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Fisher
™
V270 Full-Bore Ball Control Valve
Contents
Introduction
1
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Scope of Manual
1
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Description
1
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Specifications
2
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Educational Services
3
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Installation
3
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Maintenance
6
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Packing Maintenance
6
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Stopping Leakage
6
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Replacing Packing
7
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Seal Ring Maintenance
Disassembly
9
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Assembly
11
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Actuator Mounting
13
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Determining Closed Position
14
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Parts Ordering
14
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Parts List
16
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Figure 1. Fisher V270 Control Valve
X1492
Introduction
Scope of Manual
This instruction manual provides installation, operation, maintenance, and parts information for the Fisher V270
Full-Bore Ball control valve (see figure 1). Refer to separate manuals for information concerning the actuator,
positioner, and accessories.
Do not install, operate, or maintain a 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
Emerson sales office
before proceeding.
Description
The Fisher V270 is a three piece, trunnion mounted, full-bore control valve designed with features for optimized
pressure, flow and process control. The V270 comes standard with dual seal construction allowing unidirectional or
bidirectional flow and double block-and-bleed operation. The full-bore ball design presents little or no restriction to
flow at full travel. The V270 construction meets ANSI / NACE MR0175 / ISO 15156 as standard.
Instruction Manual
D104297X012
V270 Valve
September 2018
