TM 55-2840-231-23
9-5. Anti-Icing Air Valve - Testing
INITIAL SETUP
Applicable Configuration
All
ANTI-ICING VALVE/
Testing
a. Apply 100 psig air
pressure to the valve inlet
with a 0.025 in. orifice
installed between the air
source and valve inlet
after installing gauges to
monitor the air pressure
on both sides of the orifice.
b. Apply 3.75 lb
maximum force to hold
lever in the closed position.
c. Allow air pressure on
both sides of the orifice to
stabilize, maintaining
pressure at the orifice
inlet at 100 psig.
If the valve leakage is excessive such that
pressure downstream of the orifice decreases,
replace the assembly.
9-6
Change 13