INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
Figures 991-D and 991-U
Drawing EAV-7080, 3
” to 20”
Wastewater Vacuum Breaking Valves
TABLE OF CONTENTS
Introduction
….………………………… 1
Description of Operation .....
………… 1
Receiving & Storage .....
……………… 1
Installation ......
…………………………. 1
Valve Construction ......
………………. 1
Start-Up ...
………………………………. 2
Preventive Maintenance ....
………….. 2
Trouble Shooting ...
…………………… 2
Disassembly ....
………………………… 2
Assembly ....
……………………………. 2
Replacement Parts List..
……………….. 3
Warranty
.……………………………….. 3
Assembly Drawing/Parts Location ........ 4
234 Clay Avenue
• Mars, PA 16046 USA
Telephone (724) 776-1020
• Fax (724) 776-1254
Manual Number 220-IOM-022321
