It depends upon the type of valve. There are different patterns of globe and check valves. Also check valves occassional are fitted with springs and/or counterweights. Valves common to the water industry are a little more straight forward. Globe valve losses could be 20 * F and check valves 50* f where f is the Darcy Weisbach friction factor.
More data is available from Flow Resistance A Design Guide for Engineers by Idelchik or the similar text by Miller.
Suggest you get the data from the manufacturer. --- simhadri ra <simharavikumar@yahoo.com> wrote:
hi friends
iam ravi kumar studnet of SAEIT(bhel trichy). i have one doubt on valves. whish valve is having less fricitional losses eaither GLOBE or CHECK valve and why?
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