Pressure relief valves used as a safety release to open and relieve overpressure being parts of machines; burst discs, namely, a safety release device designed to open and relieve overpressure at a predetermined differential pressure being parts of machines; pressure reducing valves used as parts of machines

'burst':18 'design':25 'devic':24 'differenti':34 'disc':19 'machin':17,39,47 'name':20 'open':10,27 'overpressur':13,30 'part':15,37,45 'predetermin':33 'pressur':1,35,40 'reduc':41 'releas':8,23 'relief':2 'reliev':12,29 'safeti':7,22 'use':4,43 'valv':3,42

Manually operated pressure reducing metal valves not including machine parts

'includ':8 'machin':9 'manual':1 'metal':5 'oper':2 'part':10 'pressur':3 'reduc':4 'valv':6

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