Large Hot Tap

Setting up the Hot Tap Machine at the service center

6" x 6" - Special 3-Way Obstruction Tee

Used at U.C. San Francisco Medical Center

to complete relocation of fire line & hydrant

Side angle view - All 304 Stainless Steel

Threaded for completion plug so

temporary hot tap valve can be removed

Mike holding completion plug

Side view completion plug (see o-ring)

Cleaning 7.20" OD Ductile fire line

Stainless Steel bolts for obstruction tee with anti-seize applied.

Bolts laid out to keep clean so dirt and sand won't gall the units.

Obstruction Tee ready for installation

Top half of saddle setting on the pipe with bottom half ready to bolt on.

Lower duct bank and upper duct bank

Connecting pipe was pushed between

duct banks so fitting could be aligned.

Connecting to pipe

AWWA "RSW" Resilient Wedge gate valve

Hydro tested machine. Tested to 180psi.

Actual pressure in system 165psi

Valve 6 feet from hot tap connection

Temporary 6" hot tap valve to be removed

from line when the tap is complete.

Hot Tap machine cutter and pilot drill

with coupon retention "catch" wires.

Completion plug setter

Hot Tap machine - Long stroke unit.

Using hydraulics to run the Hot Tap machine.

Live Hot Tap is complete.

Setting plug into ID of obstruction

tee flange so valve can be removed.

Last step will be to install blind flange onto obstruction tee.

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Job Complete!