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Where do we install the Balance Valve ( DRV ) in the chilled water system , I mean at risers , FCU and AHU (Supply Or Return) and Why ?

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Question added by Zaid Al Shurafa , Mechanical Project Engineer , Amana Contracting And Steel Buildings - DUBOX
Date Posted: 2016/10/30
Anirban Dutta
by Anirban Dutta , Project Engineer and Manager of Design Services , Arabi enertec KSCC WLL

In high rise building, chilled water pipes (supply line) vertical riser from where horizontal pipes to be taken for each floors we are providing the DRV's (n numbers of FCU's and AHU's are provided in the floor). It is provided to do the balancing of the chilled water building.

Or else it is to be provided in chilled water supply line of FCU's OR AHU's for the balancing of the system.

Syed Najeeb Ahmed
by Syed Najeeb Ahmed , Mechanical Engineer , POWERGAS

In the pumps to save power! DRV helps pumps to automatic On/Off when ever the pump pressure is (i.e GPM) high or low ! 

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