Fisher 8560 User Manual

www.Fisher.com
Fisher
™
8560 Eccentric Disc
Butterfly Control Valve
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 1.................................
Specifications 2...............................
Installation 3..................................
Valve Orientation 5............................
Maintenance 9.................................
Packing Maintenance 12........................
Seal Ring Maintenance for NPS 3 through
12 Only 16.................................
Seal Ring Maintenance for NPS 2 21..............
Disc, Drive Shaft and Bearing Maintenance
for NPS 3 through 12 Only 22.................
Disc, Drive Shaft and Bearing Maintenance
for NPS 2 25................................
Actuator Mounting 26.........................
Parts Ordering 28...............................
Retrofit Kits for ENVIRO‐SEALt Packing 29........
Repair Kits for ENVIRO‐SEAL Packing 29...........
Parts List 29...................................
Figure 1. Fisher 8560 Valve with 1052 Actuator and
DVC6000 Series Digital Valve Controller
W8299
Introduction
Scope of Manual
This instruction manual includes installation, maintenance, and parts information for NPS 2 through 12 8560 Eccentric
Disc Butterfly Control Valves (see figure 1). Refer to separate instruction manuals for information covering the
actuator and accessories.
Do not install, operate, or maintain 8560 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 Emerson sales office
or Local Business Partner before
proceeding.
Description
The seal design of the 8560 eccentric disc high performance butterfly valve provides excellent shutoff capability. The
valve includes PTFE‐filled or graphite packing rings that electrically bond the shaft to the valve body. This valve has a
spline drive shaft end, and soft or metal seal rings for use in a wide variety of applications.
Instruction Manual
D102013X012
8560 Valve
June 2017

Fisher 8560 Specifications

General

Brand	Fisher
Model	8560
Category	Control Unit
Language	English

Summary

Introduction

Scope of Manual

Manual covers installation, maintenance, and parts for specific valve sizes.

Description

Details the 8560 eccentric disc butterfly control valve's features and design.

Specifications

Flow Characteristics

Describes the flow pattern of the valve.

Disc Rotation

Explains the direction and degree of disc rotation.

Flow Direction

Details the preferred flow direction for optimal performance.

Actuator/Valve Action

Describes the field-reversible action of actuators.

Valve Classification

Lists standards met for face-to-face dimensions.

Shaft Diameters

Refers to table for shaft diameter specifications.

Approximate Weights

Refers to table for valve weight information.

ENVIRO-SEAL Packing

Details the optional packing system for sealing and emissions control.

Installation

Valve Orientation

Recommends horizontal shaft orientation during valve installation.

Valve Direction

Explains preferred pressure application for different seal types for optimal performance.

Installing the Valve in the Pipeline

Guides on how to properly install the valve assembly into the pipeline.

Packing Adjustment and Shaft Bonding

Stopping Leakage

Methods to stop leakage by adjusting packing nuts or further maintenance.

Removing the Actuator

Packing Maintenance

Disassembly

Steps for disassembling packing components for maintenance.

Assembly

Steps for reassembling packing components after maintenance.

Seal Ring Maintenance for NPS 3 through 12

Disassembly

Steps for disassembling seal ring components for maintenance.

Assembly

Steps for reassembling seal ring components after maintenance.

Installing PTFE seal rings

Procedure for installing PTFE seal rings.

Installing metal seals

Procedure for installing metal seals.

Installing the retainer ring

Steps for installing the retainer ring and gasket.

Seal Ring Maintenance for NPS 2

Disc, Drive Shaft, and Bearing Maintenance for NPS 3 through 12

Disassembly

Steps for disassembling disc, shaft, and bearing components.

Assembly

Steps for assembling disc, shaft, and bearing components.

Installing the hollow pin and taper pin

Procedure for installing hollow and taper pins.

Disc, Shaft Assembly and Bearing Maintenance for NPS 2

Disassembly

Steps for disassembling disc, shaft, and bearing for NPS 2.

Assembly

Steps for assembling disc, shaft, and bearing for NPS 2.

Actuator Mounting

Parts Ordering

ENVIRO-SEAL Packing Arrangements

Information on retrofit and repair kits for ENVIRO-SEAL packing.

Repair Kits for ENVIRO-SEAL Packing

Lists repair kits for packing components.

Retrofit Kits for ENVIRO-SEAL Packing

Lists retrofit kits for ENVIRO-SEAL packing.