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The following tables detail the recommended minimum valve servicing dimensions.

          

B

          

          

FLOW

FLOW

FLOW

          

FLOW

Valve Servicing Dimensions

IOM-A-ACV-985_685   2115 

EDP# 1917102 

© 2021 Watts         3

Commissioning Deep Well Pump Control

STEP 1

NOTE: System needs to be filled, pressurized, and ready for flow. 

Pre-set pilots as noted:

Opening and Closing Speed

 – Prior to pump start, actuate manual operator on solenoid to enable diaphragm assembly to stroke 

open and closed. Observing the limit switch stem indicator, monitor rate of opening and closing speed. Adjust accordingly per applica-
tion requirements.  
Note: Cycle diaphragm multiple times to confirm rate of movement and remove excess air trapped within the cover chambers (See 
Figure 1 Below).

To increase the rate of opening/closing, turn the adjustment 
screws on the speed controls OUT, counterclockwise. In decrease 
the rate of opening/closing, turn the adjustment screws on the 
speed controls IN, clockwise.

STEP 2

Prior to pump start, energize the solenoid to confirm connection 
to power source.

STEP 3

De-energize the solenoid prior to initial pump start.

STEP 4 

Energize the solenoid at pump start to close the main valve, 
checking that the main valve closes.

Globe

Angle

Size (in)

2

21/2

3

4

6

8

10

12

14

16

20

24

A (in)

20

22

22

24

32

34

38

44

48

52

56

56

B (in)

20

22

22

25

36

38

40

44

48

50

50

50

Size (in)

2

2

 

1/2

3

4

6

8

10

12

14

16

C (in)

20

22

22

24

32

34

38

44

48

52

D (in)

20

22

22

25

36

38

40

44

48

50

Figure 1 

4-Way Solenoid

Manual  

Operation

Normal  

Operation

Summary of Contents for AMES 985GD

Page 1: ...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 information provided You...

Page 2: ...st be allowed for the valve to react to adjustments and the system to stabilize The objective is to bring the valve into service in a controlled manner to protect the system from damaging over pressur...

Page 3: ...ement and remove excess air trapped within the cover chambers See Figure 1 Below To increase the rate of opening closing turn the adjustment screws on the speed controls OUT counterclockwise In decrea...

Page 4: ...t located on the upper chamber While free flow goes into the lower chamber the Opening speed flow control restricts flow out of the upper cham ber of the main valve If valve opening is too slow turn t...

Page 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...

Page 6: ...Valve will not close Closed isolation valves in pilot system Check isolation valves ensure open Diaphragm is damaged Conduct diaphragm seal test repair and replace if necessary Main valve stem assembl...

Page 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...

Page 8: ...deposits and inspect for excessive wear Remove any mineral build up from other components with wire brush or by using a Mineral Dissolving Solution Inspect parts for wear and replace if necessary 7 I...

Page 9: ...bly for smooth travel by following the Freedom of Movement Test procedure in previous section 11 Test the integrity of the Seat Seal by following the Seat Seal Test procedure in previous section 12 Re...

Page 10: ...and Smaller ASTM A276 302 Stainless Steel 13A Bearing Retaining Ring 4 and Larger ASTM A276 302 Stainless Steel 14 Inner Bearing ASTM A276 304 Stainless Steel 15 O ring Buna N Nitrile 16 O ring Buna...

Page 11: ...IOM A ACV 985_685 2115 EDP 1917102 2021 Watts 11 NOTES...

Page 12: ...Watts USA Backflow T 978 689 6066 F 978 975 8350 AmesFireWater com USA Control Valves T 713 943 0688 F 713 944 9445 AmesFireWater com Canada T 888 208 8927 F 905 481 2316 AmesFireWater ca Latin Ameri...

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