BLOW-OFF TEST VALVE ANALYSIS A blow-off test to determine compressor performance during part load conditions is required at a newly built compressor plant. The test requires controlled flow variation in order to test the compressor’s performance within the specified range. For this, a pipe header with 1½” and 1” solenoid valves needs to be designed. The flow rate should be incrementally variable between 30 Nm 3 /min and 160 Nm 3 /

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