SECTION II. DEFINITION OF UNUSUAL TERMS

GLOSSARY SECTION I. ABBREVIATIONS - TM-10-4320-344-24_701

TM-10-4320-344-24 Pump Assembly Water 600 GPM Model 609-A (NSN 4320-01-184-7494) Model 609-C (NSN 4320-01-261-6470) Model US636HCCD-1 Manual
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SECTION II. DEFINITION OF UNUSUAL TERMS UNUSUAL TERMS. This section provides definitions for terms used in this manual which are not defined in the United States Army Dictionary (AR 310-25). The term appears on the left of the hyphen, "-". The definition for the term appears immediately to the right of the hyphen, "-". TERM DEFINITIONS Suction Pressure Head -The pressure against which a pump forces liquid, expressed in feet. Each pound of pressure per square inch against which the liquid is forced is equivalent to lifting a column of water 1 inch high square 2.31 feet high. The head includes the height to which the liquid must be raised plus the force required to overcome friction losses in the pipeline or hoseline. -As used on pump suction gauges, the negative or positive pressure at the pump suction inlet. I t w i l l be negative pressure if the inlet liquid is exposed to the atmosphere below the suction inlet (such as a source pump taking water from a well, stream, or l a k e ) . It will be a positive pressure if the inlet liquid is from an elevated source (such as a storage tank) or an upline pump. Total Discharge Head -The sum of the suction pressure and the discharge pressure expressed in feet. GLOSSARY-2 TM 10-4320-344-24

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