A nozzle comprising: a main body having a sidewall, a first end and, a second end, wherein the main body has a central channel extending from the first end to the second end and at least one aperture extending through the sidewall distal to the second end and a retention means is positioned within the channel positioned between the second end and the at least one aperture; a collar having a lip disposed at a first end and a securement means disposed at a second end adjustably attached to the main body, wherein a cavity is formed between the main body and the collar and in a first position the lip creates a tight seal with the main body; a blocker positioned within the channel of the main body, wherein the blocker freely rotating about a central axis of the channel; and a means of axially retaining the blocker within the channel.

A liquid saving device includes a liquid guide and a vortex adaptor. The liquid guide includes a primary recess, an indentation, and a plurality of primary pores. The vortex adaptor includes at least one air inlet structure, a trench, a gap and a center through hole. The plurality of primary pores is coupled to the indentation for receiving a first liquid stream to generate a same plurality of second liquid streams at respective ends. At least part of the plurality of primary pores have different lengths. A primary pore has a shorter length if the first primary pore outputs its corresponding second liquid stream with a larger deflection, and vice versa. The trench receives both at least one secondary liquid stream and air to generate a first aerated vortex. An elevated flow of the first aerated vortex with a spray-form liquid stream to generate a second aerated vortex.

A multi-cone, multi-stage spray nozzle includes a nozzle body and outer and inner valve stems. The nozzle body defines an outer valve seat disposed at its distal end. The outer valve stem is slidably disposed in the nozzle body. The inner valve stem is slidably disposed in the outer valve stem. The inner valve stem occupies an open position and the outer valve stem occupies a closed position upon the application of a first pressure on the distal ends of the inner and outer valve stems. And, the inner and outer valve stems both occupy open positions upon the application of a second pressure that is greater than the first pressure on the distal ends of the inner and outer valve stems.

Disclosed herein is a sprayer which may include, but is not limited to, a main body with a neck an inner cross section area of which gradually decreases; an air blowing module installed for air in the inside of the main body to be discharged to the outside; a liquid medicine container installed at a lower side of the main body and having air holes at a lid of the liquid medicine container; a nozzle cap having a minimum diameter part at an inner intermediate portion and assembled to the neck of the main body; a nozzle a rear end of which is open and connected to an end of a liquid supply pipe; and a rib which is configured to support in such a way that a central axis of the nozzle can position on a central axis of the nozzle.

A dosing unit includes a fluid injector having a valve seat; a valve needle movable within the fluid injector between a closed position in which an end engages with the valve seat to block a flow of fluid from exiting the fluid injector and an open position in which the end is spaced apart from the valve seat so as to allow fluid to exit the fluid injector. The valve body, the valve seat and the valve needle form an outwardly opening valve assembly. A pole piece fixedly is disposed within the valve body, and an armature is coupled to the valve needle upstream of the pole piece. A coil is disposed around the pole piece and the armature so as to generate a force when energized to move the armature toward the pole piece and to cause the valve needle to move from the closed to the open position.

An apparatus for use in marine platform jacking is disclosed herein. In one aspect, a jetting valve includes a valve body with a piston assembly disposed therein. The piston assembly is selectively operated to open and close the valve. A biasing member is coupled to the piston assembly. The piston assembly includes a first piston and a second piston. The dual pistons, in cooperation with the biasing member, allow the valve to self-seal thereby preventing entry of a fluid which is external to the valve.

A spray system includes nozzles spaced along a distribution line. Each nozzle actuates the position of one or more internal valves based on a spray command received from a system control module. Sensors generate position information regarding the actuation of the valves. The actual valve positions are compared to expected valve positions to determine a deviation between the two. The deviation can be compared to a threshold to determine a status of that nozzle. A normal nozzle status can be generated based on the deviation being less than the threshold. An abnormal nozzle status can be generated based on the deviation being equal to or exceeding the threshold.

A spray nozzle assembly for a steam desuperheating or attemperator device. In one embodiment, the spray nozzle sub-assembly of the spray nozzle assembly comprises a fixed nozzle element which is integrated into a spring-loaded nozzle element, and is specifically adapted to improve water droplet fractionation at higher flow rates while further providing an effectively higher spray area through the formation of two water cones (rather than a single water cone), such water cones being sprayed into a flow of superheated steam in order to reduce the temperature of the steam. In another embodiment, the spray nozzle sub-assembly of the spray nozzle assembly comprises a nested pair of spring-loaded primary and secondary nozzle elements which are also adapted to provide an effectively higher spray area through the formation of two water cones.

A nozzle for spraying a pressurized liquid. The nozzle is adapted for processing a pressurized liquid through an orifice of the nozzle, where the pressurized liquid forces a nozzle member away from a seat. The nozzle member is moved by the pressurized liquid against a counterforce produced by a gas pressure. Gas pressure operates against a plunger to produce a force acting on the nozzle member in opposition to the liquid pressure. A desired upstream pressure of the pressurized liquid is established when the forces across the movable nozzle member are balanced. A desired upstream pressure of the pressurized liquid can be changed by changing the pressure of the gas that forces the plunger against the movable nozzle member.

A spray head includes a main body, a central shaft, a securing ring, a spout and a knob. The main body has a handle and a chamber, the chamber provided with a connecting opening allowing the central shaft to be inserted thereof. A disk body is disposed between the connecting section and the sleeve, the central shaft entering into the main body through the connecting opening, and the sleeve inserted into the chamber and engaging with the stepped edge such that the connecting section extends out of the chamber. The spout is provided with an outer shell and an inner tube. The knob has a stopper, and an end of the stopper has a screw, the screw of the knob inserted from the cone of the spout and engaging with the threaded aperture of the inner tube of the central shaft.