RY-EA-EH2 Twin Nozzle Eyewash Spray Head Assembly with Yellow Flip Covers

RY-EA-EH2 Twin Nozzle Eyewash Spray Head Assembly with Yellow Flip Covers

Product Overview

The RY-EA-EH2 is a twin nozzle eyewash spray head assembly: a stainless steel U-tube carries two brass-free nozzles under yellow flip covers, and is fixed into the eyewash bowl through a threaded shank with a backnut and washer. The two nozzles are set to angle inward so their streams converge where a face would be, and each cover can be flipped open with one hand or with the forehead while the hands are busy. It is supplied as a spare part for eyewash bowls that have cracked covers, a blocked nozzle or a shank that no longer seals.

Where Compliance Is Actually Delivered

Everything upstream of this part — the tank, the valve, the pipe run — only has to get water to it. The eyewash requirement is met or lost here, at the two nozzles, and the failures are specific.

Two converging streams, not one jet. A compliant eyewash delivers a controlled flow to both eyes at once at a low velocity, so the casualty can hold their eyes open in it. A single hard jet, or two streams that miss the eyes, is not a flushing point in practice however well the station is piped. When a head is replaced, the aim has to be checked with the assembly installed in the bowl, at the height it will actually stand.

The covers are part of the device, not packaging. Yellow flip covers keep dust, grit and process debris out of the nozzles between uses, which is the reason a station that has stood for a year still gives clean water. Covers that have been removed "because they keep falling shut", or that are wired open, leave the nozzle open to the workshop — and the first user gets a faceful of dust. The correct fix is a new cover, not a missing one.

One side weak is usually a blocked nozzle. When a user reports that one side of the eyewash is feeble, the instinct is to blame pressure. In most cases it is debris or scale in that nozzle, or a nozzle that has been bent inward until the pattern collapses. Check the nozzle before touching the supply: unscrew it, look through it against a light, clear it, and refit it.

The shank seal is the quiet leak. The assembly is held by a backnut under the bowl and sealed with a washer. A washer that has hardened lets water track down the shank and drip under the bowl, which is often misread as a leaking bowl. A spare assembly usually fixes both problems at once.

Height and clearance are checked after fitting. The nozzle height above the floor and the distance from the wall are station requirements, not assembly requirements, so they must be re-verified once the new head is in place — a taller or shorter shank can move the nozzles out of the required band.

Key Features

• Stainless steel U-tube body, resistant to tepid water service and free of plated parts that rust.

• Two nozzles angled inward to produce converging streams at the face position.

• Yellow flip covers, openable with one hand or the forehead, keeping debris out between uses.

• Threaded shank with backnut and washer, fixing through the eyewash bowl from below.

• Individual nozzles replaceable, so one blocked or damaged nozzle does not condemn the assembly.

• Compact U-form that fits standard bowl cut-outs without fouling the bowl rim.

• Straight-through waterway with no exposed thread in the flow path, so scale has nothing to anchor on.

• Suitable as a direct replacement part for a worn head, keeping the existing bowl and pipework.

• Supplied as a spare, so a station can be returned to service in the time it takes to swap a head.

Technical Specifications

Fitting and Adjustment

1. Isolate the station supply at the line valve, lock it off, and drain the bowl before removing the old head.

2. Remove the old assembly, clean the bowl seat and check the cut-out for cracks or distortion before fitting the new one.

3. Fit the new assembly with a fresh washer, tighten the backnut from below by hand plus a part turn, and confirm the shank does not turn with the nozzles.

4. Restore the supply slowly and check for weeping at the shank and at both nozzles.

5. Open both covers, operate the station and confirm the two streams converge at the face position, with no single hard jet and no spray outside the bowl.

6. Re-check the nozzle height above the floor and the distance from the wall, and record the flow reading at the station.

Maintenance and Fault Finding

Weekly: operate the eyewash for at least three minutes, confirm both covers open and both streams converge, and check for leaking at the shank.

Monthly: lift each cover and inspect the nozzle mouth for dust or scale; wipe the covers and check the hinge tabs are intact.

Quarterly: unscrew the nozzles, clear them against a light, refit and re-aim; replace any cover that no longer stays open or no longer seats.

If one side runs weak: clear the nozzle first, then check the bowl strainer, then the supply. Replace the nozzle rather than bending the tube to compensate.

Annually: replace the shank washer, verify the flow against the commissioning figure, and replace the whole assembly if the tube is bent or the threads are worn.

Standards and Compliance

This assembly is a component of an emergency eyewash; the installed station must meet ANSI Z358.1-2014 in full — fifteen minutes of flushing with tepid water at 20–37 °C, hands-free activation, nozzles at the required height above the floor and clearance from the wall, unobstructed access within ten seconds of the hazard, and a controlled twin stream at a velocity the casualty can tolerate with the eyes held open. Fitting a new head does not by itself make a station compliant, and a head fitted at the wrong height or aimed at the wrong point will fail an inspection that a flow test alone would pass. Covers must be present and functional at every inspection; a station with missing covers is a finding, not a cosmetic issue.

Applications

Replacement of worn or damaged eyewash heads on bowl-type stations, refurbishment of existing stations where the bowl and pipework are sound, spare-part stock for maintenance teams, and repair of stations found with cracked covers, blocked nozzles or a leaking shank seal.

Ordering

State the model RY-EA-EH2, the shank thread size or the make and model of the bowl it is to fit, the number required, and whether spare nozzles or covers are to be included. Where the part is being bought to fix a specific fault, say whether the problem is a blocked nozzle, a leaking shank or a damaged cover, since the remedy differs. Confirm the nozzle height band required for your jurisdiction so the shank length can be checked before delivery.