The present invention concerns a system (1; 501; 601; 701; 801) for dispensing a fluid (L), comprising a container (C; C) for the fluid (L) and a device (10; 210; 210; 310; 410; 410) for dispensing the fluid (L). The device (10; 210; 210; 210; 410; 410) comprises a collapsible chamber (20) which defines a volume (V) suited to receive a quantity of said fluid (L) to be dispensed. The chamber (20) is defined by a first portion (30) and a second portion (130) mutually coupled with each other, wherein the first portion (30) comprises an area connected to the container (C; C) and wherein the second portion (130) comprises an area connected to the container (C; C).

The disclosure concerns a mixing valve for mixing two coating agent components (e.g. master batch and hardener) to form a multi-component mixture, with two coating agent inlets for supplying the two coating agent components and with two coating agent valves for controlling the coating agent flow through the two coating agent inlets, as well as with a coating agent outlet for discharging the multi-component mixture in a specific outflow direction. The disclosure provides that at least one of the coating agent valves is formed as a rotary slide valve having two plane-parallel valve discs which are rotatable relative to each other about an axis of rotation.

The present disclosure relates to a nozzle assembly and a spray system including the same. The nozzle assembly includes a base body having one end including an outlet through which a first fluid and a second fluid are discharged, and another end connected to a first supply line, one side of the base body being connected to a second supply line, and an inserter that is inserted into the base body, and has a guide groove arranged on a surface thereof, wherein, in the base body, a first pressure of the first fluid supplied through the first supply line is less than a second pressure of the second fluid supplied through the second supply line, and in the inserter, the first fluid moves to the outlet through an internal space, and the second fluid moves to the outlet along the guide groove.

A fixing structure of a spa sprayer, the spa sprayer comprises: a body, a holder, and a water spray unit. The body includes an insertion segment, a connection segment, a motor, a holder, an annular positioning section, multiple fixers, and multiple bolts. The holder has multiple orifices, the annular positioning section has multiple seats and a receiving groove, the multiple seats has a plurality of recesses, and each of the multiple seats has two opposite notches. Each of the multiple fixers includes a rotation element, a drive element, and a first rotary shaft. The rotation element has a rotatable coupling portion and an abutting portion. The rotatable coupling portion has a second rotary shaft, and the rotatable coupling portion has two opposite first apertures. The drive element has a second aperture and a threaded aperture. The water spray unit is fixed on the holder of the body.

A fixing structure of a spa sprayer, the spa sprayer comprises: a body, a holder, and a water spray unit. The body includes an insertion segment, a connection segment, a motor, a holder, an annular positioning section, multiple fixers, and multiple bolts. The holder has multiple orifices, the annular positioning section has multiple seats and a receiving groove, the multiple seats has a plurality of recesses, and each of the multiple seats has two opposite notches. Each of the multiple fixers includes a rotation element, a drive element, and a first rotary shaft. The rotation element has a rotatable coupling portion and an abutting portion. The rotatable coupling portion has a second rotary shaft, and the rotatable coupling portion has two opposite first apertures. The drive element has a second aperture and a threaded aperture. The water spray unit is fixed on the holder of the body.

The present disclosure relates to a nozzle for discharging compressed air having a circumferential surface section which extends from a feed end to a discharge end and extends at least partially axially, and an end section produced in one piece, which extends radially inward from the circumferential surface section at the discharge end. In order to allow efficient and targeted compressed air discharge, the present disclosure envisages that a plurality of helical passages extend through the end section, each of which slopes in a tangential direction, at least in some section or sections, and into each of which a first discharge opening for compressed air opens.

The invention provides apparatus for spray coating of substrates using a rotary bell cup atomizer equipped with an air-driven main turbine and a supply of pressurized primary shaping air conveyed through primary shaping air channels and nozzles for controlling the shape of the atomized spray pattern exiting the bell cup edge, the apparatus further including an auxiliary, independently air-driven turbine equipped with a rotatable vortex generator, and including a separate air supply of secondary shaping air for supplying secondary shaping air through secondary air channels and nozzles to further control the shape of the atomized spray pattern exiting the bell cup, which secondary shaping air, on passing through the vortex generator, produces a curtain of shaping air in a vortex-like pattern, which, in conjunction with and mixing with the primary shaping air from the primary air nozzles, produces improved pattern control, transfer efficiency and quality of coating on the substrate.

A water outlet mechanism, includes at least two diversion waterway sets connected to the water source and an outlet, each diversion waterway set has at least two diversion waterways and at least two water diversion passages; water from the at least two diversion waterways impact and converge and then enter the water diversion passages, the flowing direction of the at least two water diversion passages intersect, and water from the at least two water diversion passages impact and then spray out of the outlet. Water from at least two diversion waterways impacts and converges and then enters the water diversion passage, the water particles are refined and shaken; the direction of the at least two water diversion passages intersect, and water in the cavity of the inlet impact again to form wavy water type and then sprays out of the outlet.

A spray nozzle for a system for dispensing a pressurized product is provided with a pushbutton. The nozzle includes a dispensing orifice and a vortex chamber emerging on the dispensing orifice. The chamber includes a conical part defined by a conical side surface. The conical side surface converges from an upstream end toward a downstream supply end of the dispensing orifice. The nozzle further includes at least one supply channel of the vortex chamber, each supply channel emerging in the upstream end of the conical part, the conical side surface having at least one stepped portion provided with multiple levels.

A device and method for dispersing oil on water comprises a rig structure for being mounted in a vessel, the rig structure including a front transverse structure with at least one nozzle for flushing with pressurized water supplied from a pressure facility located on the vessel.