Fisher-Rosemount 3024S, Инструкция по эксплуатации

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Design 3024S
4. When removing the diaphragm and actuator springs
perform one of the following procedures as appropriate:
For a Type 3024S Air-To-Open actuator
(figure 7 & 10):
a. Lift off the upper diaphragm casing (key 16) and re-
move the springs (key 15).
b. Using a strap wrench or soft-jawed vice an the actuator
stem (key 8), remove the hex nut (key 14).
c. Remove the diaphragm plate (key 13), diaphragm (key
11), O-Ring (key 12), pressure plate (key 10) and the
ring halves (key 9).
For a Type 3024S Air-To-Close actuator
(figure 6 & 9) :
a. Lift off the upper diaphragm casing (key 16).
b. Using a strap wrench or soft-jawed vice an the actuator
stem (key 8), remove the hex nut (key 14).
c. Remove the pressure plate (key 10), O-Ring (key 12),
diaphragm (key 11) , diaphragm plate (key 13) and the
ring halves (key 9).
d. Remove the springs (key 15).
1. Carefully slide the actuator stem (key 8) out the bottom
of the lower diaphragm casing (key 1) and set it on a
protective surface to prevent damage to the O-ring
sealing surface.
2. Remove the bellow (key 31), if used.
3. Unscrew the cheese head screws (key 7), then remove
the bushing (key 6).
4. With the actuator disassembled, inspect all parts for
excessive wear and replace as necessary.
Assembly
This procedure assumes that the actuator is completely
disassembled. If it is not, start the instructions at the
appropriate step.
For a Type 3024S Air-To-Open & Air-To-Close
actuator :
1. Before starting assembly, apply Lubriplate MAG-1 lubri-
cant or equivalent to the O-ring (in the bushing key 6 and
key 12). Install the new bushing (key 6) and assemble
with the cheese head screws (key 7) onto the lower
diaphragm casing (key 1). Use a torque of 0.4 N.m (0.25
lbf.ft)
2. Carefully slide the actuator stem (key 8) down through
the bushing (key 6) .
3. When installing the diaphragm and actuator springs
perform one of the following procedures as appropriate:
For a Type 3024S Air-To-Open:
a. Assemble the ring halves (key 9), pressure plate (key
10), O-Ring (Key 12), diaphragm (Key 11) and dia-
phragm plate (key 13) as shown in figure 7 or 10.
b. Apply Loctite 271 or equivalent to the actuator stem travel
stop thread and tighten the travel stop as follows: Sizes
GA 1.21/1.31 tighten to 37 N.m (28 lbf.ft), size GA 1.41
tighten to 90 N.m (66 lbf.ft).
c. Position the actuator springs (key 15) symmetrical on
the diaphragm plate (key 13) as shown in figure 3.
For a Type 3024S Air-To-Close:
a. Assemble the ring halves (key 9), pressure plate (key
10), O-Ring (Key 12), diaphragm (Key 11) and dia-
phragm plate (key 13) as shown in figure 6 or 9.
b. Apply Loctite or equivalent to the actuator stem travel
stop thread and tighten the travel stop as follows: Sizes
GA 1.21/1.31 tighten to 37 N.m (28 lbf.ft), size GA 1.41
tighten to 90 N.m (66 lbf.ft).
c. Position the actuator springs (key 15) symmetrical on
the diaphragm plate (key 13) as shown in figure 3.
Overtightening the diaphragm cap screws
and nuts can damage the diaphragm. Do not
exceed a torque of 11N.m (8 lbf.ft) for Size GA
1.21 and 16N.m (12lb.ft_ for sizes GA 1.31 &
1.41.
For a Type 3024S Air-To-Close & Air-to-Open:
4. Install the upper diaphragm casing (key 16) using the
long cap screws (key 21) and hex nuts (key 20) first.
Then secure with cap-screws (key 19) and hex nuts (key
20). Be sure the supply connection is located directly
above the vent in the lower diaphragm. Fit the plastic
hose (key 22) over the cap screws (key 21).
Note
Be sure to use the long cap screws (key 21),
first installing them on the opposite sides of
the diaphragm casing. Tighten them evenly,
using a cisscross pattern to ensure a proper
seal.
5. Mount the actuator on the valve in accordance with the
Installation procedures.
CAUTION CAUTION
CAUTION CAUTION
CAUTION