Fisher EZ-C Instruction Manual
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Fisher EZ-C Instruction Manual

Cryogenic sliding-stem control valves
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Instruction Manual
Form 5376
August 2006
Design EZ-C, ET-C, and EWT-C Cryogenic
Sliding-Stem Control Valves
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Introduction

Scope of Manual

This instruction manual includes installation,
maintenance, and parts information for Design EZ-C,
ET-C and EWT-C valves (see figure 1). Refer to
separate manuals for instructions covering the
actuator and accessories.
No person may install, operate, or maintain Design
EZ-C, ET-C and EWT-C valves without first D being
fully trained and qualified in valve, actuator, and
accessory installation, operation, and maintenance,
and D carefully reading and understanding the
contents of this manual. If you have any questions
about these instructions, contact your Emerson
Process Managementt sales office before
proceeding.
www.Fisher.com
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EZ-C, ET-C, and EWT-C Valves
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W6370/IL
16
Figure 1. Typical Cryogenic Valve with Extension
16
Bonnet and 585C Series Actuator
17
21
Neither Emersonr, Emerson Process
Management, Fisherr, nor any of their
affiliated entities assumes
responsibility for the selection, use
and maintenance of any product.
Responsibility for the selection, use,
and maintenance of any product
remains with the purchaser and
end-user.

Description

Design EZ-C: globe-style, single-port, unbalanced
valves with integral end connections, post guiding,
metal-to-metal seating, and quick-change trim. They
feature stainless steel construction materials and
fabricated extension bonnets.
Designs ET-C and EWT-C: metal-to-metal seated
globe-style, single-port, cage-guided,
pressure-balanced valves featuring stainless steel
construction materials and fabricated extension
bonnets.
Note

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Summary of Contents for Fisher EZ-C

  • Page 1: Table Of Contents

    No person may install, operate, or maintain Design metal-to-metal seating, and quick-change trim. They EZ-C, ET-C and EWT-C valves without first D being feature stainless steel construction materials and fully trained and qualified in valve, actuator, and fabricated extension bonnets.

  • Page 2: Specifications

    August 2006 Table 1. Specifications Valve Sizes Material Temperature Capability Design EZ-C: J 1-, J 1.5, J 2-, J 3-, and Design EZ-C: −198 to 149_C (−325 to 300_F) J 4-inch Designs ET-C and EWT-C: Design ET-C: J 3-, J 4-, J 6-, and J 8-inch −198 to 66_C (−325 to 150_F)

  • Page 3: Installation

    Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 Table 2. Maximum Allowable Actuator Thrust for Standard Style 3 Bonnet Extension Length MAXIMUM ALLOWABLE STEM LOAD STEM DIAMETER FOR S20910 (XM-19) STEM MATERIAL VALVE SIZE, INCHES Inches 5382 1210 12.7...

  • Page 4: Maintenance

    Process fluids may spray out under conditions. pressure when removing the packing Valves with ENVIRO-SEAL live-loaded packing will hardware or packing rings, or when not require this initial readjustment. See the Fisher loosening the packing box pipe plug.

  • Page 5: Packing Maintenance

    Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 12.7 mm 19.1, 25.4, OR 31.8 mm 9.5 mm (1/2 INCH) (3/8 INCH) (3/4, 1, OR 1-1/4 INCH) STEM 12A7837-A STEM STEM A6745/IL Figure 2. Single PTFE V-Ring Packing Arrangement...

  • Page 6: Replacing Packing

    Replacing Packing 4. When lifting a Design EZ-C bonnet, temporarily install a valve stem locknut on the valve stem. This locknut will prevent the valve plug and stem WARNING assembly from dropping out of the bonnet.
  • Page 7 2. SA193-B8M strain hardened. 3. Hot rolled. Installing the Bonnet 7. For Design EZ-C valves, remove the stem locknut. Separate the valve plug and stem from the 13. Remove the covering protecting the valve body bonnet, and set the parts on a protective surface to cavity and install a new bonnet gasket (key 10), prevent damage to gasket or seating surfaces.

  • Page 8: Trim Maintenance

    The proper bolting procedures in step d. For ENVIRO-SEAL live-loaded packing, 14 include, but are not limited to, refer to the Fisher instruction manual titled: ensuring that bolting threads are clean ENVIRO-SEAL Packing System for Sliding-Stem and evenly tightening the cap screws Valves.

  • Page 9: Design Ez-C Trim Assembly

    However, 35A5717-C/ a used valve plug may be reused with Figure 5. Design EZ-C Valve Stem Torque and a new stem. Pin Replacement Key number locations are shown in figure 8, unless otherwise noted.

  • Page 10: Design Et-C And Ewt-C Trim Disassembly

    Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 Table 5. Design ET-C and EWT-C Valve Stem Torque and Pin Replacement VALVE STEM DIAMETER VALVE STEM DIAMETER TORQUE, MINIMUM TO MAXIMUM DRILL SIZE, INCHES Inches Lbf-ft 40-47 25-35 3/32 12.7...

  • Page 11: Design Et-C And Ewt-C Valve Plug Maintenance

    Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 Design ET-C and EWT-C Valve Plug to select the proper drill size. Drill through the stem using the hole in the valve plug as a guide. Remove Maintenance any chips or burrs and drive in a new pin to lock the assembly.

  • Page 12: Parts Ordering

    Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 Parts Ordering supplied by Emerson Process Management should not, under any Each body-bonnet assembly is assigned a serial circumstances, be used in any Fisher number which can be found on the valve. This same...

  • Page 13: Parts Kits

    EZ-C, ET-C, and EWT-C Valves August 2006 Parts Kits Gasket Kits Includes keys 10, 12, 13, and 25 for Design EZ-C valves. Includes keys 10, 12, 13, and 51 for Designs ET-C and EWT-C valves. VALVE SIZE KIT PART NUMBER...
  • Page 14 Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 ENVIRO-SEAL Packing Retrofit Kits Retrofit kits include parts to convert valves with Stems and packing box constructions that do not existing standard bonnets to the ENVIRO-SEAL meet Fisher stem finish specifications, dimensional packing box construction.
  • Page 15 Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 APPLY LUB APPLY LUB 39B4612/A PTFE PACKING ARRANGEMENT GRAPHITE ULF PACKING ARRANGEMENT A6362/G1/IL Figure 6. ENVIRO-SEALr Packing System...

  • Page 16: Parts List

    Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 44B8565-A/DOC Figure 7. Extension Bonnet Assembly Parts List Description Part Number Packing Flange Stud Packing Flange Nut Single V-Ring Packing Set See following table Note Individual Packing Ring See following table...

  • Page 17: Design Ez-C Valve Body Parts

    Packing 1. Key 6 for double construction contains one extra packing ring for the 9.5 mm (3/8 inch) stem, and one extra lower wiper for all sizes. Discard upon assembly. Design EZ-C Valve Body Parts (figure 8) Description Part Number...
  • Page 18 Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 GASKET DETAIL 16A1943-A/DOC 44B8573-B/DOC Figure 8. Design EZ-C Valve Assembly...
  • Page 19 Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 Key 2* Design EZ-C Equal Percentage (Including Micro-Formt), Linear, and Quick-Opening Valve Plugs PORT VALVE STEM VALVE PLUG MATERIAL DIAMETER CONNECTION VALVE SIZE, VALVE PLUG INCHES STYLE S31600 w/CoCr-A (alloy 6)
  • Page 20 Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 Key 7* Design EZ-C Valve Stem, S20910 (Use W/Group 1 Actuators) STEM DIAMETER VALVE SIZE, INCHES 9.5 mm (3/8 Inch) 12.7 mm (1/2 Inch) 12.7 x 9.5 mm (1/2 x 3/8 Inch) 19.1 mm (3/4 Inch)

  • Page 21: Design Et-C And Ewt-C Valve Body Parts

    Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 Design ET-C and EWT-C Valve Body Description Part Number Spiral Gasket, N06600/graphite Parts (figure 9) 3-inch 1R348299442 4-, 6X4-, 8X4-inch 1R372299442 6-, 8X6-, 12X6-inch 1U508599442 Note Seat Ring Gasket...
  • Page 22 Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 54B8568-C/DOC 54B8568-C/DOC 16A1943-A/DOC 54B8579-B/DOC 54B8568-C/DOC Figure 9. Design ET-C and EWT-C Valve Assembly...
  • Page 23 Instruction Manual Form 5376 EZ-C, ET-C, and EWT-C Valves August 2006 Key 2* Design ET-C and EWT-C Valve Plug SEAT STYLE Metal Composition PORT DIAMETER VALVE SIZE, S31600 w/CoCr-A Seat S31600 Seat INCHES 12.7 mm (1/2 Inch) 19.1 mm (3/4 Inch) 12.7 mm (1/2 Inch)
  • Page 24 August 2006 ENVIRO-SEAL and Fisher are marks owned by Fisher Controls International LLC, a member of the Emerson Process Management business division of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co.

This manual is also suitable for:

Et-cEwt-c

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