Leslie Controls D Series User Manual
CFTIIP-015
Rev.0
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INSTALLATION, OPERAT ING
AND MAINTENANCE INSTRUCTIONS
D SERIES
TABLE OF CONTENTS
GENERAL INFORMATION
TERMS CONCERNING SAFETY
UNPACKING
INSTALLATIONS
VALVE MAINTENANCE
VALVE DISASSEMBLY AND REASSEMBLY
PLUG STEM PINNING
ILLUSTRATION INDEX
Figure 1 – Typical bolting torque sequence
Figure 2 – Exploded dr awing
Figure 3 – Installat ion of ca rbon filled energized seal rin g
Figure 4 – Installation of Grafoil seal ring
Figure 4.1 – Grafoil seal rin g
Figure 5 – Plug stem pin n i n g
Figure 5.1 – Plug
Figure 6 – End to En d dimensions
Figure 7 – Trim types
Figure 7.1 – Single stage Balanced Trim
Figure 7.2 – Two stage Balanced Trim
Figure 7.3 – Standa rd Trim
This document is the property of Circor Flow Technologies India Pvt Limited should not copied or
reproduced in one form or another.
Page 1 of 15
CFTIIP-015
Rev.0
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1 General Information
The following instructions are designed to assist in
unpacking, installing and performing maintenance
as required on Circor D-series control valves.
Product user s and Maintenance personnel should
thoroughly review this bulletin prior to installing,
operating or performing any maintenance on the
valve.
To avoid possible injury to pers onnel or dama ge to
valve parts, WARNING and CAUTION notes must
be strictly followed. Modifying this product,
substituting non-factory parts or us i ng maintenance
procedures other than outlined coul d drastically
affect performance and be hazardo us to personnel
and equipment and may void existing warranties.
WARNING: Standard industry safety practices
must be adhered to when working on this o r any
other process control product. Specifically, personal
protective and lifting devices must be used as
warranted.
2 Terms Concerning Safety
The safety terms DANGER, WARNING,
CAUTION and NOTE are use in these instructions
to highlight particular dangers and/or to provide
additional information on aspects that may not be
readily apparent.
DANGER: indicates that death, severe
personal injury and/or substantial pr operty
damage will occur if proper precautions are
not taken.
WARNING: indicates that death, several
personal injury and/or substantial pr operty
damage can occur if proper precautions are not
taken.
CAUTION: indicates that minor personal
injury and/or property damage can occur if proper
precautions are not taken.
NOTE: indicates and provides additional technical
inform ation, which m ay not be very obv ious even
to qualified personnel
.
3 Unpacking
1. While unpacking the valve, check the packing
list against materials received. Lists describing
valve and accessories are in each
shipping container.
2. When lifting the valve from shipping container,
use the lifting lugs attached to the bonnet bolting.
Take care to position lifting straps to avoid damage
to the tubing and mounted accessories.
WARNING: When lifting a valve using the
lifting lugs, be aware that the center of gravity may
be above the lifting poi nt. Therefore, support must
be given t o prevent the a ctuator from rotating.
Failure to do so can cause serious injury to
personnel, damage to the valve or nearby
equipment.
3. Contact your shipper immediately if there is
shipping damage.
4. Should any problem aris e, contact your Circor
representative.
This document is the property of Circor Flow Technologies India Pvt Limited should not copied or
reproduced in one form or another.
Page 2 of 15
CFTIIP-015
SIZE
(in)
150 ~ 600
0.75 6 152
900 ~ 1500
0.875 8 220
150 ~ 600
0.875 8 233
900 ~ 1500
1.25 8 583
150 ~ 600
0.875 8 307
900 ~ 1500
1.5 8 922
150 ~ 600
1
12
391
900
1.25
12
856
1500
1.75 8 1798
150 ~ 600
1
12
573
900
1.75 8 2631
1500
1.625
12
1629
150
1 8 879
300
1
12
586
600
1.25
16
550
150
1
12
873
300
1.25
12
1091
600
1.5
16
982
150
1.25
12
1605
300
1.5
12
1926
600
1.75
16
1685
Rev.0
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4 Installations
1. Before installing the valve, clean the line of dirt,
welding chips, scale or other foreign material.
2. Whenev er possible, the valve should be installed
in an upright position. Vertical installation permits
easier valve maintenance.
3. Be sure to provide proper overhead clearance for
the actuator to allow for disassembly of the plug
from the valve body
4. Double-check flow direction to be sure the
valve is installed correctly. Flow direction is
indicated by the arrow attached to the body.
5. If welding the valve into the line, use extreme
care to avoid excess heat buildup in the valve.
6. Connect t he air supply and instrument s ignal
lines. Throttling control valves are equipped with a
valve positioner. Refer to the appropriate positioner
bulletin for connecti ons, maximum air supplies, and
maintenance instructions.
4.1 Quick-check
Prior to start-up, check the control valve by
following these steps:
1. Stroke the valve and obser ve the plug posit ion
indicator on the stem clamp compared to the stroke
indicator plate. The plug should change position in
a smooth, linear fashio n.
NOTE: Due to excessive friction, graphite packing
can cause the plug stem to move in a jerky fashion.
2. Check fo r full stroke by making appropriate
instrument s ignal change.
3. Check all air connections for leaks.
4. Check pack ing box bolting for the correc t
adjustment.
CAUTION: Do not over tighten
packing. This can cause excessive packing
wear and high stem friction that may impede
plug move ment.
5. Make sure the valve fails in the correct
direction in case of air failure. This is done
by turning off the air supply and observing
the failure direction.
6. After a temperature excursion has
occurred, bonnet flange bolting s hould be retorqued to ensure bonnet gaskets do no t leak.
(Refer table 1)
Table 1
SIZE
OF THE
VALVE
2"
3"
4"
6"
8"
10"
12"
16"
CLASS
OF
THE
NUT
NO.
OF
NUTS
TORQUE
Nm
This document is the property of Circor Flow Technologies India Pvt Limited should not copied or
reproduced in one form or another.
Page 3 of 15
CFTIIP-015
Rev.0
__________________________________________________________________________________
Typical Bolting torque sequence
Figure 1
This document is the property of Circor Flow Technologies India Pvt Limited should not copied or
reproduced in one form or another.
Page 4 of 15
CFTIIP-015
Rev.0
__________________________________________________________________________________
5 Valve Maintenance
At least once every six months, check for
proper operation by following the
preventative maintenance steps outlined
below. These steps can be performed while
the valve is in-line and, in some cases
without interrupting service. If an internal
problem i s s us pected, refer to the “Valve
Disassembly and Reassembly” section.
1. Look for signs of gasket leakage through
the end flanges and bonnet. Re-torque flange
and bonnet bol ting (if r equired).
2. Check for fluid leakage to the atmosphere
through the body drain pl ug, if applicable.
3. Examine the valve for damage caused by
corrosive fumes or process drippings.
4. Clean valve and repaint areas of severe
oxidation.
5. Check pack ing box bolting for proper
tightness.
6. If the valve is supplied with a lubricator
fitting, check l ubricant supply and add
lubricant if necessary.
7. If poss ible, stroke the valve and check for
smooth, ful l-stroke ope rat i on . Unsteady stem
movement could indicate an internal valve
problem.
NOTE: Due to excessive friction, graphite
packing can cause the plug stem to move in a
jerky fashion.
WARNING: Keep hands, hair and
clothing away from all moving parts when
operating the valve. Failure to do so can
cause serious injury.
8. Ensure all accessories, brackets and
bolting is securely fastened.
9. If possible, remove air s upply and observe
actuator for correct fail-safe action.
10. Clean any dirt and other foreign material
from the pl ug stem.
11. If an ai r filter is supplied, check and
replace cartridge if necessary.
This document is the property of Circor Flow Technologies India Pvt Limited should not copied or
reproduced in one form or another.
Page 5 of 15
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