Quality Control
  
Quality Control Test Stage Inspection (Visual 100%)
The process controls are rigidly enforced throughout the production time to ensure that finished goods are of the highest quality.

Raw Material Testing
Important raw materials, other ingredients are tested, prior to their use, for their essential physical and chemical properties, in a well equipped laboratory.

Raw Casting are inspected for freedom from any such defects as blow holes, hard spots, cold shuts, shifts and sand depth etc.

Mechanical Tests (Sampling Method)

  • Galvanized Castings are inspected to ensure that the zinc coating is smooth, clean, continuous and free from black and acid spots.

  • Machined fittings are inspected for any such defects on the threaded portions as thin threads, break threads, fins and pin holes.

  • Annealed Castings are inspected for cracks and distortion.

Specifications

 "UNIK   BRAND" ISS ISO BSS JIS
Min. Tensile Strength (kgf/mm2) 32 30 30 28 28
Min. Elongation (%) 7 6 6 6 5
Min. zinc coating (gms/m2) 655 610 450 450  
Max. Working Pressure (kgf/cm2) hydraulic 20 14 20 14 20
Angle Tolerance Degree (+/-) 0.50 1.00 0.50 0.45 0.40
  


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