Discover the PVC/PTFE Orifice Plate Flowmeters, designed for gases and liquids. Available in sizes from 1/2" to 24", they ensure reliable flow measurement with easy installation. PVC orifice plate flowmeter, 2" line size, 1.450" bore, 0.7 Beta, water capacity: 320" d.p. W/C, 147.74 GPM flow; air capacity: 372.09 SCFM @ 14.7 psia, 639.87 SCFM @ 20 psig, 1227.63 SCFM @ 100 psig; 2 lb.