PIPELINE INTERVENTION

HOT TAPPING

  • Hot Tapping or Under Pressure drilling is the method of making a branch connection to existing pipelines or vessels or any other process equipment while the existing system is under pressure.
  • This method employs a Tapping Machine and a full bore valve and either a nozzle or a full encirclement fitting (Split Tee) welded to the existing pressurized system.
  • The Tapping (drilling) machine, generally consists of a telescoping boring bar mechanically driven by our specially designed gear box which advances a cutting tool.
  • PTS can Hot tap from ½” to 96” sizes; from vacuum to 1480 psi pressure and up to 700 deg. F temperatures, flange ratings are from 150 Lbs. through 900 Lbs. ANSI ratings.

Line stopling

Line Stopping is a means of sectional stopping of flow and providing an optional bypass (in case the line medium needs to be supplied downstream) while repairs or alteration works are in progress. Line Stopping can be performed on various piping materials and for a variety of media such as gas, oil, water, steam, process piping & sewage etc.

Why use Line stopling?
  • Service to consumers of process industries and sensitive services are maintained.
  • Contamination and / or loss of fluid or gas does not occur.
  • Toxic or harmful product is not released.
  • Fire protection not affected.
  • No time wasted draining the systems.
  • Personnel are used efficiently on effecting repair.
  • Eliminates need for bulk transfer and storage of harmful fluids.
  • We can provide Stopping services on DN80 to DN1500 lines at 150 bar pressure on multiple mediums.

INLINE PIPE FREEZING

Cryogenic Pipe Freezing is used for temporary isolation of pipes. This is considered the safest, most economical and effective method for allowing general pipe work modifications. The Pipeline materials that can be subjected to cryogenic temperatures include CS, CI, SS, aluminium alloys, etc. Pipeline fluids that have been crystallized to form an ice plug include: Fresh water, Glycol solutions, Sea water, Effluents / Sewage, Produced water, Sludge’s, contaminated water, Crude oil, Bunker C oils, Fuel oils, Methanol, Lubrication oils, various chemical products. The important point about Pipe Freezing is that the flow should be kept static during the process.

pipe-freezing

VALVE INSERTION

Pipe valve insertion products insert valves into operating water mains without loss of service or shut down. QuikValve and InsertaValve.