... 7,50016,30018,80017,70017,70017,40016,30017,50016,30017,50011 ,20 0— 12, 30010 ,20 018,300 20 ,000 21 700 23 ,30015,00016,70018,1001 6,90018,30018,300 20 ,000 20 ,000 20 ,000 20 ,000 23 ,300 21 ,700 25 ,000 25 ,000 25 ,000 25 .000 21 .700 23 ,300 21 ,700 23 ,300 20 ,00016,700 20 ,00016,700Wall ... 1.1Class1503004006009001500 25 00 ~20 °FtolOO° 28 5740990 148 0 22 2037056170MAWP, psigF 100°Fto200°F 25 06759001350 20 2533755 625 Mechanical Design of Pressure Vessels 335Figure 12- 2. Internal ... 1 .25 X, 1.75X The wave length may be calculated from: 314 Design of GAS-HANDLING Systems and Facilities the least expensive and are used in small air compressors. Forced-feed systems ...