MIL-PRF-81380E
1.7500 ± 0.0625
(4 440 ± 0 016 cm)
Mounting end configured with external O-ring to effect a positive seal in mounting hole with a diameter
of 1.313 ± 0.002 (3.340 ± 0.005 cm)
NOMINAL
LENGTH
B
A
FLOW RATING
FLOW RATING
30.250 ± 0.0625 (76.64 ± 0.16 cm)
30.8125 ± 0.0625 (78.26 ± 0.16 cm)
(GPM)
(LPM)
30 (76.2 cm)
30 GPM (114 LPM)
25.250 ± 0.0625 (64.14 ± 0.16 cm)
25.8125 ± 0.0625 (55.56 ± 0.16 cm)
25 (63.5 cm)
25 GPM (95 LPM)
20.250 ± 0.0625 (51.44 ± 0.16 cm)
20.8125 ± 0.0625 (52.86 ± 0.16 cm)
20 (50.8 cm)
20 GPM (76 LPM)
15.250 ± 0.0625 (38.74 ± 0.16 cm)
15.8125 ± 0.0625 (40.16 ± 0.16 cm)
15 (38.1 cm)
15 GPM (57 LPM)
10 (25.4 cm)
10.250 ± 0.0625 (26.04 ± 0.16 cm)
10.8125 ± 0.0625 (27.48 ± 0.16 cm)
10 GPM (38 LPM)
5 (12.7 cm)
5.250 ± 0.0625 (13.34 ± 0.16 cm)
5.8125 ± 0.0625 (14.76 ± 0.16 cm)
5 GPM (19 LPM)
Notes:
1.
Unless otherwise specified, dimensions are in inches.
2.
All materials shall be compatible with aviation fuels.
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Direction of flow is outside to inside
Figure 1. Monitor element.
3.4 Housing.
3.4.1 Housing configuration. The filter/monitor housing shall be configured to hold the
required number of elements (see figure 1) and meet the flow rate specified in the contract (see
6.2). Adequate provisions to effect a satisfactory sealing arrangement for each element shall be
provided between the inlet and outlet compartments. The interior deckplate shall have the
required number of mounting holes for the elements, each hole having a diameter of
1.313 ± 0.002 inches (3.335 cm ± 0.05 mm) and shall comply with 3.5.1. The free ends of all
elements, regardless of mounting assembly, shall be supported firmly against vibration. This can
be accomplished through the use of an element spider joining elements together and stabilizing
the spider against the vessel wall. An electrical bonding device shall be used between the spider
and the vessel.
3.4.2 Piping connections. Inlet and outlet connections shall be as specified in the contract
(see 6.2) and shall be permanently marked.
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