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Specifications
The following Specifications are generally used as a Minimum Standard unless otherwise specified by the Client.
Tube:
up to and including -
450mm -
500/600mm -

600mm and above -
 BS EN10217-1:2002 or API 5L Grade B ERW
BS EN10217-1:2002 or API 5L Grade B
ERW or Rolled & Submerged Arc Welded from Plate to BS EN10025 Grade S275
Rolled & Submerged Arc Welded from Plate to BS EN10025 Grade S275
Flanges:
  BS EN 1092-1:2002
Welding Fittings:
  BS1640
Bolts:
  BS 4190 Gr. 4.6 (galvanized)
Gaskets:
  BS 2494 (3mm thick EPDM)
Welding:
  BS 2971 Class II (Up to and inc. 24 bar) BS 2633 Class 1 (Above 24 bar)



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