Product Overview

Plant water pressure is rarely what the drawing says. On a high-pressure site a fixed eyewash can hit the face harder than the standard allows and splash out of the bowl; on a long branch line at the end of the network it can fall short of the minimum. This station puts a flow regulator on the eyewash branch so the flush can be trimmed to the required rate at commissioning and re-trimmed if the network changes.

The eyewash itself is twin capped nozzles in an open basin, started by a push plate that latches open, leaving both hands free to hold the eyelids apart. The overhead deluge shower runs on a yellow triangular pull handle with a stay-open valve, and the whole column is 304 stainless on a bolted floor flange with a single supply.

Adjustable Flow on the Eyewash Branch

• Trim to the standard on site – the regulator is set at commissioning so the eyewash delivers the required rate rather than whatever the network happens to give.

• No splash, no sting – on high-pressure sites the excess is taken out before the nozzles, so the stream stays inside the bowl and stays comfortable enough for a 15-minute flush.

• Compensates for long runs – stations at the end of a branch line can be brought up to rate without re-piping the network.

• Re-trimmable later – if the plant adds draw-off points or changes pressure, the setting is adjusted at the station, not by replacing the unit.

• Independent of the shower – the shower keeps its full flow; only the eyewash branch is regulated, so body coverage is not compromised to fix an eye-flow problem.

Twin Nozzles, Open Basin

• A stream for each eye – both eyes flushed at once without steering a single head side to side.

• Individual caps – dust or scale shows up nozzle by nozzle rather than being hidden under a common cover.

• Balanced after regulation – once the branch flow is set, the two nozzles are trimmed against each other so neither eye gets more than the other.

Key Features

• Flow regulator on the eyewash branch – set at commissioning, adjustable later without dismantling the station.

• Twin capped nozzles – two fixed-angle streams in an open stainless basin.

• Push plate control – latched open on press, closed by pushing the plate back.

• Overhead deluge shower – large bowl-shaped head, yellow triangular pull handle, stay-open valve.

• Yellow PUSH sign – identifies the eyewash control at the basin.

• Single inlet – one 1-1/4 inch supply, one isolation point.

• 304 stainless steel – column, basin and shower arm in polished stainless.

• Bolted floor flange – fixed to a level floor; no platform or pit.

Technical Specifications

Operation

1. Reach the station within 10 seconds and stand at the basin.

2. Press the push plate; the valve latches open and both nozzles start.

3. Hold the eyelids open with thumbs and forefingers and roll the eyes so the flow reaches under each lid.

4. For body contamination, pull the yellow triangular handle; the shower valve stays open until pushed back.

5. Flush for at least 15 minutes and seek medical attention; push the plate back and close the shower valve afterwards.

Installation and Commissioning

• Position on a level, load-bearing floor on the same level as the hazard, within 10 seconds' travel, with clear standing space at the basin.

• Anchor through the floor flange and check the column is plumb.

• Connect the single supply, flush the line before connection, then pressure test at 0.2 – 0.4 MPa.

• Open the eyewash and set the regulator so the measured flow matches the required rate for the site; record the setting.

• Trim the two nozzles against each other until the streams are even and stay inside the basin with no splash over the rim.

• Operate the push plate and confirm the valve latches open and closes fully; confirm the shower stays open on release and still delivers full flow.

• Fix the PUSH sign, record both flow rates and the regulator setting, and date the commissioning record.

Maintenance

• Weekly: press the plate and confirm the eyewash starts, latches and stops; check both caps for dust.

• Monthly: clean both nozzles and the shower head face; check the regulator setting has not drifted and the valve does not drip.

• Quarterly: inspect the column, flange bolts and inlet joint for leaks or corrosion; confirm the PUSH sign is legible.

• Annually: re-measure eyewash and shower flow, re-trim if the network has changed, replace worn seals or caps, and re-tag the unit.

Standards and Compliance

The station is designed to the performance requirements of ANSI Z358.1-2014 and EN 15154: hands-free eyewash activation, a stay-open shower valve, a controlled low-pressure eyewash flush and full-body shower coverage. Flow must be verified at commissioning and at the annual inspection; a regulator set once and never checked is the usual reason a station drifts out of specification. Installation on the same level as the hazard, within 10 seconds' travel, with heads at the heights set by the standard, must be verified at commissioning.

Applications

Site networks with fluctuating or high pressure, stations at the end of long branch lines, multi-storey plants, chemical and pharmaceutical facilities, plating lines and laboratories where the eyewash flow has to be held to a specification rather than accepted as found.

Ordering

Order by model RYFHS035. Please state the supply pressure at the station, the required eyewash flow rate, floor type, whether a thermostatic mixing valve is required, and the required basin height. Fixed-flow and foot-pedal versions of the same column are available where on-site regulation is not needed.