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  • Users: dxla
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  1. dxla

    Vertical Turbine Pump Base Design

    We are replacing an existing old vertical turbine pump with a new one. Unfortunately, the new pump bolting dimensions (24" centre of bolt to centre of bolt,total of 4 bolts) are larger than the existing pump bolt dimensions (18" centre to centre). The existing concrete pad is 22"x22"x24"high...
  2. dxla

    VVT vs VAV

    Is a VAV system better than VVT system ? Which is more expensive ? What are the advantages/disadvantages? I have a new single level office building (offices, lockers, meeting rooms, computer room, lunch room. Total 6000 sq ft) to design in the west coast. thanks in advance.
  3. dxla

    Heat Loss from PVC Pipe

    How can I determine the heat loss from 2" PVC pipe (carrying H2SO4)at 100 deg F to the ambient air (assume 85 deg F) ? There is no wind and pipe length is 4265 ft. Is there any software available ? thanks in advance
  4. dxla

    Cold Spring

    Hi, according to ASME B31.3 2004 edition, is cold spring allowed to be used to reduce loads on equipment ? I don't have the latest code yet and I hear there are changes to cold springing. thanks in advance
  5. dxla

    Elevator Machine Room Ventilation

    Generally, what is the typical way to ventilate an elevator machine room in an industrial facility ? thanks in advance

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