In this video we will see workers working together in a very narrow space for hot tapping. These workers were tasked with connection of the existing pipeline 400 mm to a new pipeline 225 mm - the works were done on working pipeline under pressure in Tychy (Poland).
This work requires high concentration, smooth coordination and absolute precision because every mistake in the implementation process can cause a large pressure water leak.
The equipment used included FOX FIITTINGS's electrofusion branch saddles with big size outlets, and drilling equipment.
Let's watch the workers perform hot hap procedures
A hot tap saddle or weld nozzle installed, valve installed, assembly is pressure tested and hot tap machine attached.
Valve opened, hot tap completed, coupon or cut portion retained by latches on pilot drill. Pressure is contained within the hot tapping machine.
Cutter and coupon retracted and valve closed. Fluid is drained and hot tapping machine is removed. The tapped valve is now ready for the contractor’s tie-in or IFT’s linestop/stopple equipment to be inserted.