ACE95 Series
8
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1
Table 5. Type ACE95 Diagnostics Table: Cv 1 through 4, Inlet Pressure Range Spring 121 to 200 psig (8,3 to 13,8 bar)
Table 6. Type ACE95 Diagnostics Table: Cv 5 through 10, Inlet Pressure Range Spring 25 to 50 psig (1,7 to 3,5 bar)
2. Remove the upper and lower diaphragm plates
(keys 10 and 48) and the diaphragm (key 11). (The
actuator gasket (key 12) sits on top of the diaphragm.)
In cases where the pressure range is positive, the
upper diaphagm plate is larger than the lower diaphragm
plate.
3. Remove the internal bonnet screws (key 28) that
attach the lower actuator case (key 30) to the bonnet.
Remove the lower actuator case and the actuator
gasket (key 27).
4. If you are performing disassembly operations on a
Type ACE95Sr, remove the cap screws (key 50) that
attach the bonnet (key 17) to the body (key 18).
5. Lift the bonnet (key 17) from the body (key 18).
Note
Slightly rotating the bonnet may help
loosen the O-ring (key 19).
Main Valve Disassembly
1. Remove the main valve (key 25) along with the
main valve spring (key 26), spring shim (key 34, 25 to
50 psig, Type ACE95 only), and spring guide (key 49,
Type ACE95Sr only) from the bonnet (key 17).
2. Unthread the screw (key 20) from the main valve.
Disassembly
To avoid personal injury resulting from
sudden release of pressure, isolate the
valve from all pressure and cautiously
release trapped pressure from the pilot or
valve before attempting disassembly.
Spring Case Disassembly
1. Remove the actuator cap (key 1) and the spring
load by unthreading the adjusting screw (key 2). See
figure 5.
2. Unthread the hex-head screws, lock washers, and
nuts (keys 32, 28, and 31) from the upper and lower
actuator cases (keys 33 and 30). Lift the upper actuator
case from the lower actuator case.
3. Remove the spring seat and range spring (keys 5
and 8).
Actuator/Diaphragm Disassembly
1. Disassemble the diaphragm by unthreading the
diaphragm retaining nut (key 13) from the diaphragm
bolt (key 15).
