Emerson Fisher CT88, Инструкция по эксплуатации

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2. Place the seat ring (key 3) onto the step inside the
body carefully, make sure the O-ring (key 2) does
not move.
3. Place the cage (key 18) into the groove of the
seat ring (key 3).
4. Lightly lubricate O-ring (key 7) and 2 sliding rings
(key 9), and install the O-ring and sliding rings into
the grooves of the sleeve (key 6) in turn.
5. Lightly lubricate O-ring (key 10) and place it into
the groove at the top of the sleeve (key 6).
6. Insert the trim assembly (key 4 and other attached
components) through the sleeve/sliding ring/
O-ring assembly (keys 6, 7 and 9) from top of the
sleeve, make sure the O-ring (key 7) is not moved
or damaged.
7. Lightly lubricate O-ring (key 11) and place into
the corner of the body/bonnet interface (keys 1
and 12).
8. Insert trim assembly (key 4 and other attached
components) and sleeve/sliding/O-ring assembly
(keys 6, 7 and 9) into body (key 1), press until
piston (key 4) contacts seat ring (key 3) and
sleeve (key 6) contacts cage (key 18).
9. Carefully align the bonnet (key 12) on to body
(key 1) into the correct orientation.
Note
The sense line hole in the lower diaphragm
casing (key 54) should align with the sense
line hole in the body (key 1).
10. Press bonnet (key 12) down until it contacts the
body (key 1).
11. Apply the lubricant to thread of bolts (key 13), then
bolt together the bonnet and body using washers
(key 8 for NPS 2 / DN 50 and key 26 for the NPS 3
and 4 / DN 80 and 100 body). Tighten bolts using
a multi-pass, criss-cross pattern by using a torque
wrench. Torque values are listed in Table 4.
Parts Ordering
When corresponding with your local Sales Office
about this regulator, include the type number and all
other pertinent information stamped on the nameplate.
Specify the part name when ordering new parts
from the following parts list. Separate repair part kits
containing all recommended elastomer spare parts
are available.
Table 2.
Troubleshooting
PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION
Backpressure regulator is not working
Backpressure regulator is undersized or oversized Review sizing
Damaged diaphragm Replace diaphragm
Restrictor or control line is blocked Check restrictor and control line, clean debris
Backpressure regulator inlet pressure increases
Application flow rate exceeds product's advertised capacity Review sizing
O-ring in disk assembly damaged Replace O-ring
Debris caught in between disk and seat ring Remove debris
Backpressure regulator lock-up
pressure decreases
Damaged, deformed or worn out diaphragm Replace diaphragm
Deformed or worn out disk or seat ring Replace disk or seat ring
Damaged disk assembly O-ring Replace O-ring
Debris caught in between disk and seat ring Clean or replace disk
Backpressure regulator inlet pressure fluctuates Actual flow rate much lower than normal
Review sizing or check upstream equipment when
upstream pressure fluctuates
Table 3.
Spare Parts Kits
(1)
BODY SIZE
SPARE PART NUMBER
NPS DN
2 50 RCT88X00F22
3 80 RCT88X00F32
4 100 RCT88X00F42
1. Includes diaphragm, O-rings, stem guide, ring sliding, seat, etc.
8
Type CT88