Emerson Fisher CCV-N Instruction Manual

Control valves
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Instruction Manual
D104191X012
Fisher
CCV-N Control Valves
Contents
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Introduction

Scope of Manual

This instruction manual includes installation, maintenance and parts information for NPS 2, 3 and 4 Class 300 CCV-N
fuel gas control valves. These valves are used in gas turbines which meter the fuel gas to the combustion chamber of
the turbine and provide linear flow with the ability to choke very quickly at a low pressure drop.
Refer to separate manuals for instructions covering the actuator and accessories.
Do not install, operate, or maintain CCV-N valves 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
proceeding.
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Figure 1. Fisher NPS 3 CCV-N Section View
Emerson Process Management sales office
CCV-N Valve
September 2016
before

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Table of Contents
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Summary of Contents for Emerson Fisher CCV-N

  • Page 1: Table Of Contents

    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 Process Management sales office before proceeding.
  • Page 2: Specifications

    CCV-N valves are single port, angle-style, and balanced valves with metal seat, seat ring retainer guide, and push-down-to-close valve plug action. Educational Services For information on available courses for Fisher CCV-N fuel gas control valves, as well as a variety of other products, contact: Emerson Process Management...
  • Page 3: Installation

    Emerson Process Management sales office. 1. Before installing the valve, inspect the valve and associated equipment for any damage and any foreign material.
  • Page 4: Maintenance

    Instruction Manual CCV-N Valve September 2016 D104191X012 Maintenance Valve parts are subject to normal wear and must be inspected and replaced as necessary. Inspection and maintenance frequency depends on the severity of service conditions. This section includes instructions for packing maintenance and trim maintenance.
  • Page 5: Replace Packing

    Instruction Manual CCV-N Valve D104191X012 September 2016 Replace Packing WARNING Refer to the WARNING at the beginning of the Maintenance section in this instruction manual 1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the process media from both sides of the valve.
  • Page 6 Personal injury or damage to equipment could occur if improper stud and nut materials or parts are used. Do not operate or assemble this product with stud(s) and nut(s) that are not approved by Emerson/Fisher engineering and/or listed on the serial card provided with this product.
  • Page 7: Trim Maintenance

    Instruction Manual CCV-N Valve D104191X012 September 2016 11. Install new packing and the metal packing box parts according to the appropriate arrangement in figure 2. Place a smooth-edged pipe over the valve stem and gently tap each soft packing part into the packing box. 12.
  • Page 8: Valve Plug Maintenance

    Due to the design requirement of this product, the valve and stem are precision-matched and the stem is not replaceable. If damaged, the valve plug and stem must be replaced as an assembly. Contact Emerson Process Management sales office for parts replacement.
  • Page 9: Assembly

    Instruction Manual CCV-N Valve D104191X012 September 2016 63, 24, 25, and 33) into the plug, as shown in figure 6, view B. Then install the retaining ring (key 26) by inserting one end in the groove and pressing the ring into the groove while turning the plug. Again, be careful not to scratch any surfaces of the ring or plug.
  • Page 10: Parts Ordering

    CAUTION Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Process Management 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.
  • Page 11: Parts List

    D104191X012 September 2016 Parts List Description Seal Retainer Note Groove pin See Parts Kits Contact your Emerson Process Management sales office for Part Valve Stem Ordering information. Groove pin Seat Ring Bonnet Gasket See Parts Kits Spiral-wound Gasket See Parts Kits...
  • Page 12 Instruction Manual CCV-N Valve September 2016 D104191X012 Figure 4. NPS 2 CCV-N Valve Assembly with Key Numbers VIEW A VIEW B VIEW A VIEW B APPLY LUB/SEALANT GE84785...
  • Page 13: D104191X012 September

    Instruction Manual CCV-N Valve D104191X012 September 2016 Figure 5. NPS 3 CCV-N Valve Assembly with Key Numbers VIEW A VIEW B VIEW A VIEW B APPLY LUB/SEALANT GE84772...
  • Page 14 Instruction Manual CCV-N Valve September 2016 D104191X012 Figure 6. NPS 4 CCV-N Valve Assembly with Key Numbers VIEW A VIEW B VIEW A VIEW B APPLY LUB/SEALANT GE84780...
  • Page 15 Instruction Manual CCV-N Valve D104191X012 September 2016 Figure 7. NPS 4 CCV-N Plug Maintenance NEW PIN IN NEW USED PIN HOLE PIN HOLE Figure 8. Insert of Plug Stem Seal Assembly through the Bottom of the Seat Ring Retainer PLUG STEM SEAL ASSEMBLY SEAT RING RETAINER...
  • Page 16 Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher is a mark owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co.

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