complete sheet is with staggered or straight square opening.
this is perforated metal.
this is to calculate burst pressure for filtration screen in Strainer.
square opening may be 0.04" to 0.25"
see atatched pic for perforation...
SEC VIII UG-53 gives formulas to calculate ligament effiency if the opening are in circular shape.
can any one help, if the opening is of square or rectangle shape. how to calculate the ligamnet efficiency.
hi,
Most of the manufacturers design High performance butterfly valve with bi-directional capability.depending upon manufacturer using the valve in reverse may reduce lifetime.
if you get the hydrotest report from manufacturer,check the report and see if the unit was tested bi-directional in...
