Drench Hose Eyewash Unit

What is the Drench Hose Eyewash Unit?

A drench hose eyewash unit is a flexible hose with an aerated head that can be directed at the eyes, face or body. It reaches areas that fixed heads cannot serve easily.

Overview

The unit consists of a hose, usually 1.5–3 m long, with a dual-purpose aerated head, connected to a stay-open valve so the flow continues when the handle is released. It can be aimed at the eyes, face or a specific body area, which suits localised risks such as a transfer point, a sampling valve or a small spill area. Flow is 1.5–2 L/min for eyewash use and higher for body rinsing, and the water should be tepid. The hose must be mounted so it is easy to reach but protected from contamination, and it drains completely to avoid stagnant water. Drench hoses complement fixed stations; they do not replace a plumbed eyewash where eye exposure is a credible hazard and users may not be able to hold the hose.

How does it work?

An eyewash station delivers two soft, aerated streams of tepid water that bathe the eyes so chemicals are diluted and rinsed away without driving them further into the eye. Water flows at about 1.5–2 L/min per eye at low pressure, and the heads are positioned so the user holds the eyelids open in the flow. Stay-open valves allow both hands to be used, and most units provide at least 15 minutes of flushing. Some stations add a face and body spray, and drench hoses reach areas that fixed heads cannot. Units are placed within 10 seconds of hazards, on the same level, with a clear approach and clear signage. Weekly activation flushes stagnant water, and annual inspection verifies flow, temperature, height and spray pattern against ANSI/ISEA Z358.1 or EN 15154-2.

What are the key features?

• Flexible hose 1.5–3 m with aerated head
• Stay-open valve for continuous flow
• Aimed at eyes, face or body
• Suits localised hazards
• Drains fully to avoid stagnant water
• Complements fixed stations

What are the technical specifications?

A typical drench hose eyewash unit configuration offers type of Drench hose eyewash, hose length of 1.5–3 m, eyewash flow of 1.5–2 L/min, body rinse flow of Up to 40 L/min, water temperature of 16–38 °C tepid and valve type of Stay-open on release. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Drench Hose Eyewash Unit is used in localised transfer points, sampling valves, small spill areas and bench-side rinsing. Across the wider Eyewash Stations class, laboratories also deploy it for chemical and reagent handling, histology and staining areas and battery and electrolyte work.

Which standards and certifications apply?

Relevant standards and methods include ANSI/ISEA Z358.1 (emergency eyewash and shower equipment), EN 15154-2 (eyewash for laboratories), EN 15154-1 (body showers for laboratories), GB/T 38144 (emergency shower and eyewash), ISO 3864 (safety signage) and DIN 12926 (laboratory eyewash). Certification candidates for this model are CE and ISO 9001 manufacturing; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Perform a hazard assessment to confirm each station is reachable within 10 seconds, on the same level, and not blocked by equipment, doors or stored items. Activate every unit weekly to flush the line and confirm the valve stays open, and inspect annually for flow, temperature, spray pattern and head height. Maintain tepid water in the range of about 16–38 °C, since cold water discourages the required 15 minutes of flushing. Clean the heads and check for biofilm growth in stagnant lines, especially where use is rare. Provide clear signage, train staff on flushing technique including keeping the eyes open, and record all checks and maintenance for audit.

How do I select the right Drench Hose Eyewash Unit?

Choose a drench hose for localised risk where a fixed eyewash is not practical, and keep a plumbed station within 10 seconds for possible eye exposure. RFQ: hazard location, hose length, flow, valve and mounting options.

How does it compare with other Eyewash Stations variants?

Choose wall-mounted units for general laboratories where a wall is available near the hazard, and pedestal units where there is no suitable wall or the floor space is free. Deck-mounted eyewashes fit onto a sink and save space but must still be within 10 seconds of the hazard. Drench hoses are used where the risk is localised, such as a specific transfer point, but they need a user who can hold the hose. Portable gravity-fed units suit field work, temporary installations or locations without a plumbed supply, though they have limited capacity. Confirm flow, tepid temperature, spray height and coverage, and that the approach is unobstructed. Verify that the unit suits the chemicals used, and provide signage and training.