuator (1) to the valve (2); the joint at issue provides an alternative to a flange connection, equally solid and resistant to unscrewing due to vibrations; by resting against a mechanical stop surface (24) the nut (30), being unscrewed, can act as an extractor that easily removes the joint (3) from the head (20).

Abstract: The driving system according to the invention comprises a motor-driven actuator (1), a valve (2) and a joint (3?) connecting them. The joint (3?) includes a connecting shaft (50?) having a hole (506) arranged to receive the end of a lever (6?). By inserting the lever (6?) into the passage left open by the opening (320) and the hole (506), the connecting shaft (50?) is disconnected from the actuator (1) and the stopper (280) of the valve (2) can be manually rotated without damaging the actuator itself. When not in use, the lever (6?) can be removed from the hole (6?) so that the lever does not create dangers. The invention further concerns the joint (3) connecting the actuator (1) and the valve (2), and the kit for supplying the lever (6?) along with the joint (3) and possibly the valve (2) or the actuator (1).

Abstract: The present invention relates to a manifold for fluids (10) comprising quick action elements, male- (15) or female (16), wherein one of such elements, in particular the female element (16), comprises an annular protecting shell (33) arranged so as to protect the coupling male element from tampering or damages after the coupling is assembled Since the manifold (10) has a simple structure, can be made either of plastic- or of metallic material.