Pratt dust cover cap for triple eye and face wash nozzle assembly

The Pratt 531113 is a spare part, not a whole station. It is the dust cover cap that sits over a triple head eye and face wash nozzle assembly, and its job is to keep grime, dust and airborne particles out of the outlets between uses so the wash is clean and ready the moment someone needs it.

It is a Pratt part made from AES plastic, supplied as a pack of one (Pk of 1). The "eye and face wash" wording matters here. It tells you the cap is built for a triple head outlet that covers eyes and face together, rather than a single eye-only nozzle. Done Right Safety lists this part as meeting Australian Standard AS4775, which is the relevant standard for emergency eyewash and shower equipment.

If you already run Pratt triple nozzle eye and face wash gear and a cap has cracked, gone missing or perished, this is the matching replacement. You can view the part on Done Right Safety to confirm it suits your assembly.

Check it matches your nozzle assembly

The cap is made for a triple head eye and face wash nozzle, so the first thing to confirm is that your unit actually uses a triple head outlet rather than a single eye-only nozzle. The "eye and face wash" wording on this part is the giveaway: it pairs with the wider three-outlet head. If you are not certain which head your Pratt unit has, check the nozzle on your station against the product page before ordering.

Fitting and a quick function check

Remove the old or damaged cap and seat the new one over the triple head so it covers all the outlets. Once it is fitted, give the unit a short test activation. Check that the cover behaves the way the old one did when the water turns on, that the nozzles run cleanly, and that the cap sits back over the outlets once you shut the flow off. If you are unsure how the cover is meant to seat on your particular head, confirm the detail on the product page or datasheet before you rely on it.

Inspection and replacement

A dust cover is a wear item. Plastic caps can crack, perish or warp over time, and a cap that no longer seats properly lets dust and particles reach the outlets, which is exactly what it is there to stop. Build the cap into your routine eyewash checks: if it is brittle, split or not sitting flush, swap it out. Keeping a spare on the shelf means a damaged cap does not pull a wash station out of service while you wait on parts. The relevant standard for the wash equipment itself is AS4775, so any servicing should keep the whole unit compliant with that standard.

Worth knowing before the table: this product is a spare cap, while the items below are complete eye and face wash units. They are all the same type (emergency shower and eyewash) and all Pratt, so the comparison is useful for seeing where the cap belongs, but it is not a like-for-like swap. You buy the cap to service one of these units, not instead of one.

The cap (531113) is the right pick when you already own one of the fixed triple nozzle units like the SE607 or SE603 and just need to restore the dust cover on the head. Those two units both use the same six-outlet eye and face wash with a self closing cover, so the difference between them is operation: SE607 adds a foot treadle, while SE603 is hand operated only.

The SE5000 is a different situation. It is a self contained portable eyewash for sites with no plumbed water, and it carries both AS4775 and ANSI Z358.1 on its listing. If your problem is a missing dust cover on a plumbed triple head, the cap is your answer. If your problem is no wash station at all, look at one of the full units instead.

The 531113 cap is a small, sensible spare part doing one job: keeping a triple head eye and face wash outlet covered and clean between uses. For anyone running Pratt eye and face wash equipment, holding a spare cap is cheap insurance against a cracked or missing cover taking a station offline.

What is confirmed on the listing: it is a Pratt part, made from AES plastic, supplied as a pack of one, suitable for triple head nozzles, and listed as meeting AS4775. Beyond that, the listing keeps it brief, which fits a part this simple.

What you should verify on the product page or datasheet: the exact nozzle assembly it fits, since "triple head" covers more than one Pratt configuration. Before you order, match it against the head on your own unit, or confirm the fit with Done Right Safety so the replacement seats correctly first time.