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Step 10 

(IF the main valve comes equipped with a Closing Speed Control, otherwise ignore this step.)

Closing Speed Needle Valve Adjustment: The closing speed needle valve regulates fluid pressure into the main valve cover chamber, 
controlling the valve closing speed. If the downstream pressure fluctuates slightly above the desired set point, turn the adjustment screw 
OUT, counterclockwise, increasing the rate of closing.

Step 11

Actuate the solenoid to close the main valve, checking that the main valve closes.

4          IOM-A-ACV-910-15_610-15   2115 

EDP# 1917036 

© 2021 Watts

IOM-A-ACV-910-15_610-15   2115 

EDP# 11917036 

© 2021 Watts         5

Содержание AMES 910GD-15

Страница 1: ...ng the Pressure Reducing Control 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...

Страница 2: ...and operation without disassembly 3 Install isolation valves upstream and downstream of the main valve 4 Connect solenoid wiring leads to desired switching device using safe standard electrical practi...

Страница 3: ...4 48 52 D in 10 10 12 14 14 16 24 26 28 30 34 40 STEP 4 To ensure proper operation any trapped air will need to be bled off the valve cover during startup If your ACV includes a bleed valve use a flat...

Страница 4: ...ment screw OUT counterclockwise increasing the rate of opening IF recovery of downstream pressure is too quick as indicated in a rapid increase in pressure possibly higher than the desired set point t...

Страница 5: ...id pressure into the main valve cover chamber controlling the valve closing speed If the downstream pressure fluctuates slightly above the desired set point turn the adjustment screw OUT counterclockw...

Страница 6: ...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 diaphragm...

Страница 7: ...djust opening speed control to verify functionality adjust as required Standard setting for open ing speed control is 1 1 2 2 1 2 turns open from full closed position Can be adjusted in field Main Val...

Страница 8: ...move 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 require...

Страница 9: ...rush 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 thread...

Страница 10: ...ts 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 integrit...

Страница 11: ...el 9 Stem Washer ASTM A276 304 Stainless 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 Iro...

Страница 12: ...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 cont...

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