Projects  /  igat-iv  
Project: Telecommunication Systems of Fourth National Gas Pipeline (IGAT-IV)
Location: Along the fourth Gas pipeline from Assaluyeh to Tehran
Client: NIGEDC (subsidiary of NIGC)
Contract Type: Review of Detail Engineering, Procurement, Construction and Commissioning
Started: 2005
Status: Completed

Project Summary

IGAT-IV is a 56 inches pipeline and carries 110 mcm/day gas from South Pars Gas Complex and the Parsian Refinery to consumers in the cities of Tehran, Isfahan, Shiraz, Kerman, Yazd, and Saveh. It has 5 branches and a total length of more than 1200 km.

Telecom Project of IGAT-IV pipeline was initiated in order to establish telecommunications along the pipeline, from Assaluyeh, to Tehran, in 58 stations including 36 Block Valves, 10 Compressor Stations, 5 Operation Yards and 7 Terminals and Central Stations. Four Central stations in Assaluyeh, Shiraz, Isfahan and Tehran will control all communications. When completed, this telecom network will be the sole Fiber Optic Communication Line between Tehran (as the main network management center) and Assaluyeh (as the main gas production complex in the south part of the country), and therefore will also provides traffic back up for three previous pipelines (first, second and third national Pipelines).

IGAT-IV was awarded to Pars Saman as a PC project. Still, due to some necessities, a professional team reviewed and modified the engineering designs. Subsequently procurement and supply of all equipment was carried out successfully. In 2008, installation of equipment began and is still continuing.

After successful Pre-commissioning in all sites, Commissioning of the whole Pipeline Telecom System will be done and subsequently will be handed over to the Client.



Scope of work

The following systems and equipment are included in this project:
  • Fiber Optic Transmission system from Assaluyeh to Tehran
  • Access PDH Multiplexers
  • Telecom Network Management System in central control stations
  • Providing Telecom Media for Control and SCADA systems, Leak Detection Systems and also Pipeline Safety systems
  • Data Network and providing a wide area network connecting all local area networks in central stations and Compressor stations
  • Video Conferencing among central stations and Compressor stations
  • Hotline Telephone and Emergency call System
  • VHF Radio Coverage, required UHF links and Telecommunications Towers
  • Grounding and Lightning protection of towers and buildings
  • Solar Power systems
  • Power Supplies and Back up equipment

Also, construction of Telecom building in some valve stations from Assaluyeh to Isfahan and Cable laying in some parts of pipeline (from Assaluyeh to Shoorab) are in the scope of work of Pars Saman. 



Scope of Supply

U-NODE SDH Multiplexer STM-4 NEC (Japan) 
PCM, FMX2S NokiaSiemens (Germany-Finland)
Hotline telecom and PABX, Hipath 3800 Siemens (Germany)
Synchronization system Oscilloquartz (Switzerland)
VHF/UHF Radio communication system TAIT (Newzeland)
SOLAR panels  Tenesol (France)
Battery Platin Iran CO. (Iran)
UPS PSP (Iran)
DC/AC PDB Ashtian Tablo (Iran)
Telecommunication Tower Gord Electric (Iran)
Test Equipment including SDH/PDH Analyzer, Radio Telecom Test Set etc




Main Features

  • The first and the largest telecommunication project along Gas pipelines in Iran with Fiber Optic transmission backbone to be carried out by an Iranian contractor
  • The sole Fiber Optic Telecom Line between Tehran as the main network management center and Assaluyeh as the main gas production complex in the south part of the country
  • Back up for traffic lines of first, second and third national pipelines
  • Integration of different telecommunications and Control services including Fiber Optic transmission Systems, VHF/UHF radio and Hotline telephones, Solar systems…
  • Project management along 1200 Km pipeline with 58 working stations which are distributed geographically
  • Cooperation with various international and domestic manufacturers and suppliers