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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
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