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Fisrt of all, let me accept that i am novice in HVAC industry. For one of our project, vendor have supplied 225 TR Screw type vapour compression chillers with various chiller trip set points. I like to know the basis of following Chiller Trip set points. Like there is a chiller trip on...

Why the nuclear reactor containment dome is generally hemispherical in shape? Why not flat or circular?

Is there any manufacturing differences between ASME Section III NC piping and ND piping. Can we use Class 3 piping (ND) as a replacement of Class 2 piping (NC) after carrying out required NDT tests for NC piping?

Thnks jpankask. Can u please elaborate how class 2 and class 3 piping differ in their manufacturing process

In one of our projects, piping designed as per ASME Section III ND is used for System A (say) whereas piping designed as per ASME Section III NC is used for System B. Due to some procurement issues, ASME Section III NC piping procured is less than required. Can we use piping qualified as per...

I have three queries related to Hydro testing: (i) Why piping hydro test is done at pressures higher than design pressure? (ii) Why as per ASME Section III NB, NC, ND, hydro test pressure = 1.25 times of design pressure whereas as per ANSI B 31.1 (Power piping code), Hydro test pressure = 1.5...

Thanks All. With help of your replies, convinced the Client

In one of our project, we are installing 350 NB basket type strainers at suction of horizontal pumps of closed loop chilled water circuit. Our client wants the strainers to be orientated in vertical orientation (i.e. in vertical headers) because of ease of insertion/removal of strainer element...