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Iris Valve - Repeatability Test
Brightwater, Seattle, WA. : Brown and Caldwell
Repeatability test at 90% Open
o Open to 90% - measure 1,800 scfm
o Closed to 30% for 30 seconds
o Open to 90% for 30 seconds
Measure 1,791 scfm
Richmond, Indiana – Donohue & Associates
Repeatability test at 63.2% Open
o Open to 63.2% - measure 164 scfm
o Close to 40% for 30 seconds
o Open to 63.2% for 30 seconds
Measure 163.4 scfm
Fishers, Indiana – Bowen Engineering
Repeatability test at 94.4% Open
o Open to 94.4% - measure 982 scfm
o Close to 70% for 30 seconds
o Open to 94.4% for 30 seconds
Measure 988 scfm
RESULT: 99.3% REPEATABLE!
< Simple in Design - Reliable in Function - Precise in Control >