... developed a high performance test, this equipment imported hydraulic components, with American NI company LabView platform independent ... pressure),2 pulse frequency ratio: 0.5-1.25 Hz,blunt speed can be arbitrarily set;3 ... 2-8,7 for pipe size: 6-51mm.Four, the main functions and characteristics1 a hose pressure ... alarm, door can't test, stopping, etc.). hydraulic hose assemblies pulse test machine