Ellipsoidal Head 2:1(EHA,EHB) 108-6500mm  x3-300mm

Hemisphericalhead        159-5000mm  x5-300mm

Torisphericalhead           108-6500mm x  3-300mm

Toriconicalhead               200-6500mm x 5-200mm

tubesheet                      108-7500mm   x5-100mm

 Welding procedure, according to ASME IX
Execution standard as per  ASME VIII Division 1

 1.Shape, normal diameter (internal diameter Di, externaldiameter OD), thickness, straight flange,
2.Execution standard: ASME VIII div-1/JB/T4746-2002

3.Material requirements: re-inspection, UT inspection,normalizing, corrosion test.
4.Minimum thickness  after forming /nominal thickness beforeforming
5.Welding: welding seam position, welding test plate
6.Nondestructive inspection:
7.Heat treatment

Hemispherical head