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What is the difference between Water meter & Flow meter?
Jun 3, 2015 · Water Meter- A water flow meter is a measurement device installed in pipelines through which water flows. The meter repeatedly monitors the flowing water in the pipe in order to measure the volume of the water flow. Flow Meter- Flow Meter is a device used to measure the flow rate of Fluid, gasses, and liquid.
How to calculate GPM (water flow) for a fire pump? What are the …
Apr 20, 2016 · A1¾-inch handline should have a nozzle tip no larger than7⁄8 inch.The amount of water discharging from a smooth bore is determined by the nozzle pressure and the inside diameter of the opening. The formula for determining the GPM flow from a smooth bore nozzle is as follows:.D2√P (D = nozzle diameter; √P = square root of pressure)
What is BTU Meter and where we install in chilled water system?
Jul 12, 2015 · BYU meter is used on chilled water units to keep record of chilled water utilization of that unit for billing purpose in shopping malls or office buildings where we have different tenants. Upvote (5)
For chilled water system, what is the formula or the relation of TR …
Jun 29, 2015 · Converting Btu/hr to TR (dividing by12000) and considering10 degrees Fahrenheit for temperature difference (water inlet-water outlet), we reach the following formula: TR=0.42GPM. 2- For condenser in water cooled condensers: Consider3 GPM for one TR. Please note that it may vary depends on temperature difference in your system. Regards
What is the reason behind installing the DRV and Control Valve on …
Aug 6, 2014 · DRVs and control valves are used to regulate the chilled water flow rate. We need to balance the flow rate considering the pressure drop in the coils of the AHU/FCUs.Hence while putting the valves in the return the flow measured is considering the pressure drop in the coils also and therfore you will get the accurate water flow in gpm while water balancing.This is as …
What is the Thumb Rule for Sizing the Domestic Water Pump
Mar 10, 2017 · A test and balance report has been submitted without documentation of domestic hot water recirculation readings. Top Answer: start with action B and all other choice A, C , D can use after See More Answers (7)
What is role of VFD in chilled water system and where we used?
Oct 24, 2016 · Whereas on a two way valve, when the valve is fully or partially closes, the water pressure increase which is sensed by pressure sensors which give signal to VFD to reduce the speed of motor and flow rate is reduced and vice versa.
How to calculate the pressurization unit pump flow - Bayt.com …
Apr 22, 2017 · A pressurisation unit, PU for short, is a mechanical piece of equipment used to pressurise a system, usually heating or hot and cold water services. It fills the system to the optimum pressure to allow the system to flow correctly; it uses one or two small peripheral pumps to maintain the pressure throughout the system.
What is the difference between 2 way & 3 way control valve in …
Oct 20, 2016 · Two way control valves are used near the A.H.U in supply and return lines, so that the chilled water from the machine transfers to the primary pumps of the chillers. Three way control valves are used near the A.H.U whenever the temperature of the chilled water does not decrease more than 12 degree Celsius it returns the water back to the A.H.U.
How could you reduce the water table to protect a structure?
Feb 7, 2014 · If applicable excavate drains/shallow wells at vantage points close enough to structure; atleast upto the invert elevation of substructure (about2-3 m away from structuture but deep enough for ground water to collect into it). pump water away continously to a safe place away from structure (spout from pump should always discharge downstream).