Disclosed is a nozzle assembly for a sprayer, when a power of a sprayer is turned OFF, capable of not only minimizing an amount of liquid chemical remaining in a flow path at an inner side of a nozzle but also preventing backflow of the liquid chemical. The a nozzle assembly for a sprayer includes a nozzle assembly body molded in a ‘+’ shape; a nozzle assembled and installed in each of the plurality of nozzle assembly holes; a plurality of insert pieces fitting from an outside to an inside of four directions of a slide hole formed in a ‘+’ shape and forming a flow path for guiding a fluid flowing; and an end cap fixed and coupled to an outside in four directions of the slide hole in a state.

A fountain apparatus may include a wall insert that can be threadably attached to a water inlet port in the wall of a pool. The wall insert may split water flow into two streams, one that passes through a jet nozzle ball and into the pool, and the other that flows into a reservoir that supplies water to a stream nozzle tip to form a water fountain. A water insert reservoir cap may be releasably engageable with the wall insert and include two fluid passageways, one corresponding to the flow path to the jet nozzle ball and the other corresponding to the reservoir and the flow path to the stream nozzle tip. A reservoir locking cap may be used to secure the wall insert reservoir cap to the wall insert. A jet nozzle cap may be used to secure the jet nozzle ball to the reservoir locking cap.

An adhesive dispensing system for applying liquid adhesive to a substrate using different nozzles with the same manifold is disclosed. The adhesive dispensing system includes a manifold having a body, a first clamp configured to engage the body of the manifold, a second clamp configured to engage the body of the manifold, and a nozzle. The first and second clamps secure the nozzle to the body of the manifold. The body of the manifold has a first contact surface that engages the first clamp and a second contact surface that engages the second clamp and the nozzle, where the second contact surface is angularly offset from the first contact surface.

An applicator for a syringe is provided that includes a hub configured to be disposed at least partially within a nozzle of the syringe and defining a fluid passage therethrough, with one or barbs on the hub that frictionally and sealingly engage an interior of the nozzle in a manner minimizing void space associated with waste of deliverable material, and an applicator tip extending distally from the hub. The barb(s) may have varying diameters in order to enable the applicator to be engaged and utilized with syringes having different diameter nozzles. Further the fluid passage through the hub and applicator tip is dimensioned to minimize the volume of material that is retained within the applicator after use, thereby increasing the volume of material that can dispensed from the syringe for use in a procedure or procedures and minimize waste.

Described herein is a technique capable of properly attaching a nozzle to a reaction tube. According to one aspect thereof, there is provided a nozzle installation jig including: a lower plate configured to make contact with a process vessel in a vicinity of a lower end opening of the process vessel in which a nozzle is provided; a frame fixed to the lower plate and extending upward with respect to the lower plate; an upper plate fixed to the frame and provided with a sensor configured to detect a position of the nozzle in the process vessel; and a notification device configured to transmit a notification to an operator according to a detection result of the sensor.

Described herein is a technique capable of properly attaching a nozzle to a reaction tube. According to one aspect thereof, there is provided a nozzle installation jig including: a lower plate configured to make contact with a process vessel in a vicinity of a lower end opening of the process vessel in which a nozzle is provided; a frame fixed to the lower plate and extending upward with respect to the lower plate; an upper plate fixed to the frame and provided with a sensor configured to detect a position of the nozzle in the process vessel; and a notification device configured to transmit a notification to an operator according to a detection result of the sensor.

A shower head including a base body, a jet disc held on a shower jet discharge side of the base body and including at least one jet discharge opening, and a jet disc holding device for fixing the jet disc on a jet disc holding region of the base body. Illustratively, the jet disk holding device includes a plurality of plug connector pins and associated pin through-passage openings, across which a respective one of the plug connector pins is passed through, wherein the respective pin through-passage opening is provided on the jet disk holding region of the base body or on the jet disk, and wherein the plug connector pins and the pin through-passage openings are configured for latched retaining of the plug connector pins within the pin through-passage openings.

A pressure regulator for use in an elbow connector for use with a sprinkler assembly including a pressure responsive member, movably mounted in the elbow connector and movable from an open position allowing flow of water into the sprinkler assembly and a closed position where the bottom edge of the pressure responsive member blocks the flow of water into the sprinkler assembly. The pressure responsive member is biased in the open position and moves into the closed position when downstream water pressure exceeds a predetermined value.

A pressure regulator for use in an elbow connector for use with a sprinkler assembly including a pressure responsive member, movably mounted in the elbow connector and movable from an open position allowing flow of water into the sprinkler assembly and a closed position where the bottom edge of the pressure responsive member blocks the flow of water into the sprinkler assembly. The pressure responsive member is biased in the open position and moves into the closed position when downstream water pressure exceeds a predetermined value.

A spray nozzle for spraying material includes an outlet, a mixing section, an inlet for the material, and a buffer space for pressurized gas. The mixing section is in fluid communication with the outlet. The inlet is in fluid communication with the mixing section. The buffer space is in fluid communication with the mixing section via two or more separate gas supply channels. The inlet comprises a separating wall configured to divide a flow of material to be sprayed into two separate flow passages prior to entry into the mixing section.