标准施工手册 STANDARD PRACTICES MANUAL 20-00-02/70-00-01(55)

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Filtration-Edge Type  Fluid filters comprised of notched, flat discs or wires of trapezoidal, triangular, or related cross section where contaminants are entrapped at the edges of the media. 
Flow Rate  The rate at which a fluid or gas is passed through a filter or system. 
Line Size  The type and size of fluid line used in a system. 
LOX  Liquid oxygen. 
LOX Cleaning  The process of degreasing or making a component completely free of any hydrocarbons and foreign particles. 
Media  A material or controlled pore size or mass through which a fluid is passed to remove foreign particles held in suspension.  A part of the filter element. 
Metal-Sintered  Porous metals made of powdered stainless steel, nickel, bronze, nickel silver, gold, silver, or other metals. 
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Inspection
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Table 307. Filtration Terms and Definitions (Cont)
Term  Explanation 
Micron  One millionth of a meter or 0.000039 of an inch (0,0009906 mm). 
Migration-Abrasion  Dirt, generated by poorly designed parts that rub together and wear during vibration or shock, which enters the system fluid stream. 
Migration-Media  Break away of the filter material, which travels downstream. 
Nominal  An adjective relating to contaminant particle size. Filters are normally assigned a nominal efficiency rating which implies that a given percentage of nominal size particles, or those of greater size, will be removed by the filter when tested with a specified test contaminant under specified test conditions.  In assigning a nominal rating to a filter media, glass beads and AC Fine Test Dust are usually specified as the test contaminant. 
Pressure-Burst  The maximum design condition of the housing before failure. 
Pressure Drop-Clean  The differential pressure drop across a clean filter at rated flow measured in pounds per square inch. 
Pressure Drop-Maximum Allowable  The maximum pressure differential of a filter under specified fluid and flow conditions. 
Pressure-Maximum Differential  The highest pressure differential which filter element is required to withstand without failure or collapse. 
Pressure-Maximum Operating  The maximum operating pressure through the system. 
Pressure-Operating  The normal pressure at which fluid or gas moves through a system. 
Pressure-Proof  The maximum pressure that a filter can withstand without damage or leakage of the media. 
Pressure-Surge  The peak system pressure experienced because of varied operating conditions, such as initial start up. 
Service Life  The length of time a filter will remain on stream before it exceeds the maximum allowable pressure drop. 

Inspection
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1.  
AIR FILTER 10. LINE-TYPE ELEMENT

2.  
SHUTOFF VALVE 11. ELEMENT ROTATION KNOB

3.  
AIR PRESSURE REGULATOR 12. SHUTOFF VALVE

4.  
AIR PRESSURE GAGE 13. SHUTOFF VALVE

5.  
NEEDLE VALVE 14. ELEMENT ROTATION KNOB

6.  
SHUTOFF VALVE (BLEED) 15. TANK (TRANSPARENT)

7.  
MANOMETER (0 TO 24 IN. H20) (12 IN. X 10 IN. X 8 IN.) (609,6 MM H2O) (304,8 MM X 202,2 MM X 203,2 MM)

8.  
TANK (TRANSPARENT) 16. FLUID (SOLEX 190) (TYPICAL) (12 IN. X 8 IN. X 8 IN.) 17. RESERVOIR-TYPE ELEMENT (304,8 MM X 202,2 MM X 203,2 MM)

9.  
FLUID CONFORMING TO MIL-H-5608

Bubble Point Test Diagram
Figure 327
　
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