Version 1.7 (June 2017)
TSI Flowmeters Ltd.
11
4.3 STATIC PRESSURE MEASUREMENT
1) Attach Flowmaster to standpipe.
2) Attach ball valve to exhaust side of Flowmaster.
Ensure ball valve is partially open.
3) Crack open the hydrant slowly. All air will be
expelled from the standpipe when water begins to
drain from the ball valve. Close the ball valve.
5) When reading is taken, close hydrant fully.
4) Read static pressure (in bar).
6) Open the ball valve to exhaust pressure from the
meter and standpipe. Remove the blanking plug and
progress to flow test.
4.4 FLUShINg
1) Equipment required for flushing
2) Flowmaster connected to standpipe (through
hose length)
3) Adjust valve position to achieve desired flow rate
4) Record volume discharged for inclusion in
leakage figures
