DRY RISERS
WHAT IS A DRY RISER
A dry riser can be defined as; a vertical water supply pipe installed in a building for fire-fighting purposes, fitted with inlet connections at fire service access level and landing valves at specified points, which is normally dry but is capable of being charged with water usually by pumping from fire and resuce service appliances.
The provision of fire mains is an essential element of the fire protection systems in large buildings where there is difficulty in providing water supplies for fire fighting purposes. It is essential that these systems are regulary maintained to ensure they will work as and when required.
Dry risers are installed where there are no floors higher than 50 meters. Where there are floors higher than 50meters only wet risers should be installed due to the pressure required to provide water supplies to the landing valves sited on upper floors, and also to ensure that water is immediately available for fire-fighting.
TO ENSURE CONFORMITY
WITH THE REQUIREMENTS OF
THE REGULATORY REFORM
(FIRE SAFETY) ORDER 2005
It recommends that the service is
carried out by companies holding
third-party accreditation. Be confident
that all our engineers are fully trained
and hold IFEDA certification.
AEC CAN PROVIDE FULL SERVICE AND MAINTENANCE PACKAGE FOR YOUR DRY RISERS IN COMPLIANCE WITH BS 9990:2015
6 MONTHLY DRY TESTING - Every 6 months, inlets,landing valves,Drain Valves,Door Hinges, and any locking devices fitted to inlet and Landing Valve Boxes should be inspected.
Valves,Spindles,Glands and Washers should be closely inspected to ensure that they are in a satisfactory condition.
ANNUAL TESTING - Wet Tests, also referred to as a (static pressure test) which is the complete charging of the system with water, should be carried out annually in order to ensure that the system is working correctly and that there are no leaks.
