INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
3” and 4” Figure 983-D
Combination Air Valve with Surge Check
(Anti-Slam Device)
SECTION 1
– Figure 983-D Combination Air Valves with Surge Check
Instructions
SECTION 2
– Figure 930 Air & Vacuum Valve Instructions
SECTION 3
– Figure 905 Air Release Valve Instructions
SECTION 4
– Figure F284-D Surge Check Instructions
234 Clay Avenue • Mars, PA 16046 USA
Telephone (724) 776-
1020 • Fax (724) 776-1254
Manual Number IOM 983.01 3&4inch 082622
