MIL-H-17660D, MILITARY SPECIFICATION: HEATERS, FLUID, DEAERATING (FOR WATER ONLY) 1,000 TO 1,600,000 POUNDS PER HOUR CAPACITY (18 JUN 1993) [S/S BY W-H-2904]

MIL-H-17660D, MILITARY SPECIFICATION: HEATERS, FLUID, DEAERATING (FOR WATER ONLY) 1,000 TO 1,600,000 POUNDS PER HOUR CAPACITY (18 JUN 1993) [S/S BY W-H-2904]., This specification covers direct-contact deaerating heaters either vented to atmosphere or under pressure ranging between 3 pounds per square inch gage (psig) and 15 psig.