Bid document

Here you will recive compact information about product range, materials, equipment, welding and testing equipment etc.

Coordination of downtime

Coorinate repair work that occurs during downtime (such as during scheduled turnarounds in refineries)

A skilled A&W employee determines the necessary work on the components of heat exchangers and pressure vessels to be revised and does also manage the transport to/from the A&W facilities. So we offer you the complete service including pick-up from your plant as delivery of the repaired and TÜV-approved components.

New production of tube bundles during shut down PCK – example 1

 

Production of a tube bundle with diameter 1450 x 6000 with 908 tubes 25 x 2,5 within 7,5 workdays in the 3-layer system  made of P265GH/P235GH

  • delivery sheet 120 thick within 1 workday, delvery exchanger tube in 4 workdays
  • fabricate the tube sheets in 2,5 workdays, parallel
  • Laser cutting of baffles (7 pieces) in 2,5 workdays
  • Bundle structure and assemblies with 0,5 workday
  • Pipe welding (TIG hand) to 1,5 workdays
  • Apply the tube to 1 workday
  • Bundle insert / water pressure test at 1 workday

New production of tube bundles during shut down PCK – example 2

 

Production of a tube bundle with diameter 1450 x 6000 with 1518 tubes 25 x 2,5 / 30 x 2,5 (10 workdays in the 3-layer system)  made of P265GH/1.4541/1.4404

  • delivery sheet 140 thick within 1 workday, delvery exchanger tube in 4 workdays
  • fabricate the tube sheets in 4 workdays, parallel
  • Laser cutting of baffles (18 pieces) in 4 workdays
  • Bundle structure and assemblies with 0,5 workday
  • Pipe welding (TIG hand) to 2 workdays
  • Apply the tube to 1,5 workdays
  • Bundle insert / water pressure test at 1 workday