MIL-DTL-62547D
TABLE III. Extinguisher weight.
Empty
Weight of
Weight of
Total charged
Class
Weight (kg)
Halon 1301 (kg)
Nitrogen (kg)
weight (kg)
+0.00
+0.025
+0.025
1
W
2.27
0.092
W + 2.362
-0.10
-0.000
-0.100
+0.00
+0.032
+0.032
2
X
3.18
0.132
X + 3.312
-0.10
-0.000
-0.100
+0.00
+0.050
+0.050
3
Y
4.54
0.184
Y + 4.724
-0.10
-0.000
-0.100
3.6 Support and ownership requirements.
3.6.1 Discharge valve.
3.6.1.1 Repair parts and tools.
3.6.1.1.1 Repair parts kit. The valve shall be constructed to minimize repair parts and
effort required to restore the valve to operational status following a discharge. If this effort
requires installation of new parts, these parts shall be available in the form of a kit (see Drawing
5704998). Sealing materials shall not be silicone based or soluble in Halon 1301 (see
4.4.4.1.1.1).
3.6.1.1.2 Special tools. The construction of the valve and components shall keep special
tool requirements to a minimum. All special tools shall be identified as to use and also be
available in kit form (see 4.4.4.1.1.2).
3.6.1.2 Maintainability. The mean time to repair (MTTR) the valve shall be not more
than 0.5 hours when no rebuild kit is required or not more than 2 hours for a valve which
requires a kit (see 4.4.4.1.2).
3.6.1.3 Nameplate. The discharge valve shall have a nameplate attached in a
conspicuous location. The nameplate shall have the following minimum information (see
4.4.4.1.3):
a.
National Stock Number (NSN)
b.
Serial Number
Manufacturer s Name or Identification Code
c.
d.
Repair Kit NSN (if kit is required)
3.6.2 Extinguisher.
3.6.2.1 Reliability. The extinguisher shall be 90% reliable with 85% confidence to
discharge as specified in 3.4.1.2 when activated electrically or mechanically (see 4.4.4.2.1).
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