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Type: Posts; User: Hasny

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  1. Replies
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    Dear Pinkerton, I fully understand the concern...

    Dear Pinkerton,
    I fully understand the concern you have shown. Let me clarify as it seems that you have got me wrong. A lot of systems that I have designed are working perfectly. I usually do it...
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    Are KSB pumps UL listed

    Are KSB pumps UL listed. Second, should I go for a split case or end suction (horizontal) for delivering 750gpm in a fire sprinkler network. Thanks
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    Stainless steel floor drain

    How can one know if a floor drain is of stainless steel material or brass with chrome finish. Believe me they almost look alike and I really face difficulty at times while approving floor drains of...
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    1,758

    Fire sprinkler system

    Just want to know a little idea as to how many sprinkler heads can one i connect with a 4" dia line, 3" dia line, 2" dia line and so on. Would be great if someone could share it in a tabulated form,...
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    Thanks, any idea where they are located inside...

    Thanks, any idea where they are located inside AHU, and must have great impact on the static pressure.
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    AHU with built in sound attenuators

    Are there any such AHUs avialable which have built in sound attenuators. Meaning inside the AHU body, immediately after the blower fan...there is sound attenuators. Thanksj
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    Height of air duct inside warehouse

    What should be the approximate height of a supply air duct inside a warehouse whose side walls are 6 meters high and racks for storing goods would be 5 meters high. I am more interested in knowing...
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    Sleeve for chilled water pipe !

    Does an underground chilled water pipe entering a building through grade beam or a wall require any kind of pipe sleeve. If so, what should be the material of the sleeve if the pipe entering is...
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    Underground chilled water piping !

    I have to embed around 15 meters of chilled water supply and return lines. I will give them min two coates to epoxy paint, insulate them with rigid fiber glass pipe insulation having vapor barrier...
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    Thanks Bob, the only concern is that DS should...

    Thanks Bob, the only concern is that DS should not get effected by the inside moisture thanks anyway.
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    I am afraid, guess work won't do, if you people...

    I am afraid, guess work won't do, if you people have got a chance to work on it or have seen the cold storage, or would be great if any relevant codes could be referred. Weather proof switches are...
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    Cold storage lighting

    I am in the process of *designing a cold storage room, where should I provide the disconnect switch for the evaporating coolers (2 nos) and lighting fixtures. Should it be inside the cold storage...
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    Warmer air holds more moisture ??? Is it exactly...

    Warmer air holds more moisture ??? Is it exactly so, my understanding is that when cooler air mixes with room air which is at relatively higher temperature, RH comes down. Correct me if I go wrong.
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    Thanks a lot zeke, much clear now.....have a...

    Thanks a lot zeke, much clear now.....have a little extension to the same subject.....I have also been designing stream humidifiers / humidistats in the discharge side of the supply air ducts of AHU...
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    @zeke, I am just enquiring whether in practical...

    @zeke,
    I am just enquiring whether in practical does it happen that air at diffuser is at 90% RH. I personally think that it is much lower than what my colleague is insisting at. I have my room...
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    Moisture content of cool air in room diffuser

    Is it true that the moisture content of the air when it enters the conditioned room via supply air diffuser would be around 90%. I have designed the room at 50% RH but am bit confused after one of my...
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