RYFHS-FR12 All-Stainless Explosion-Proof Heat-Traced Shower and Eyewash with Ex Control Box, Rain Hood and Digital Temperature Display

Product Overview

The RYFHS-FR12 is a floor-mounted combination emergency drench shower and eyewash built entirely in stainless steel for corrosive, wash-down or coastal sites, with electric heat tracing for frost protection and an explosion-proof control box for classified areas. The column, the shower arm, the eyewash bowl and the base plate are all stainless steel 304, with yellow and black hazard striping bonded to the column and to the eyewash bracket so the station reads as emergency equipment from a distance. The control box is a stainless steel flameproof enclosure fitted with a red rain hood, a rotary isolator, red and green push buttons and a digital temperature display showing the trace temperature at a glance. Two cable glands at the underside take the supply and the trace tail; the cables drop down the column in a loop clear of the bowl.

What Each Feature Is For — and What It Is Not

The rain hood is the feature most often misread. It shields the box face from direct rain and from wash-down spray coming from above, which reduces standing water on the lid gasket and keeps the display readable in bad weather. It does not raise the enclosure's IP rating, and it does not make the box safe to open while energised — the warning label on the enclosure door is the governing instruction. The digital display reads the trace circuit temperature; it is an indication of the heating circuit, not a readout of the water temperature leaving the shower head. The hazard striping is a visibility marking on the column and bracket; it carries no structural or certification meaning. And stainless steel 304 resists most process atmospheres but is not the right grade for continuous chloride exposure, where 316 should be specified.

Key Features

• All-stainless steel 304 construction: column, shower arm, eyewash bowl, brackets and base plate, with no painted carbon steel in the structure.

• Yellow and black hazard striping on the column and eyewash bracket for identification at distance and in low light.

• Stainless steel explosion-proof control box with rotary isolator, red and green push buttons and a digital temperature display.

• Red rain hood over the enclosure face to shed direct rain and wash-down spray and keep the display legible.

• Two cable glands at the underside of the box, one for the supply and one for the trace tail, each with a drip loop below the enclosure.

• Self-regulating trace cable along the column, across the shower arm and behind the bowl supply, so the whole water path is protected.

• Stainless steel 304 umbrella shower head and twin-nozzle eyewash bowl with flip covers, matched to ANSI Z358.1 flow figures.

• Stainless pull rod with triangular handle for hands-free shower activation; push plate for the eyewash.

• Adjustable capillary thermostat with a 5–30 °C set point range, factory set to 10 °C.

Technical Specifications

Installation and Commissioning

1. Anchor the base plate to a level concrete pad through the four holes; the pad must carry the column plus the reaction of the shower stream.

2. Connect the 1 inch inlet and the eyewash waste outlet, then flush the line for several minutes with the strainer removed before the unit is put into service.

3. Land the supply and the trace tail in the two glands, form a drip loop below the box, and confirm the earth stud is connected before closing the lid.

4. Set the thermostat to 10 °C, energise the circuit and confirm the digital display reads a rising temperature and that the buttons and isolator operate freely.

5. Open the shower and the eyewash in turn and check that both stay open without being held, and that the bowl delivers a steady twin stream.

6. Record the supply voltage, thermostat setting, trace resistance and commissioning date in the maintenance file, and photograph the Ex nameplate for the site dossier.

Operation and Maintenance

Weekly: operate the shower and the eyewash for at least three minutes, confirm the display shows a heating temperature, and check that the bowl drains freely.

Monthly: clean the rain hood and the display window, check the glands for chafing or water tracking, and confirm the isolator turns and locks in both positions.

Quarterly: isolate the circuit, open the enclosure and check terminal torque, gasket condition and any condensation inside the box; clean the eyewash nozzles and the shower head face.

Annually: verify the thermostat against a reference thermometer, megger the trace circuit, inspect the enclosure for corrosion at the gland threads, and replace any cable with a damaged jacket.

Standards and Compliance

The shower head and eyewash are designed to ANSI Z358.1-2014 figures: 15 minutes of flushing with tepid water at 20–37 °C, hands-free activation, and a location within ten seconds of the hazard. Heat tracing protects the pipe from freezing; it does not deliver tepid water, so the supply side must still provide flushing water in the required temperature band. The explosion-proof enclosure, the trace circuit and the glands must be selected for the actual gas group and temperature class of the zone, and the Ex marking on the supplied nameplate must be checked against the area classification drawing before energising. Opening an explosion-proof enclosure while the circuit is live is prohibited; the warning label on the door states this and must remain legible.

Applications

Chemical plants, refineries, tank farms, offshore and coastal facilities, solvent handling areas and any classified outdoor location where a painted carbon steel column would corrode, or where wash-down and salt spray are routine. The stainless construction and hazard striping also suit pharma and food-adjacent sites that require washable emergency equipment.

Ordering

State the model RYFHS-FR12, the zone classification and required gas group and temperature class, the supply voltage and phase, the trace length, and whether stainless steel 316 is required for chloride exposure. The photograph shows the standard 304 column with hazard striping, the stainless Ex box with rain hood and a digital display; the display range, button configuration and hood colour can be varied on request. The Ex rating of the enclosure must be confirmed in writing against the site's area classification before the order is released — it must not be inferred from the photograph.