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  • Users: HeshamM
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  1. HeshamM

    Split Case vetically mounted Vs Vertical In-line

    Now days, can we still say that Split case vertically mounted pumps are easier to be maintained over the vertical in-line pumps. What are the other advantages and disadvantages which allow you determining which is better for your application? Application: Chilled water systems
  2. HeshamM

    Authority of Butterfly valve when used as control valve

    When trying to install a two-way control valve of 450mm size and larger, we usually end up using motorized butterfly valves (globe type is very expensive). The application is chilled water system, Plate Heat Exchanger. Does valve authority matters when using BF valves for flow control application?
  3. HeshamM

    Lowest Condenser Temp is the better?

    Is it true that the lowest condenser temperature you can get is the better for the chiller efficiency? Or below certain temperature there will be no benefits to the efficiency?
  4. HeshamM

    Jockey Pump Flow Rate?

    To calculate the flow rate of the jockey pump, it is related to one sprinkler flow rate and the leaking rates as per the figures in the NFPA (at design stage it is not possible to get that actual), would 10% considered a correct value or is it too much?
  5. HeshamM

    SCADA Vs BMS (BACNET)

    In the application of district cooling plants, which system is better to control and monitor the process of producing chilled water and the distribution on the buildings Heat Exchanger Rooms. SCADA or BacNet BMS system?
  6. HeshamM

    AutoCad: How to minimize the file size

    I always face a big problem when working on the Solid Modeling projects on AutoCad, the size of the file gets bigger and bigger with all the details I add, is there a way to minimize this file size?
  7. HeshamM

    AUTOCAD - File Size

    I am facing a problem with the size of the AutoCad dwg files when working on the solid modeling, specially when the number of details increase. Beside purging is there any other way to minimize the size?
  8. HeshamM

    Flexible connection alignment

    Does anyone know any standard for the allowed tolerances of aligning a flexible connection in piping systems?
  9. HeshamM

    Control Valves - Large sizes - Authorities

    When trying to install a two-way control valve of 450mm size, we usually end up using motorized butterfly valves (globe type is very expensive). Does valve authority matters when using BF valves for flow control application?
  10. HeshamM

    Large Butterfly Valves Liner

    Large sizes butterly valves' liners can be either replaceable or vulcanized. Does anyone have any experience in both? Which is better?

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