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Instruction Manual
D104783X012
™
Fisher
V260 and V270 Buried Service
Contents
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Introduction
Scope of Manual
This instruction manual provides installation, operation, maintenance, and parts information for the Fisher V260 and
V270 Buried Service (see figure 1). Refer to separate manuals for information concerning the valve, actuator,
positioner, and accessories.
Do not install, operate, or maintain a V260 or V270 valve 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 Fisher V260 and V270 Buried Service construction incorporates a shaft extension from the actuator to valve
designed only to transfer the torque required to operate the valve. When installed the Buried Service construction can
provide up to a -25 dBA noise reduction with no impact on flow
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Emerson sales office
before proceeding.
Figure 1. Fisher Buried Service with V260 Valve
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X2061
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Buried Service
October 2024
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Table of Contents
Related Manuals for Emerson Fisher V260
Summary of Contents for Emerson Fisher V260
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Page 1: Table Of Contents
Description The Fisher V260 and V270 Buried Service construction incorporates a shaft extension from the actuator to valve designed only to transfer the torque required to operate the valve. When installed the Buried Service construction can provide up to a -25 dBA noise reduction with no impact on flow... -
Page 2: Specifications
Instruction Manual Buried Service October 2024 D104783X012 Specifications Valve Body Size and End Connection Styles Flow Coefficients V260: NPS J 6, J 8, J 10, J 12, J 16, J 20, and See Fisher Catalog 12 J 24 flanged valves with CL150, CL300, or CL600 Shutoff Classification raised-face flanges compatible with ASME B16.5 V270: NPS J 6, J 8, J 10, J 12, J 14, J 16, J 20,... -
Page 3: Educational Services
Instruction Manual Buried Service D104783X012 October 2024 Educational Services Emerson Educational Services Phone: 1-800-338-8158 E-mail: education@emerson.com emerson.com/mytraining Installation WARNING D To avoid personal injury, always wear protective gloves, clothing, and eyewear when performing any installation operations. D To avoid personal injury or property damage resulting from the bursting of pressure retaining parts, be certain the service conditions do not exceed the limits given in this manual. - Page 4 Instruction Manual Buried Service October 2024 D104783X012 Table 2. V260 Buried Service Extension Assembly (with Standard 8-Foot Extension) Approximate Weights APPROXIMATE WEIGHT with Bettis Actuator, kg VALVE SIZE, KEYWAY CLASS DIAMETER 150-600 - - - 150-600 - - - 150-600 1008 1021 - - -...
- Page 5 Instruction Manual Buried Service D104783X012 October 2024 Table 3. V270 Buried Service Extension Assembly (with Standard 8-Foot Extension) Approximate Weights APPROXIMATE WEIGHT with Bettis Actuator, kg VALVE SIZE, KEYWAY CLASS DIAMETER - - - - - - - - - 1054 1066 1011...
- Page 6 Instruction Manual Buried Service October 2024 D104783X012 Key number locations are shown in figures 5 and 6, unless otherwise noted. Throughout this manual, the component key number will be identified for clarity. 1. For the valve assembly, please reference Instruction Manual for V260 (D102178X012) or V270 (D104297X012). After valve assembly, orient the valve body with the shaft horizontal and key positioned toward the top of the shaft.
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Page 7: Actuator Mounting
Instruction Manual Buried Service D104783X012 October 2024 Actuator Mounting After the stem extension assembly (key 64) is installed, insert actuator key (key 69) into key slot into the actuator end of stem extension assembly. Connect with Bettis actuator, fasten cap screws and washers (key 66 and 67) according to the torque values listed in table 4 and 5. - Page 8 Instruction Manual Buried Service October 2024 D104783X012 Table 4. Torque Values without Adaptor Plate STEM EXTENSION HOUSING STEM EXTENSION HOUSING TO ACTUATOR TO PACKING BOX HOUSING VALVE BETTIS CLASS Torque Torque SIZE, NPS ACTUATOR Screw Size, Bolting Screw Size, Bolting Material Material N•m...
- Page 9 Instruction Manual Buried Service D104783X012 October 2024 Table 5. Torque Values with Adaptor Plate STEM EXTENSION HOUSING TO ACTUATOR PLATE ADAPTOR PLATE TO ACTUATOR VALVE BETTIS Torque Torque CLASS Screw Size, Bolting Screw Size, Bolting SIZE, NPS ACTUATOR Material Material N•m ft•lbf N•m...
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Page 10: Maintenance
Instruction Manual Buried Service October 2024 D104783X012 Maintenance Valve parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection and replacement depends upon the severity of service conditions. WARNING Avoid personal injury or equipment damage from sudden release of process pressure or uncontrolled movement of parts. Before performing any maintenance operations: D Do not remove the actuator from the valve while the valve is still pressurized. -
Page 11: Replacing Packing
Instruction Manual Buried Service D104783X012 October 2024 a. For PTFE packing, loosen each packing flange nut one half turn (180 of rotation). 2. The target load of 85% compression has now been reached. If leakage continues, replace the packing components and inspect the packing box housing bore and valve drive shaft for damage as described in the following procedures. -
Page 12: Packing Assembly
Instruction Manual Buried Service October 2024 D104783X012 2. Remove line bolting, remove the control valve from the pipeline, and place the actuator/extension assembly/valve assembly on a flat surface. Position and secure the valve assembly with the shaft in the horizontal orientation. 3. -
Page 13: Parts Ordering
WARNING Use only genuine Fisher replacement parts. Components that are not supplied by Emerson 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 14 Instruction Manual Buried Service October 2024 D104783X012 Figure 5. Fisher V260 Buried Service Assembly VIEW A VIEW A VIEW B SCALE 1:1.25 SCALE 1:1.25 VIEW B BEFORE STEM EXTENSION ASSEMBLY INSTALLED WITH ADAPTOR PLATE GG87626 NOTE: APPLY LUBRICANT AND SEE V260 INSTRUCTION MANUAL (D102178X012)
- Page 15 Instruction Manual Buried Service D104783X012 October 2024 Figure 6. Fisher V270 Buried Service Assembly VIEW A VIEW A VIEW B SCALE 1:1.25 SCALE 1:1.25 BEFORE STEM EXTENSION ASSEMBLY INSTALLED WITH ADAPTOR PLATE VIEW B GG87627 NOTE: APPLY LUBRICANT AND SEE V270 INSTRUCTION MANUAL (D104297X012) SEE V270 INSTRUCTION MANUAL (D104297X012)
- Page 16 Fisher and ENVIRO-SEAL are marks owned by one of the companies in the Emerson business unit of Emerson Electric Co. Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co.
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