Dry riser testing service
Norfolk Fire and Rescue Service water section are dedicated to ensuring that firefighters have a ready supply of water available to deal with any incident.
When dry riser facilities are provided for this purpose are in private ownership we are able to offer our specialist testing and maintenance expertise to ensure that the equipment is available for emergency use at if ever needed.
It is recommended by this fire service that dry rising fire mains should be checked every six months to ensure that all valves are fully serviceable and a wet pressure test should be carried out annually to ensure that there is no leakage in line with the procedure laid down in British Standard 5306-0:2011 Section 11:42.
For details of our charges for this service please contact the Water Officer on 0300 1231165
Annual wet pressure test
The test is designed to ensure that water can be passed through the system under pressure and a pressure gauge reading is recorded. Inability to sustain effective fire-fighting jets from the topmost or furthermost outlets, or any undue pressure loss in the rising main (after allowing for any height involved) is highlighted for investigation.
The test carried out by this fire service ensures that when two jets are at work from the topmost (or furthermost) outlet, a running pressure of 2.5 bars is still available in the system.
All inlets, outlets, landing wheel valves, and washers are checked to ensure they are in a satisfactory working condition and that the inlets and outlets are compatible with fire service equipment and readily accessible. Where necessary, washers and blank caps will be supplied and fitted at the time of the test at an additional charge.
Checks are also made to ensure that no fractures or leaks are apparent in the pipe work and that all valves not in use when the main is charged remain watertight.
The flow test as carried out by this Fire Service is not considered to be a hydraulic test of the piping which should have been carried out by the installer.
A flow test is more than a mere pressure test and will confirm that the installation is watertight, however it may not identify blockages. In addition, all valves will be worked, outlet-sealing washers will be inspected and the operation of lugs, non-return valves and air valves will be checked
Only a flow and pressure test can confirm that water will be delivered as expected when the riser is called upon in an emergency.
This is a dry visual inspection of the inlet and each outlet. All inlets, outlets, landing wheel valves, and washers are checked to ensure they are in a satisfactory working condition. Where necessary, washers and blank caps, straps etc will be supplied and fitted at the time of the test at an additional charge.