RYFHS-FR11 Heat-Traced Shower and Eyewash with Integral Stainless Steel Switch Enclosure and Indicator Lamp

Product Overview

The RYFHS-FR11 is a floor-mounted combination emergency drench shower and eyewash station for unheated sites where the supply line must be kept above freezing. The column, the shower head, the eyewash bowl and the trace cable are the same proven assembly used across our freeze-resistant range. What sets this model apart is the electrical arrangement: a single stainless steel enclosure mounted on the column carries the terminal block, the rotary isolating switch and a red indicator lamp, with the trace cable entering through one flexible conduit gland at the bottom of the box. Where the FR10 splits termination and switching into two separate boxes at two heights, this model consolidates both functions into one housing at working height. Installers who prefer a single point of electrical termination, and maintenance teams who prefer one place to look when a trace circuit trips, usually choose this layout.

Why One Enclosure Instead of Two

Every enclosure on an outdoor column is a potential water entry point, and every cable gland is a potential pull-out point. Consolidating the terminal block and the switch into one housing removes one gland, one cable run between boxes and one set of mounting holes from the column. It also shortens commissioning: the electrician lands the supply, the trace tail and the earth in one place, checks the indicator lamp, and is finished. The trade-off is that the box has to be sized to hold both the terminals and the switch gear, so it is larger and heavier than a switch-only housing, and the whole assembly sits at a single height rather than being split between the arm and the mid-column. Reacting to a fault also means opening one box that contains live terminations, not a small isolator that can be switched off and left closed.

Key Features

• Single stainless steel enclosure combining the terminal block, rotary isolating switch and red indicator lamp, mounted on the column at standing working height.

• Red lamp gives a visible confirmation at a glance that the trace circuit is energised, without opening the enclosure or walking to the panel.

• Rotary switch with a lockable handle allows the trace to be isolated locally before any maintenance on the column or the shower head.

• One flexible conduit gland at the underside of the box carries the trace tail and supply; the conduit routes down the column and is clamped clear of the eyewash bowl.

• Self-regulating trace cable runs the full height of the column, across the shower arm and behind the eyewash bowl, so no section of the water path is left unprotected.

• Stainless steel 304 umbrella shower head and twin-nozzle eyewash bowl with flip covers, both matched to ANSI Z358.1 flow figures at 0.2–0.4 MPa.

• Stainless pull rod with triangular handle for hands-free shower activation; the eyewash is started by a push plate that stays open once pressed.

• Green powder-coated column for high visibility against concrete and steelwork, with a stainless steel base plate drilled for four anchors.

• All wetted parts stainless steel or brass; no galvanised components in the water path.

Technical Specifications

Installation and Commissioning

1. Set the base plate on a level concrete pad and anchor through the four holes; the pad must be able to 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, the trace tail and the earth inside the integral enclosure, and close the gland so the conduit hangs with a drip loop below the box.

4. Set the thermostat to 10 °C, energise the circuit and confirm the red indicator lamp lights; leave the circuit energised for at least one hour before the first cold-weather test.

5. Open the shower and the eyewash in turn and check that both hold their activation without being held, and that flow at the bowl is a steady twin stream rather than a single jet.

6. Record the supply voltage, the thermostat setting and the date of commissioning inside the enclosure door for the maintenance file.

Operation and Maintenance

Weekly: operate the shower and the eyewash for at least three minutes, confirm the indicator lamp is lit, and check that the bowl drains freely.

Monthly: inspect the flexible conduit and gland for chafing or water tracking, and confirm the rotary switch turns freely and locks in both positions.

Quarterly: open the enclosure with the circuit isolated, check terminal torque and look for condensation or corrosion on the terminals; clean the eyewash nozzles and the shower head face.

Annually: verify the thermostat against a reference thermometer, megger the trace circuit, and replace any trace cable section showing a damaged outer jacket.

Standards and Compliance

The hydraulic performance of the shower head and eyewash is designed to ANSI Z358.1-2014 figures — 15 minutes of flushing at 20 °C to 37 °C tepid water, hands-free activation, and a location reachable within ten seconds of the hazard. Compliance of the finished installation depends on the supply being able to deliver 0.2–0.4 MPa at the required flow and on tepid water being provided: heat tracing protects the pipe from freezing, it does not warm the flushing water to tepid temperature. The electrical enclosure, the trace circuit and the switch must be selected and installed to suit the hazardous area classification of the site, and the Ex marking on the supplied equipment must be checked against the zone drawing before energising.

Applications

Tank farms, loading racks, pipeline pigging areas, chemical storage yards, water treatment plants and outdoor process units in cold climates, where the station is exposed to frost but the electrical area classification allows a single stainless steel enclosure at column height. It suits sites that want one electrical termination point per station and a local indication that the trace is live.

Ordering

State the model RYFHS-FR11, the supply voltage and phase, the required trace length, whether the enclosure must carry an Ex rating for the zone, and the inlet and waste connection sizes if they differ from the standard. The photograph shows the standard green column with a stainless enclosure; the number and position of glands, the lamp colour and the switch type can be varied on request. Confirm the area classification before ordering — the enclosure shown in the photograph must not be assumed to carry an explosion-proof rating.