FIRE PROTECTION SYSTEMS

Dry & Wet Riser System

Dry Riser System
Dry risers, typically installed in buildings over 18m tall, are a series of pipes that allow the delivery of large amounts of water to various upper floors of a building in case the need to combat fire arises. They are installed into suitable positions, such as in a staircase, and feature a Breeching Inlet at ground level which the fire brigade can then connect to main water supplies and outlets on each of the upper floors.

Wet Riser System
Working along the same principles as dry riser systems;
A wet riser is a pipe kept permanently charged with water which is then immediately available for use on any floor at which a fire hydrant globe valve (also known as a landing valve) is provided. Wet risers are necessary for buildings which are too high (above 60m) for brigade pumps to supply the necessary water pressure via a dry riser. If the mains pressure is higher than maximum brigade operating pressure it is necessary to use pressure regulating landing valves.

Difference between Dry Riser and Wet Riser
Dry Riser: A system consisting of valves and pipe work enabling the Fire Service to pump water on to upper floors of a building.

Wet Riser: A system consisting of valves and pipe work which are kept permanently charged with water.

If your fire risk assessment concludes that you may need the intervention of the Fire Service to fight a fire, you must ensure that your riser systems are working properly. Sixmo Technologies can provide you with professional help and assistance, ensuring you have the correct system for your application and are complying with all necessary standards and legislation. So please contact us today for your state-of-the-art solutions.