MIL-F-52429F
103.
Dissimilar metals as defined in MIL-STD-889 are not effectively
insulated from each other (see 3.3.1.1).
Used, rebuilt, or remanufactured components pieces, or parts
104.
incorporated in the filter-separator (see 3.3.2).
105.
Differential pressure dial gauge not as specified (see 3.6).
106.
Hardware such as bolts, nuts, washers, and screw threads not as
specified (see 3.8).
107.
Cover gasket replacement not as specified (see 3.9).
Sight gauge gasket replacement not as specified (see 3.10).
108.
Chemical coating not as specified (see 3.12.1).
109.
Filter-separators not cleaned and air dried after testing (see 3.13).
110.
Workmanship not as specified (see 3.14).
111.
Weldments and castings not as specified (see 3.14.1).
112.
Welder certification not available as specified (see 3.14.1.1).
113.
Dimensions not as specified.
114.
Identification marking incorrect, illegible, or missing (see 3.11).
115.
Instruction plates are not as specified (see 3.11).
116.
Treatment and painting not as specified (see 3.12).
117.
Color not as specified (see 3.12).
118.
Tests.
4.5.2
The filter-separators shall be tested to the
4.5.2.1 Performance.
following performance requirements as specified in MIL-F-8901, table III.
a.
Differential pressure.
Permanent separator stage (inside to outside design).
b.
Water removal, one percent.
c.
Nonconformance to any requirements of 3.5.2 through 3.5.4 or to the applicable
requirements of MIL-F-8901 shall constitute failure of this test.
4.5.2.1.1 Hydrostatic pressure.
The hydrostatic pressure test shall
conform to the requirements specified in 3.5.1 and 3.5.1 1 of this
Nonconformance to 3.5.1 and 3.5.1.1 shall constitute failure
specification.
of this test.
Subject the gauge to a
4.5.2.2 Differential pressure dial gauge.
hydrostatic pressure equal to the maximum scale pressure, and hold at this
Within 10 minutes after the pressure is
pressure for a minimum of 30 minutes
released and without recalibration or adjustment, readings shall be taken at
the anticipated initial operating pressure, the
three intervals on the scale
pressure at which the elements are to be changed, and the maximum scale
The gauge shall be tapped sharply with the finger at approximately
pressure
A dead-weight tester or
the center of the scale area before each reading.
mercury manometer with air pressure or calibrated check gauge shall be used in
Testing of the gauge shall be in an ambient
calibrating the gauge.
Nonconformance to 3.6 shall constitute failure of
temperature of 68
this test.
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