Emerson Fisher SS-263 Instruction Manual

Volume booster
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Instruction Manual
D103542X012
Fisher
SS-263 Volume Booster
Contents
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Introduction

Scope of Manual

This instruction manual provides installation, operation, maintenance, and parts information for the SS-263 volume
booster (figure 1). Refer to separate instruction manuals for information regarding the valve body, actuator, and other
accessories.
Do not install, operate, or maintain an SS-263 volume booster 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

Description

The SS-263 volume booster is used exclusively in Fisher Optimized Digital Valve (ODV) packages. The booster
amplifies the output signal from the FIELDVUE
actuators. It has fixed deadband and incorporates soft-seat construction for use with the Fisher 377 Trip Valve.
The booster features dynamically stabilized trim and integral bypass restriction for use with the digital valve controller.
The SS-263 volume booster delivers high-volume output for fast stroking speeds when responding to large input
signal changes. However, it also delivers smooth, stable, low-volume output when responding to small input signal
changes. This allows stable, accurate throttling control which is often necessary during the startup or commissioning
of process control equipment.
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Figure 1. Fisher SS-263 Volume Booster
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12
X0206
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digital valve controller to increase the stroking speed of pneumatic
SS-263 Volume Booster
Emerson sales office
before proceeding.
September 2019

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  Summary of Contents for Emerson Fisher SS-263

  • Page 1: Table Of Contents

    ™ Contents Figure 1. Fisher SS-263 Volume Booster Introduction ....... . .
  • Page 2: Educational Services

    1. The pressure/temperature limits in this document, and any applicable code or standard limitation should not be exceeded. 2. Consult factory for additional sizes. Educational Services For information on available courses for Fisher SS-263 volume booster, as well as a variety of other products, contact: Emerson Automation Solutions Educational Services - Registration Phone: 1-641-754-3771 or 1-800-338-8158 E-mail: education@emerson.com...
  • Page 3: Installation

    Instruction Manual SS-263 Volume Booster D103542X012 September 2019 Figure 2. Example Nameplate Installation WARNING Always wear protective clothing, gloves, and eyewear when performing any installation procedures to avoid personal injury. System damage may result if a volume booster is installed in a way that it can be physically damaged. Personal injury or system damage may result when service conditions exceed booster or other equipment ratings.
  • Page 4 Instruction Manual SS-263 Volume Booster September 2019 D103542X012 Figure 3. Volume Booster Sectional View INPUT SIGNAL DIAPHRAGM BYPASS RESTRICTION ASSEMBLY ADJUSTING SCREW BYPASS RESTRICTION NOISE ATTENUATING TRIM EXHAUST INPUT DIAPHRAGM PASSAGES FEEDBACK DIAPHRAGM 3 IN 1 CONNECTION OUTPUT TO ACTUATOR SUPPLY PORT MOUNTING ADAPTOR...
  • Page 5: Mounting

    Instruction Manual SS-263 Volume Booster D103542X012 September 2019 Mounting The volume booster is mounted to the actuator using the provided mounting adaptor (figure 3) that attaches to the top or bottom of the piston cylinder using a 1 NPT or 1­1/4 NPT connection and to the SS­263 using a flange­type connection.
  • Page 6: Exhaust Passages

    Instruction Manual SS-263 Volume Booster September 2019 D103542X012 Exhaust Passages Exhaust to the atmosphere is through exhaust passages located on the perimeter of the diaphragm spacer assembly. Keep the exhaust passages free of any obstructions or foreign materials that might clog them. Operating Information Proper installation of the SS-263 and adjustment of the bypass restriction and tuning of the digital valve controller are required for stable actuator performance.
  • Page 7: Diaphragm Assembly Replacement

    Instruction Manual SS-263 Volume Booster D103542X012 September 2019 Diaphragm Assembly Replacement CAUTION Key numbers refer to figures 4 and 6. Figure 4. Diaphragm Assembly Drawing GE47590-A 1. Remove the six cap screws (key 10) from the perimeter of the spring case assembly (key 3), and lift off the assembly, taking care you do not lose the upper spring (key 6).
  • Page 8: Valve Assembly Replacement

    Instruction Manual SS-263 Volume Booster September 2019 D103542X012 Valve Assembly Replacement For key numbers refer to figures 5 and 6. Figure 5. Valve Assembly Drawing APPLY THREAD LOCKING ADHESIVE (MILD STRENGTH) TO THREAD WHEN REPLACING INDIVIDUAL COMPONENTS APPLY LUB/SEALANT GE476000-A 1.
  • Page 9: Parts Ordering

    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 instrument, because they may void your warranty, might adversely affect the performance of the valve, and could cause personal injury and property damage.
  • Page 10 Instruction Manual SS-263 Volume Booster September 2019 D103542X012 Figure 6. Volume Booster Assembly Drawing GE49000-A APPLY LUB/SEALANT...
  • Page 11 Instruction Manual SS-263 Volume Booster D103542X012 September 2019 Figure 7. Volume Booster Assembly with Mounting Adaptor GE56173-A...
  • Page 12: Parts Kits

    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 Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co.