Transcription of ENGINEERING VALVE SIZING neptronic
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ENGINEERING VALVE SIZING neptronic
Nneeppttrroonniicc See us on the web at SIZINGENGINEERINGHOT, CHILLED WATERGLYCOL 50%2 POSITION APPLICATIONFor 2 & 3 Way isolation, it is recommended to use a linesize VALVE , minimizing pressure drop when the VALVE isopen. In some cases with 2 Way valves a fixed GPMrequirement may suggest a smaller VALVE than the line APPLICATIONIt is recommended to size the VALVE to match the pres-sure drop of the coil being controlled. You can also use a3-5 PSI pressure CALCULATIONG enerally you are given two pieces of information, theGPM (Gallons per minute) and the pressure drop acrossthe coil. It can be given in PSI or Feet of Head. If it isgiven in Feet of Head, you must divide the figure by ( Feet of Head = 1 PSI) to get your PSI. Now that youhave this information the object is to find the Cv (stan-dardized capacity rating) that will allow you to selectyour formula will enable you to find design Cv:CV= G PM PExample:If you have a coil with a drop of PSI and a GPM of 65:CV= 65 Design CV= STEAM15 PSIVALVE APPLICATION2 POSITION APPLICATIONFor 2 Position isolation it is recommended to use theValve Full Port line size whenever possible.
neptronic ® 78 See us on the web at www.neptronic.com ENGINEERING VALVE SIZING ENGINEERING HOT, CHILLED WATER GLYCOL 50% 2 POSITION APPLICATION For 2 & 3 Way isolation, it is recommended to use a line
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