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10          IOM-A-ACV-979_679   2115 

EDP# 1917114 

© 2021 Watts

IOM-A-ACV-979_679   2115 

EDP# 1917114 

© 2021 Watts         11

NOTES

Содержание AMES 979GD

Страница 1: ...Float Control Valve 3 Maintenance Schedule 6 Trouble Shooting Guide 6 Valve Disassembly Instructions 8 ACV Schematic 11 Local building or plumbing codes may require modifica tions to the information...

Страница 2: ...ide adequate clearance for valve servicing and maintenance Refer to valve servicing dimensions on next page Avoid installing valves 6 and larger in the vertical position main valve stem horizontal Aut...

Страница 3: ...valve Tighten the fitting when liquid begins to vent See Figure 1 Step 4 Slowly open downstream isolation valve to establish flow through the system Globe Angle Size in 11 4 11 2 2 21 2 3 4 6 8 10 12...

Страница 4: ...too slowly turn the adjustment screw OUT counterclockwise increasing the rate of opening See Figure 2B If the main valve is opening too quickly turn the adjustment screw IN clockwise decreasing the r...

Страница 5: ...ve specification sheets for approximate cover capacity A continuous flow of water from the open port indicates a damaged diaphragm or loose disc diaphragm assembly Disassemble valve and replace diaphr...

Страница 6: ...2 1 2 turns open from full closed position Can be adjusted in field Main Valve will not close Closed isolation valves in pilot system Check isolation valves ensure open Diaphragm is damaged Conduct d...

Страница 7: ...Remove cover nuts and washers 3 Remove the cover If cover is not free to be removed loosen it by tapping upward along its outside edge with a dull cold chisel pic tured above a Large valves may requi...

Страница 8: ...e brush or by using a Mineral Dissolving Solution Inspect parts for wear and replace if necessary 7 Inspect valve seat If seat is not damaged removal is not necessary Valve seats 6 and smaller are thr...

Страница 9: ...r Nuts in a crossing pattern to ensure even distribution Test the Disc and Diaphragm Assembly for smooth travel by following the Freedom of Movement Test procedure in previous section 11 Test the inte...

Страница 10: ...s Steel 10 Diaphragm Washer ASTM A536 65 45 12 Epoxy Coated Ductile Iron 11 Diaphragm Buna N Nitrile 12 Disc Retainer ASTM A536 65 45 12 Epoxy Coated Ductile Iron 13 Seat Disc Buna N Nitrile 14 Spacer...

Страница 11: ...IOM A ACV 979_679 2115 EDP 1917114 2021 Watts 11 NOTES...

Страница 12: ...sts resulting from labor charges delays vandalism negligence fouling caused by foreign material damage from adverse water conditions chemical or any other circumstances over which the Company has no c...

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