INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
Figures 220-D, 220-DS, 220-U and 220-US
Drawing C- 1146, 2½" to 20"
Lever & Weight Swing Check 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 ...................................... 3
Replacement Parts List...................... 3
Assembly Drawing/Parts Location
.... 4
Warranty ....................................... 5
9025 Marshall Road • Cranberry Township, PA 16066 USA
Telephone (724) 776-1020 • Fax (724) 776-1254
E-mail:
info-ga@vag-group.com
Manual Number 220-IOM-0818R0