Emerson ACE95Jr Manual de Instruções descarregar pdf (Página 8)

Type ACE95JR

5. Remove the range spring (key 8) and spring seat

(key 5). A lower range spring (key 162) is used for

negative pressure values only.

6. Disassemble the main diaphragm (key 11) by

unthreading the diaphragm retaining nut (key 13)

from the diaphragm bolt (key 15).

7. Remove the upper and lower diaphragm plates

(keys 10 and 48) and the diaphragm (key 11).

[The diaphragm gasket (key 12) sits on top of the

diaphragm.] In cases where the pressure range is

positive, the upper diaphragm plate is larger than

the lower diaphragm plate.

8. Remove the internal body hex-head screws and

lock washers (keys 29 and 28) that attach the

lower actuator case (key 30) to the body (key 18).

9. Remove the lower actuator case (key 30), and the

actuator gasket (key 27).

Cage Disassembly











1. Remove the cage (key 52) from the body

(key 18) by slowly applying low pressure shop

air [approximate 20 psig (1,4 bar)] at the inlet

of the body. Use your hand to safely catch the

cage as it is removed from the body.

2. Remove the pilot valve from the cage (key 52) by

pressing on the poppet (key 42) stem.

3. To unscrew the piston (key 37) from the poppet

(key 42), insert a small drill bit into the cross-drilled

holes on the poppet to turn and loosen. Unthread

the poppet from the piston and remove the rolling

diaphragm (key 38).



When assembling the Type ACE95jr tank blanketing

valve, clean all parts, inspect for unusual wear, lightly

lubricate all O-Rings and the groove that locates the

rolling diaphragm bead. See Figure 6.

Cage Sub-Assembly

1. Install the internal O-Rings (key 16) into the

body (key 18).

2. Place the rolling diaphragm (key 38) over the

threaded portion of the piston (key 37). Use

caution not to place the rolling diaphragm upside

down (refer to Figure 6 detail). Apply Loctite

#222

to the piston threads. Thread the poppet (key 42)

onto the piston. Use soft-jawed pliers to hold the

piston. Insert a small drill bit into the cross-drilled

holes on the poppet (key 42) to turn and tighten.

3. Install the O-Ring (key 39) onto the poppet (key 42).

4. Lightly lubricate the piston (key 37).

5. Place the pilot sub-assembly into the cage (key 52).

See Figure 5.

Main Valve Sub-Assembly

1. Place the spring (key 36) in the body (key 18) cavity.

2. Insert the cage (key 52) and main valve

sub-assembly into the body (key 18) cavity.















3. Press the body (key 18) and cage (key 52)

together to engage the rolling diaphragm bead into

the groove. Press and release the stem. It should

freely move up and down. If it does not, repeat

the procedure to this point to determine the cause.

Diaphragm/Actuator Sub-Assembly

1. Place an O-Ring (key 41) onto the cage (key 52)

and the gasket (key 27) onto the body (key 18).

2. Place the lower actuator case (key 30) onto the

body (key 18).

3. To attach the lower actuator case (key 30) to the

body (key 18), install hex-head screws (key 29)

with lock washers (key 28). Tighten all uniformly.

4. Place an O-Ring (key 14) into the groove of the

diaphragm bolt (key 15).

5. Build the diaphragm sub-assembly with the

diaphragm (key 11) and two diaphragm plates

(keys 10 and 48). Fasten the plates together

with the diaphragm bolt (key 15) and the diaphragm

retaining nut (key 13). Apply Loctite

#222 to the

diaphragm bolt.

1 2 3 4 5 6 7 8 9 10 11 12

Type ACE95JR 1

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Emerson ACE95Jr Manual de Instruções Página 8

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