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Type: Posts; User: Mohammed Nofal

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  1. screw compressor vibration isolator

    i have two options for vibration isolator; spring isolator and rubber pads

    please advice about the best vibration isolator for screw compressor
  2. R290 pipe sizing chart and calculater

    hi all , i'm looking for R290 pipe sizing chart i have been searching fora long time but i didn't get anything
    please can you help me
  3. Replies
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    448

    in air handler, fan coil we use cooling coil (DX...

    in air handler, fan coil we use cooling coil (DX or chilled water) , my question is can we use groove tube instead of smooth tube for both DX and chilled water
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    3
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    448

    Groove tube

    can the groove tubes use in the applications in which the fluid inside the tube chilled water ?!
    and what is the best shape of inner surface grooves?
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    4
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    1,007

    yes i need alternative method of connection...

    yes i need alternative method of connection rather than Brazing
  6. Replies
    4
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    1,007

    Refrigerant piping fittings

    Refrigerant piping in many application is connected by brazing and soldering ... i need to use coupling instead of it, is it applicable for HVAC applications or not ?!
    if yes anyone know some...
  7. no, actually it's for my own information thank u

    no, actually it's for my own information
    thank u
  8. Ethylene and propylene glycol in water

    As we know when we use a chiller to produce low water temperature we have to add glycol to avoid water freezing.... my question is at what temperature (inlet and outlet) we have to use Ethelyn or...
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    717

    i know that but i'm from PETRA company in Jordan...

    i know that but i'm from PETRA company in Jordan and i want to get a compressor for testing purposes
  10. Replies
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    717

    R290 compressor Supplier

    I need a supplier for air conditioning compressor R290, please if anybody knows tell me

    thanks
  11. evaporative condenser VS air and condenser

    I want to ask about the condensing temperature of evaporative condenser VS air and condenser at 95 F and about also what about the approach temperature of each type
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    it's recommanded that the Condinsing temperature...

    it's recommanded that the Condinsing temperature = T (water out) + (4-9) F
  13. Replies
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    1,592

    R290 has a performance very close from R22 and...

    R290 has a performance very close from R22 and also no GWP and Ozone depletion but the problem it is flammable , i wanna to use it in my unit the question now, is there any risk of using it ? can the...
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    1,592

    yes its highly flammable, but i ask about the...

    yes its highly flammable, but i ask about the piping design there is any difference !
  15. Replies
    14
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    1,592

    thank you , but the paper does not talk about R290

    thank you , but the paper does not talk about R290
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    14
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    1,592

    i did, but no good results

    i did, but no good results
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    14
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    1,592

    R290 VS R22

    I want to know what is the advantages of using R290 instead of R22 ?!

    is there any difference in piping design , and what about the capacity ?!
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