TESTING - Design Validation of Slab/Expanding Gate Valve and Positive Choke in accordance to API 6A 20th Edition Annex F PR2.


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NuStar Technologies has conducted design validation on 2-1/16” and 4-1/16” slab/expanding gate valve and 2-1/16” positive choke in accordance to API 6A 20th Edition Annex F PR2.


Scope of Work - Slab/Expanding Gate Valve

  • • Force Measurement
  • • Dynamic Test at Room Temperature (160 Cycles)
  • • Dynamic Test at Maximum and Minimum Temperature (20 cycles each)
  • • Body, Seat and Low Pressure Seat Test at Maximum and Minimum Temperature
  • • Body pressure/temperature cycling test.
  • • Working pressure and low pressure body and seat test at room temperature.


Scope of Work - Positive Flow Choke

  • • Gas body test at room temperature
  • • Body pressure/temperature cycling test
  • • Working pressure and low pressure body and seat test at room temperature
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