MIL-STD-2042-6B(SH)
NOTE: Alternate test configurations that provide the same functionality may be utilized.
NOTE: For BOF tubes containing no fibers, the pressure test equipment is connected to one end of the tube. The other end shall have been previously end sealed in accordance with method 2Jl of this Standard Practice.
NOTE: For BOF tubes containing fibers, the pressure test equipment is connected to a short BOF tube or pressure fitting extending from a tee connection previously installed between BOF tubes containing the fibers. The tube path ends shall have been previously end sealed in accordance with method 2Fl of this Standard Practice.
BOF
tube
Pressure gauge
BOF
tube
Short tube or
pressure fitting
Pressure source
Isolation valve
Bleed valve
Tube coupler or pressure fitting adapter
Shipboard tubes
under test
FIGURE 6Jl-l. BOF tube seal verification test setup (typical).
Step 2 - Adjust the pressure source to 234 kPa (34 PSI) and apply this pressure to the BOF tube. Allow the pressure to stabilize.
Step 3 - Shut the isolation valve so that the BOF tube is isolated from the pressure source. Read the initial pressure at the pressure gauge and record the value. Maintain this configuration for 5 minutes.
NOTE: If the connection to the BOF tube is a pressure valve assembly (Connective Solutions FC08Bl or equal), the pressure test equipment may be disconnected from the BOF tube during the test.
Step 4 - Read the final pressure at the pressure gauge and record the value. NOTE: If the pressure test equipment was disconnected from the BOF tube
after initial pressurization, the pressure test equipment must be
reconnected to the BOF tube before making this measurement.
Step 5 - Using the bleed valve, reduce the pressure in the BOF tube to 0 kPa (0
PSI).
Step 6 - Disconnect the pressure test equipment from the tube under test.
6Jl-2
METHOD 6Jl
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