Instruction Manual
D102136X012
KALREZ™ Packing System
™
for Fisher
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 1.................................
Installation and Maintenance 2...................
Introduction
Sliding‐Stem Valves
KALREZ System - Sliding-Stem Valves
July 2017
Tightening Procedures 3.......................
Other Considerations 4..........................
Parts Ordering 7................................
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for KALREZ valve stem packing
(KVSP) systems. These systems are available for Fisher sliding‐stem valves with 9.5, 12.7, 19.1, 25.4, and 31.8 mm
(3/8, 1/2, 3/4, 1, and 1‐1/4 inch) diameter stems. The system can be used with many sliding‐stem valves as shown in
the Applications section of the Specifications. Refer to appropriate valve and actuator instruction manuals for
necessary information relating to the disassembly and assembly of the valve and actuator.
Do not install, operate, or maintain KALREZ packing systems without being fully trained and qualified in valve,
actuator, and accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is
important to carefully read, understand, and follow all the contents of this manual, including all safety cautions and
warnings. If you have any questions about these instructions, contact your Emerson sales office
Partner before proceeding.
or Local Business
Description
Emerson Automation Solutions offers KALREZ packing systems that you can easily install into your existing valves or
that you can purchase with new valves. The KVSP 500 Series uses Vespel
rings. The KVSP Fire‐Safe Series uses Vespel CR‐6100 backup rings, KALREZ seal rings, and a die‐formed flexible
graphite ring located on top of the KALREZ packing set.
These packing systems help seal your process to conserve valuable fluids, and help protect the environment against
the emission of toxic or polluting liquids and gases. The external live‐loading provides a constant load over the life of
the packing material, which reduces your need for packing box adjustment and maintenance.
If the piping and valve are insulated, do not allow insulation to extend above the yoke boss surface, covering the
KALREZ packing arrangement. Keep the KALREZ packing arrangement exposed to ambient air conditions.
™
CR‐6100 backup rings and KALREZ seal
www.Fisher.com
KALREZ System - Sliding-Stem Valves
July 2017
Table 1. Specifications
Instruction Manual
D102136X012
Applicable Valve Designs
Fisher valves using CL125 through 600,
J easy‐et valves (for example, EAT, EZ, ETR, EWD,
J EH, J HP, J YD, and J YS
etc.),
J A,
(1)
Pressures and Temperatures
Maximum Application Temperature
KVSP 500 Series: 260_C (500_F)
KVSP Fire‐Safe Series: 260_C (500_F)
(2)
Maximum Application Pressure
For Environmental Service: 31 bar (450 psig)
Applications
Valve Stem Diameters:
J 25.4, and J 31.8 mm (3/8, 1/2, 3/4, 1, and 1‐1/4
J 9.5, J 12.7, J 19.1,
inches)
1. For availability of a KALREZ packing system with a specific valve, contact your Emerson sales office or Local Business Partner.
2. The pressure/temperature limits in this manual, in the valve literature, and any applicable code or standard limitation, should not be exceeded.
For Non‐Environmental Service: Pressure is limited to
the maximum valve rating
Also see bulletin 59.1:062, Packing Selection
Guidelines for Sliding‐Stem Valves
Installation and Maintenance
Use these instructions to install KALREZ packing in valves that have standard packing or when inspecting or replacing
KALREZ packing.
WARNING
Avoid personal injury from sudden release of process pressure or uncontrolled movement of parts. Before performing any
installation or maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the
actuator cannot suddenly open or close the valve.
D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure
from both sides of the valve. Drain the process media from both sides of the valve.
D Vent the power actuator loading pressure and relieve any actuator spring precompression.
D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
D The valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the
pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when
loosening the packing box pipe plug.
D Check with your process or safety engineer for any other hazards that may be present from exposure to process media.
If you are installing the packing system in a valve that is still connected to an actuator, remove the actuator from the
valve to provide sufficient space to install the packing assembly. If a spring‐return actuator is used, it is possible that
disconnecting the stem connector will allow the spring to force the actuator to the end of its travel. Be sure the
actuator spring is resting on its travel stop. Refer to the appropriate valve and actuator instruction manuals to remove
the actuator.
Carefully remove the old packing parts from the packing box by using the valve instruction manual procedures. Both
the valve stem surface condition and the packing bore are critical in obtaining a good seal. If the valve stem surface is
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Instruction Manual
D102136X012
KALREZ System - Sliding-Stem Valves
July 2017
scratched, nicked, or worn, replace the valve stem before installing the KALREZ Packing System. Check the condition
of the packing bore and clean or hone it out, as necessary. Refer to the appropriate valve instruction manual to replace
the valve stem.
Figure 1. Belleville Spring Stacking Order
7 SPRINGS
PACKING FOLLOWER
A6642
For key number locations refer to figure 3. Then proceed as follows:
1. The original packing flange studs used for standard packing arrangements should be long enough to accommodate
the KALREZ packing parts. If you determine that the existing studs and nuts should be replaced however, due to
their condition, replace them with new studs and nuts (keys 200 and 212).
2. Complete all valve maintenance before installing the KALREZ packing system into the bonnet.
3. Be careful NOT to position the KVSP packing system adjacent to any lubrication holes in the bonnet which could
compromise its sealing performance.
Note
Ensure that the Belleville springs are stacked properly (see figure 1) and packing box parts are assembled in the correct order (see
figure 3). Packing parts cannot function properly if the Belleville springs or other packing parts are not stacked correctly.
4. KVSP packing systems should be installed as a complete set, NOT AS INDIVIDUAL PIECES OR COMPONENTS.
5. All kits include a single use packet of KRYTOX
™
GPL 206 high performance fluorinated grease to maximize service
life and ease of assembly. KRYTOX lubricants are chemically inert to the chemicals regulated under the U.S. Clean
Air Act, non‐reactive to gaseous and liquid oxygen and chlorine services, with chemical compatibility consistent
with KALREZ and the KVSP Systems.
6. Apply the KRYTOX lubricant liberally to both the I.D. and O.D. surfaces of each packing set component (key 215)
before installing. All exposed surfaces of the packing assembly should be fully covered.
7. Carefully slide the packing down the stem while being careful not to force the packing and damage it on the stem
threads. Use figure 3 to ensure that the packing parts and spring pack are assembled in the correct order.
Tightening Procedures
A modified tightening procedure is recommended for live‐loading the KVSP System to ensure the correct loading force
is used during the life of the packing and to avoid any overcompression of the packing. This procedure also creates
open space within the spring set that allows dynamic movement of the packing system to compensate for any
volumetric changes that occur during thermal cycling.
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KALREZ System - Sliding-Stem Valves
July 2017
Figure 2. KVSP System Tightening Procedure
FLAT CONDITION
COMPRESSED
HEIGHT
Instruction Manual
D102136X012
UNCOMPRESSED
FREE HEIGHT
90AY012600A
B2459
The following tightening procedure will change the final loading force to about 1/2 of a fully compressed disk spring.
1. Hand tighten the gland nuts on the Belleville disk springs and measure the uncompressed or free height as shown in
figure 2.
2. Fully compress the Belleville disk springs alternately and evenly to the flat condition. The flat condition will be
evident by a sharp increase in the applied nut torque. Note that there may appear to be space left between the
springs; this is due to friction between the springs. Measure the compressed height. See figure 2.
3. Back off the disk spring load by 1/3 or 33% of the difference between (1) the free spring height and (2) the fully
compressed spring height.
Other Considerations
When retrofitting an existing packing system or repacking a valve with KALREZ packing that has been in service, check
the condition of the packing bore after you have removed the packing. An easy method for cleaning debris and minor
imperfections from the bore is to use a brake cylinder hone attached to an electric drill. This method will do a good job
of cleaning the packing bore without changing the dimension of the bore.
If any visible pits or defects remain in the packing bore, the bonnet should be replaced.
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Instruction Manual
KALREZ System - Sliding-Stem Valves
D102136X012
easy‐e Packing (see figure 3)
KEY
NUMBER
200
201
211*
212
213 Anti‐Seize Lubricant Not furnished with packing. Use anti‐seize lubricant purchased from any supplier.
215*
215*
216
217
218*
219
* Recommended spare part.
1. Quantity equals 1 for Fire‐Safe.
2. Not used with Fire‐Safe.
DESCRIPTION
Stud, SA‐193‐CL 2
(B8M), Strain Hardened
Packing Flange,
S31600 (316 SST)
Packing Box Ring,
S31600
Packing Nut SA‐194‐8M
Strain
Hardened S31600
Packing Set,
KALREZ/Vespel CR‐6100
Packing Set,
Fire‐Safe
Lantern Ring,
S31600
Spring Pack Assembly
S31600/N07718
Lower Wiper,
PTFE
Spacer,
S31600
9.5 (3/8) 12.7 (1/2) 19.1 (3/4) 25.4 (1) 31.8 (1‐1/4)
PN Qty PN Qty PN Qty PN Qty PN Qty
1E944135222 2 1E944435222 2 1E944935222 2 0V002535222 2
12B6923X012 1 12B6924X012 1 12B6925X012 1 12B6654X012 1 12B6680X012 1
1J873135072 1 1J873235072 1 1J873335072 1 1J873435072 1 1J873535072 1
1E944035252 2 1E944535252 2 1E944635252 2 1A343335252 2 1A368135252 2
24B7042X012 1 24B7042X022 1 24B7042X032 1 24B7042X042 1 24B7042X052 1
24B7043X012 1 24B7043X022 1 24B7043X032 1 24B7043X042 1 24B7043X052 1
22B6943X012 1 22B6944X012 1 0N028435072 2 0U099735072 2
12B6921X062 1 12B6921X072 1 12B6921X082 1 12B6921X092 1 12B6921X102 1
1J872106992 1 1J872206992 1 1J872306992 1 1J872406992 1 1J872506992 1
14B7044X012 3
(1)
14B7045X012 1
STEM SIZE, mm (INCHES)
(2)
14B7046X012 1
(2)
14B7047X012 2
0W08693522
0W08713507
(1)
14B7056X012 2
2
2
July 2017
2
2
(1)
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KALREZ System - Sliding-Stem Valves
July 2017
Figure 3. KALREZ Packing Assembly for easy‐e Valves
2-1/8 YOKE
BOSS
3/8 STEM
2-3/16 YOKE BOSS
1/2 STEM
3-9/16 YOKE BOSS
3/4 STEM
HEX NUT
(KEY 212)
PACKING
FLANGE
(KEY 201)
SPACER
(KEY 219)
Instruction Manual
D102136X012
STUD
(KEY 200)
SPRING
PACK
ASSEMBLY
(KEY 217)
PACKING
SET
(KEY 215)
34B7261‐A
A6297/G1
B2460
5 YOKE BOSS
1 STEM
5 YOKE BOSS
1-1/4 STEM
LOWER WIPER
(KEY 218)
LANTERN
RING
(KEY 216)
PACKING
BOX RING
(KEY 211)
6
Instruction Manual
D102136X012
KALREZ System - Sliding-Stem Valves
July 2017
Parts Ordering
Each valve assembly is assigned a serial number that can be found on the valve body. Refer to this serial number when
contacting your Emerson sales office
parts, refer to this serial number and to the part description and part number from the following parts list. When
ordering replacement parts, refer to the serial number and to the 11‐character part number for each part required
from the following parts list.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions should
not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the
performance of the valve, and could cause personal injury and property damage.
or Local Business Partner for technical assistance. When ordering replacement
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KALREZ System - Sliding-Stem Valves
July 2017
Instruction Manual
D102136X012
Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance
of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fisher and easy-e are marks owned by one of the companies in the Emerson Automation Solutions business division of Emerson Electric Co. Emerson
Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. KALREZ, Vespel, and KRYTOX are marks
owned by E.I. du Pont De Nemours Co. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not
to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
8
E 1995, 2017 Fisher Controls International LLC. All rights reserved.
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