Table of Contents
1 Introduction and Safety .................................................................................................................................... 2
1.1 Safety message levels .............................................................................................................................. 2
1.2 User health and safety .............................................................................................................................. 2
2 Transportation and storage .............................................................................................................................. 5
3 Product Description .......................................................................................................................................... 6
3.1 Topworks identification .............................................................................................................................. 6
3.2 Bonnet description..................................................................................................................................... 6
4 Installation.......................................................................................................................................................... 8
4.3 Set the travel stop ................................................................................................................................... 10
5 Operation.......................................................................................................................................................... 11
5.1 Topworks operation ................................................................................................................................. 11
6 Maintenance..................................................................................................................................................... 13
6.1 Precautions ............................................................................................................................................. 13
6.2 Inspection ................................................................................................................................................ 13
6.3 Lubrication requirements......................................................................................................................... 13
6.4 Disassemble the valve ............................................................................................................................ 14
6.6 Change the diaphragm type .................................................................................................................... 16
6.7 Replace the o-rings ................................................................................................................................. 16
7.1 963 PAS plastic bonnet ........................................................................................................................... 19
Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual
Table of Contents
1
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