Labels:text | diagram | plan | line | technical drawing | parallel | schematic | number OCR: VALUE STEAM ENGINE DRIVE 9 +FROM BOILER + P 8 R T THROTTLE > E VALUE 600 PSIG 7 S 00ZOWZ6w :- BOILER PRESSURE S 6U N R D 5 E E 4 X 1 30 0 2 P S 1 ATM- 0 G 0 ATM-7_