Instruction Manual Form 5305 December 1999
ENVIRO-SEAL System – Rotary Valves
ENVIRO-SEALR Packing System for Vee-BallR, ediscR and other Rotary Valves Contents Introduction
............................... 1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation
................................. Removing the Actuator . . . . . . . . . . . . . . . . . . . . . . . Installing an ENVIRO-SEAL Packing System . . . . Other Considerations . . . . . . . . . . . . . . . . . . . . . . . . .
2 2 2 6
Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
Parts Kits
.................................. 7 Retrofit Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 W5882–1/IL
Introduction
Figure 1. Typical ENVIRO-SEAL Rotary Packing System
Scope of Manual
Description Fisher Controls offers packing systems with exceptional sealing capabilities that you can easily install in existing valves or that you can purchase with new valves. These systems help you conserve valuable process fluid and protect the environment against the emission of toxic or hazardous pollutants. The external live-loading provides a constant load over the life of the packing material, which reduces the need for packing box adjustment and maintenance. The system design, coupled with very smooth shaft finishes and spring-loading of the packing, provides longer service with very low maintenance.
D101643X012
This instruction manual includes installation and parts information for ENVIRO-SEAL live-loaded packing systems (see figure 1). These systems are available for Fisher rotary valves with 1/2 through 3-1/2 inch (12.7 through 88.9 mm) shaft diameters. The system can be used with many rotary valves, as shown in the the Specifications table and in table 5. Refer to appropriate valve and actuator instruction manuals for necessary information relating to the disassembly and assembly of the valve and actuator. ENVIRO-SEAL packing systems, for Vee-Ball, edisc and other rotary valves, utilize a Belleville (coned-disk) spring system. Only persons qualified through training or experience should install, operate, or maintain the ENVIRO-SEAL packing system, valve, actuator, and accessories. If you have any questions about instructions in this manual, contact your Fisher Controls sales office or sales representative before proceeding.