Wet Riser Servicing

Wet riser servicing in Lincoln

Rely on the team of experts at Infiniti Fire Protection to carry out visual inspections and hydraulic pressure tests on the wet risers installed at your property. We cater to private and commercial customers across the UK.
Contact us

Efficient wet rising systems

Wet rising mains are fitted in tall buildings due to the excessive pressures required to pump water to high levels. A wet riser is a supply system intended to distribute water to multiple levels or compartments of a building; it is a component of the fire fighting systems.
They are advantageous to the fire service in two respects. Firstly they provide a fixed distribution system within the building that requires no fire service resources or equipment. Secondly it is designed as part of, and to maintain, the compartmentation of the building.
The designers or architects may opt for the superior protection of wet risers. Wet risers are a UK building regulation requirement in buildings over 50M ( over 60M up until 2006).
Dry riser servicing

Maintaining your wet rising systems

Wet rising mains consist of vertical pipes similar to the dry rising main system with landing valves at each floor except the ground. The pipe system is connected to a permanent water supply, normally a tank fed from the town's mains. Duplicate automatic pumps, one duty and one standby supply water to the pipe system.

The tanks are fitted with an automatic warning system to indicate low water level.

At protracted incidents the wet rising main tank may need to be augmented and this can be achieved using conventional fire appliances and additional water supplies (hydrant, open water etc).

Wet rising mains are designed to supply 1500 litres per minute for 45 minutes as a minimum.

Due to the height of the building and the pressures used, water pressure reduction valves are fitted to the outlets at each floor. Buildings constructed prior to 2006 will have outlet pressures of 4 to 5 Bars. Changes to BS 9990 in 2006 now recommend an outlet pressure of 8 Bars, this recommendation does not affect installations installed before this date.

For more information about wet riser servicing and maintenance, contact us on:

Share by: