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REFERENCES
Тhe company has been issued references by:

1. TPP 2 – replacement of sections of Air heater
2. TPP 2 – repair works of boiler equipment
3. Energoremont – Galabovo JSC
4. Brikel company
5. Dimitrovgrad TPP 3,
6. School, town of Maglizh
7. Horse farm in Razgrad
8. High military school, Shumen
9. Company “Nesi”, Sheinovo
10. Company “Totema”
11. TPP “Zaharni Zavodi”, Gorna Oriahovitsa
12. Cumerio Med JSC, town of Pirdop
13. Sviloza EAD – Svishtov, Bulgaria
14. ALSTOM Bulgaria EOOD

Companies you can contact for additional information about the quality of our work:

1. TPP 2, Radnevo
2. TPP 3, Radnevo
3. Energoremont – Galabovo
4. Brikel company
5. TPP 3, Dimitrovgrad
6. School for children with hearing problems, Maglish
7. Horst bases in Razgrad
8. High military school, Shumen
9. Company “Nesi”, Sheinovo
10. Company “Totema”
11. TPP “Zaharni Zavodi”, Gorna Oriahovitsa
12. Cumerio Med JSC, Pirdop
13. “Sviloza” EAD, Svishtov


Since the beginning of its existence “Petko Petkov – 24” EOOD has finished over 110 repairs. Underneath you can find detailed information by years.

  • 1993
    • Replacement of SH4 of Boiler 3 in TPP 3
  • 1994
    • Replacement and renewal of coils for ECO in factory conditions of Boiler 5 in TPP 2
  • 1995
    • Repair of oil tanks in TPP 3
  • 1996
    • Replacement of vertical sections of air heater of boiler 7, TPP 2
    • Repair of combustion chamber of Boiler 9, TPP 2
    • Repair of PF plant, ESP, ID fan – old and new department of TPP 2
  • 1997
    • Erection and mounting in company “Tekstilni vlakna”, Chirpan
    • Replacement of ECO of Boiler 10 in TPP 2
    • Preparing, repairing and replacement of heating surfaces, pipelines and valves in TPP 2
  • 1998
    • Repair of SH5, RH1 and RH2 in TPP 3
    • Preparing, repairing and replacement of heating surfaces, pipelines and valves in TPP 2
    • Basic repair of FD, ID and ESP of Boiler 1 in TPP 2
    • Medium repair of PF plant 11 and SPD-left of Boiler 11 in TPP 2
  • 1999
    • Mounting of air ducts and platforms in Unit 4 and Unit 5
    • Mounting of door for Boiler department in TPP 2
    • Mounting of railing ways for driving stations of 20 a, b, c and d transporters in TPP 2
    • Mounting of railing ways for driving station 20 to west shaft of crasher 1 in TPP 2
    • Repair of PF plant 12A in TPP 2
    • Repair of PF plant 8A and 8B in TPP 2
    • Repair of PF plant 10C and 10E in TPP 2
    • Replacement of ECO upper and medium package Boiler 6 in TPP 2
    • Replacement of tank for desalted water 2000 m3 in TPP 3
    • Preparing of the drum for crack test and removing of the defects of Boiler 4 in TPP Dimitrovgrad
    • Replacement of impeller and renewing of shaft in TPP Dimitrovgrad
    • Repair in factory conditions of coils for ECO 144 pcs
    • Repair of PF plant 9 in TPP 2
  • 2000
    • Replacement of 21 sections of air heater Boiler 9 in TPP 2
    • Repair of PF plant and casing Boiler 8 TPP 2
    • Repair of impellers for milling fans in factory conditions 86 pcs
    • Constructions works on petrol station in Sheinovo
    • Reconstruction of throttle valves in TPP 2
    • Reconstruction of hangers of Boiler 9 in TPP 2
    • Making and mounting of stairs and platforms on levels 13, 16.200, 21.500 for Oil burner systems of Boiler 9 in TPP 2
    • Repair of Boiler GNV 650 in a school in Maglish
    • Repair of heating Boiler GNV 650 in the horst bases Razgrad
    • Full repair of Boiler PLAM 650 in High military school, Shumen
    • Making parts using drawings for company ”Inter Biznes-91”, Sofia
  • 2001
    • Replacement of cold taper Combustion chamber Boiler 3 in TPP 2
    • Full repair of heating surfaces and casing of Boiler 3 in TPP2
    • Replacement of sections of air heater Boiler 3 in TPP 2
    • Full repair of air heaters Boiler 3 in TPP 2
    • Medium repair of Boiler 8 PF plant A, B, C, D, ash crusher in TPP 2
    • Medium repair of rail way level 36 Boiler 1 TPP 3 - 2001
    • Medium repair of rail way level 36 Boiler 3 TPP 3
    • Medium repair of rail way level 36 Boiler 4 TPP 3
    • Medium repair of PF plant A, B, C, D of Boiler 1 TPP 2
    • Medium repair of CRS Boiler 3 TPP 2
    • Medium repair of heating surfaces and casing Boiler 5 TPP 2
    • Medium repair of PF plant of Boiler 6 TPP 2
    • Medium repair of Boiler 5 and 6 in Brekel
    • Maintaining and supporting of the Boiler equipment in Brikel, Galabovo
  • 2002
    • Medium repair of Boiler 7 ID fan, FD fan, ESP and Air heater TPP 2
    • Medium repair of Air heater, ash crasher in TPP 2
    • Medium repair of PF plant Boiler 12 in TPP 2
    • Medium repair of CC, SH1, RH1, SH3,4 , SH2 in TPP 2
    • Maintaining and periodical service of boiler equipment of Brikel, Galabovo
    • Medium repair of Boiler 5 ID fan, DF fan, Air heater and ESP in TPP 2
    • Medium repair of Boiler 6 ID fan, DF fan, Air heater and ESP in TPP 2
    • Medium repair of Boiler 6 casing TPP 2
    • Repair of sealing in TPP 2
  • 2003
    • Medium repair of Boiler 8 – PF plant, Ash crasher in TPP2
    • Replacement of main pipelines from turbine department to Boiler from spring hanger system in TPP “Zaharni Zavodi” Gorna Oriahovitsa
    • Repair of screw of ash cracker in TPP 2
    • Repair of Impellers in TPP 2
    • Construction system of Boiler 1 and 2 in TPP 2
    • Medium repair of Boiler 2 – FD fan, ID fan, ESP, Air heater in TPP 2
    • Medium repair of Boiler 6 – heating surfaces in TPP 2
  • 2004
    • Medium repair of Boiler 7 – PF plant A and B in TPP 2
    • Medium repair of Boiler 12 – CC in TPP 2
    • Medium repair of Boiler 2 PF plant B and G in TPP 2
  • 2005
    • Rehabilitation of Unit 2 in TPP 3
    • Replacement of cold taper Combustion chamber Boiler 10 in TPP 2
    • Full repair of heating surfaces and casing of Boiler 10 in TPP2
    • Replacement of sections of air heater Boiler 5 in TPP 2
    • Full repair of air heaters Boiler 7 in TPP 2
    • Medium repair of Boiler 9 PF plant A, B, C, D, ash crusher in TPP 2
    • Medium repair of PF plant A, B, C, D of Boiler 11 TPP 2
  • 2006
    • Medium repair of Boiler 9 – PF plant, Ash crasher in TPP2
    • Medium repair of Boiler 3 – FD fan, ID fan, ESP, Air heater in TPP 3
    • Medium repair of Boiler 4 – FD fan, ID fan, ESP, Air heater in TPP 3
    • Medium repair of Boiler 4 – FD fan, ID fan, ESP, Air heater in TPP 2
    • Medium repair of Boiler 1 – FD fan, ID fan, ESP, Air heater in TPP 3
    • Repair indoor TPP 2 – Ashcrushers – 12 pcs
    • Medium repair of Boiler 10 G – FD fan, ID fan, ESP, Air heater in TPP 2
  • 2007
    • “Cumerio Med” AD – Pirdop, Bulgaria- an industrial project: Airlift conveying system for copper concentrate and increase capacity of steam dryer lines
    • Medium repair of Boiler 3 – FD fan, ID fan, ESP, Air heater in TPP 3
    • “Sviloza” EAD – Svishtov, Bulgaria - an industrial project: Full repair of sodaregenerator boiler
  • 2008
    • Rehabilitation of boiler-aggregate 6 /KA-6/ - Heating surfaces and slag removal system TPP2
    • Medium repair of boiler-aggregate /KA-12/ - Cleaning of the furnace chamber from slag TPP2
    • Medium repair of Block 1 - TPP3
    • Medium repair of Block 2 - TPP3
      • Rehabilitation of Block 3 - TPP3
      • Replacement of 24 pcs. of heat changers (cubes) II stage
      • Refurbishment of PF systems № 4,5
      • Reconstruction of Steam Air Pre-heaters and mounting of new
      • Steam Air Pre-heaters and auxiliary Steam supply and Air Pre-heater condensate Pipelines
      • Preparation for NDT of 50% of all Boiler pipes
      • Replacement of the Combustion chamber left and back side
      • Replacement and Repair of damaged parts of the Pipelines
    • Rehabilitation of Block 4 - TPP3
      • Replacement of 48 pcs. of heat changers (cubes) I and II stage
      • Refurbishment of PF systems № 4,5,6
      • Reconstruction of Steam Air Pre heaters and installation of new
      • Steam Air Pre-heaters and auxiliary Steam supply and Air Pre-heater condensate pipelines
      • Repair of RH2 with the Headers
      • Replacement of 6 pcs. of spray attemperators
      • Repair of the cold cone – left
      • Replacement of 228 pcs. of pipes
      • Preparation for NDT of 50% of all Boiler pipes
      • Replacement and repair of damaged parts of the Pipelines
  • 2009
    • Refurbishment of Heating surfaces and Slag removing system of Boiler 6 – ENEL Maritza East 3TPP
    • Repair of Unit 1, 2 and 3 – ENEL Maritza East 3TPP
    • Current repair of CC - left of Boiler 1 – ENEL Maritza East 3TPP
    • Current maintenance of FGD oscillating conveyors, belt conveyors, spreader and rake-out machine – ENEL Maritza East 3TPP
    • Current maintenance of coal dozers and feeders
    • Current maintenance of Oil burner equipmenт
  • 2010
    • Preparation, installation and welding of main pipelines and associated supports – ALSTOM Bulgaria EOOD
    • Installation and welding of Feed Water Pipelines low and intermediate pressure - ALSTOM Bulgaria EOOD
    • Cutting of valves, beveling, welding on Unit 1 and 2 – ALSTOM Bulgaria EOOD
    • Drain lines of main pipelines, Unit 2 – ALSTOM Bulgaria EOOD
    • Installation of instrumentation point connections on Unit 2 – ALSTOM Bulgaria EOOD
    • Repair of FGD – Maritza East 2 TPP
    • Medium repair of PF Plant – Maritza East 2 TPP
    • Supply of cleaning devices for belt conveyor – Maritza East 2 TPP
    • Mills and burner equipment, current maintenance of coal dozers and feeders, current maintenance of oil burner equipment – ENEL Maritza East 3 TPP
    • Current Maintenance of Heating surfaces, Boiler and Turbine pipe fittings and turbine pre-heaters – ENEL Maritza East 3 TPP
    • Current and emergency maintenance of rotating devices – ENEL Maritza East 3 TPP
    • Current maintenance of Heating surfaces – ENEL Maritza East 3 TPP
    • Repair of PF Plant and Slag removing system – ENEL Maritza East 3 TPP
  • 2011
    • Industrial cleaning – AES 3C Maritza East I
    • Repair of heating surfaces of Unit 8 – Maritza East 2 TPP
    • Repair of Air Heater, Air Duct and Flue Gas Duct, Unit 2 – Contour Global Operations Bulgaria
  • 2012
    • Repair of undercrane tracks in electric locomotive depot of Troyanovo - 1 mines – Maritza East Mines EAD
    • Mechanical and installation works on bag filters; Mechanical and installation works and supplies to expand the bag filters after drying ovens after MJ – Aurubis Bulgaria AD Pirdop
    • Chemical Equipment Repair Unit 1, Unit 3 and Unit 4 – Contour Global Maritsa East 3 AD
    • Repair of heating surfaces of Unit 1 and Unit 4 – Contour Global Maritsa East 3 AD
  • 2013
    • Installation of technological machines and equipment, gas ducts, pipelines and fittings, insulation; installation of metal structure and equipment – Montage Engineering AD
    • Replacement of Heat exchangers for Air Heater down section 24 pcs. and repair of Air heater Boiler 3 of Unit 3 and 4. Pressure test of pipelines and pressure vessels Unit 3 – Contour Global Maritsa East 3 AD
    • Repair of heating surfaces of Unit 1, 2, 3 and 4 – Contour Global Maritsa East 3 AD
    • Repair of Mills and coal dozers – AES-3C Maritza East I Galabovo
  • 2014
    • Preparation for metal testing of elbows, T-pieces, welding seams and replacement of faulty elbows of Unit 1, 2, 3 and 4 – Contour Global Maritsa East 3 AD
    • Replacement /dismantling and installation/ of coils, headers and elements for strengthening of ECO 1 upper package of Unit2 – Contour Global Maritsa East 3 AD
    • Repair of PF plant right part of Unit 4; Repair of Air heater, Air ducts and Flue gas ducts of Unit 3 – Contour Global Maritsa East 3 AD
    • Refurbishment of PF plant 9E – Maritza East 2 TPP EAD
    • Repair of Mills and coal dozers – AES-3C Maritza East I Galabovo
    • Repair of slag conveyors of Unit1 and Unit 2 – AES-3C Maritza East I Galabovo
    • Repair of grate – AES-3C Maritza East I Galabovo
    • Repair of feeders (belt conveyors) – AES-3C Maritza East I Galabovo
    • Planned and emergency mechanic and repair works – Aurubis Bulgaria AD
  • 2015
    • DN 150 sulphuric acid pipeline – Aurubis Bulgaria AD
    • Autogenous mill and feeding carriage casing replacement – Aurubis Bulgaria AD
    • A part of 96% of H2SO4 pipeline from H2SO4 tank to the end of workshop trestle – Aurubis Bulgaria AD
    • O2 pipeline from main trestle to sulphuric acid production workshop – Aurubis Bulgaria AD
    • Major repair works 2015 – Mondi Stambolijski EAD Inspection and repair of flue gas duct and dust transportation systems Repair of pipeline for sand transportation and hydraulic cylinder, repair of biofuel chute Fabrication and installation of safety devices for vacuum pumps, pumps and inspection manholes of settling tanks
    • Installation of chute bedding system of Coal feeder with oxygen – Maritza East 2 TPP EAD
    • Repair of Coal pulverizing systems – Maritza East 2 TPP EAD
    • Repair of Air heater – Maritza East 2 TPP EAD
    • Repair of Heating surfaces of Unit 1 and Unit 2 – Contour Global Maritsa East 3 AD
    • Repair of Coal pulverizing systems, repair of Air heater, air ducts and gas ducts – Contour Global Maritsa East 3 AD
    • Pressure tests of pipelines and pressure vessels – Contour Global Maritsa East 3 AD
    • Preparation for NDT of elbows, T-pieces, welding seams and replacement of defective elbows – Contour Global Maritsa East 3 AD
    • Preparation for NDT of elbows, T-pieces, welding seams and replacement of defective elbows – Contour Global Maritsa East 3 AD
  • 2016
    • Replacement of drag chain conveyors – Aurubis Bulgaria AD
    • Repair of Scrapers SSC – AES-3C Maritza East I Galabovo
    • Fabrication and delivery of Scrapers SSC – AES-3C Maritza East I Galabovo