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Eyewash and shower flow

Substance Flushing times
Sulphuric acid 15 minutes
Hydrochloric acid 15 minutes
Ammonium solution 15-30 minutes
Sodium hydroxide 15-30 minutes

Abundant flow in eye and face showers is necessary. The demand is generous rinsing with fresh, tempered or cold water in the whole face for a minimum of 15 minutes. This is however only during a transition period until healthcare professionals are at site. Some alkaline substances (high pH) require flushing up to four hours which is why continued rinsing is carried out when the injured person arrives at the hospital.

All models of safety showers have been designed for a minimum flow of approx. 76 litres/minute indoors or approx. 170 litres/minute outdoors. This is the necessary capacity to cover the whole body with plenty of water. Showers are available in different varieties for mounting on wall, in ceiling or as free standing. Pipes must therefore be chosen to give the correct flow.

Tempered water shall be used for eye washes and sometimes even for safety showers. The reason for this is that the injured person shall cope to remain in the water flow as long as possible. At cold temperatures the muscles contract which may cause difficulties to rinse efficiently.

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Installation steps

1. Correct location of a safety shower

2. Amount of water in a safety shower

3. Tempered water

4. Safety at pressure fall in the water supply

5. Reduced pressure

6. Adapt material in the shower to the right environment

7. Valve

Krusman safety tank shower

Emergency shower system incorporated with a insulated tank. In case of water supply stops, the tank guarantees a flow of tempered water for up to 15 min. Krusman Emergency Showers manufacture emergency tank showers fitted with a cooler to prevent extreme water temperatures in hot climates.

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