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Introduction and Safety .......................................................................................................... 2
Safety message levels ............................................................................................................ 2
User health and safety ............................................................................................................ 2
Transportation and storage .................................................................................................... 4
Handling and unpacking guidelines ........................................................................................ 4
Storage, disposal, and return requirements ............................................................................ 4
Product Description ................................................................................................................ 5
Topworks identification ........................................................................................................... 5
Bonnet description .................................................................................................................. 5
Valve diaphragm identification ................................................................................................ 5
Installation ............................................................................................................................... 7
Install the valve and topworks ................................................................................................. 7
Tighten the bonnet fasteners .................................................................................................. 7
Fastener torque table for valve body to topworks ................................................................. 8
the travel stop ......................................................................................................................... 9
Operation ............................................................................................................................... 10
Topworks operation .............................................................................................................. 10
Operate the Adjustable Open Stop ....................................................................................... 10
Maintenance ........................................................................................................................... 12
Precautions ........................................................................................................................... 12
Inspection ............................................................................................................................. 12
Lubrication requirements ...................................................................................................... 12
Disassemble the valve .......................................................................................................... 12
Replace the valve diaphragm ................................................................................................ 13
Change the diaphragm type .................................................................................................. 14
Replace the o-rings ............................................................................................................... 15
Parts Listing and Cross-Sectional Drawings ...................................................................... 17
963 PAS plastic bonnet ......................................................................................................... 17
Handwheel Operated Valves (903, 913, 963) Installation, Operation, and Maintenance Manual
Designed and Manufactured by ITT
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