KOGAS-Tech has the first-class hot tapping technology and experience in implementing various types of projects and KOGAS-Tech is extending diverse business in the domestic and foreign market.
What is hot tapping business?
Hot tapping business is a challenging and specialized technique business to perform pipe separation/shifting, valve replacement, etc. without stopping system operation and supply of a fluid such as gas, oil and steam by using plugging technique that blocks part of the pipe with Plugging Head equipped with sealing element and Hot Tapping technique for boring a hole in pipe or storing container in use after installing special sandwich valve and fitting.
- Fitting and Sandwich Valve installation on the pipe in use
- Tapping Machine installation and boring a hole after opening Sandwich Valve
- Plugging Machine installation and By-pass pipe connection
- Blocking after opening the Sandwich Valve
- Pipe shifting or replacement work after opening the By-pass pipe
- Finishing work(L.O.R Fitting)
Excavation → Retaining wall construction with H beam and wood → pipe coating removal → Special Fitting and Equalizing Fitting installation → Welding → Sandwich Valve installation → Hot Tapping M/C and Equalizing pipe installation → Gas inflow(Equalizing) into Hot Tapping M/C → Sandwich-Valve "Open" → Hot Tapping operations(Bore a hole in the pipe) → Hot Tapping M/C separation → Chip removal equipment installation → Pressure equalization → Sandwich-Valve "Open" → Chip removal operations → Chip removal equipment separation → Plugging M/C installation → By-Pass pipe connection after installing Plugging M/C → Pressure equalization in Plugging M/C → Sandwich-Valve "Open" → Gas block in existing pipe using Plugging M / C → Blocked gas emission in existing pipe → Pipe cutting → New pipe line Tie-In or equipment replacement → New pipe line Purge and step-by-step pressurization → Plugging Head removal and line normalization → By-Pass Pipe, Plugging M / C separation → Hot Tapping M/C installation on the Sandwich-valve → Pressure equalization → Sandwich-Valve "Open" → Special Plug placement → Hot tapping M / C separation, Sandwich-Valve separation → Upper special plug welding after installation → Non-destructive test (P.T) on the welding part → Blind Flange installation → Anticorrosion treatment → Backfilling.
Application Range
Item | Range |
---|---|
System pressure |
- Boring : 10Mpa(Max.) - Blocking : 7Mpa(Max.) |
Pipe standard |
- Boring : 1/2 ~ 64inch(50 ~ 1600A) - Blocking : 1/2 ~ 36inch(50 ~ 900A) |
Pipe material | all material |
Application Field
Item | Range |
---|---|
High-pressure gas | - Natural gas main and branch line |
City gas |
- City gas main and branch pipe line - A new establishment of storage tank incoming and outgoing pipe line |
Water supply |
- A wide area, general water supply and industrial water pipe line - A new establishment of storage tank incoming and outgoing pipe line |
District heating |
- District heating pipe line - A new establishment of storage tank incoming and outgoing pipe line |
Crude oil transportation |
-Various crude oil supply pipe line - A new establishment of storage tank incoming and outgoing pipe line |
etc | - Similar plant pipe line to those above |