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Standard Components

Operation

The Solenoid On-Off ACV is designed to open fully or close drip-
tight as commanded by the 3-Way Solenoid Pilot. The Solenoid 
Pilot commands the routing of fluid and pressure into and out of 
the cover chamber of the main valve. When the Solenoid Pilot con-
nects the cover chamber of the valve to upstream pressure, the 
valve closes drip tight. When the Solenoid Pilot connects the cover 
chamber of the valve to downstream pressure (dry drain) or atmo-
sphere (wet drain), the valve opens fully. Engaging the Solenoid 
Manual operator simulates power to the solenoid, manually con-
trolling the main valve. Disengaging the Solenoid Manual operator 
returns the valve to electrical on-off service. 

Specify voltage and MAIN VALVE actuation (energize to open 
or close), and "wet" or "dry" drain PRIOR to ordering.

1

X

X

X

X

Y/FC

(ACS)

P/L

2

CLOSES VALVE

OPENS VALVE

FLOW

(AOS)

3

3

1.  Prior to installation, flush line to remove debris.

2.  Install valve so the flow arrow matches flow through the line, and gauges to monitor valve inlet and outlet pressures. A Position 

Indicator can be installed to provide visual indication of valve position and operation without disassembly.

3.  Install isolation valves upstream and downstream of the main valve.

4.  Provide 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). Automatic Control Valves (ACVs) are designed for horizon-
tal in-line installation, with the cover facing up (main valve stem vertical). Slow operation or premature stem and guide wear may 
occur if valve is not installed according to factory recommendations. Consult factory for detailed engineering review prior to order-
ing if valve is to be installed other than horizontally in-line.

5.  If valve is equipped with a pilot control system, extra precautions should be made during installation to protect the piping circuit 

from damage. Only remove the pilot control system from the valve if necessary. Tubing and fittings should be kept clean and 
replaced exactly as removed. Consult appropriate hydraulic schematic to ensure proper re-assembly.

6.  Connect solenoid wiring leads to desired switching device, using safe, standard electrical practices.

7.  After installation, vent entrapped air from valve cover and pilot system by following instructions on Technical Bulletin.

Start-up of an automatic control valve requires that proper procedures be followed. Time must 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-pressure.

1 – Main Valve (905GD - Single Chamber)
2 – 3-Way Solenoid
X – Isolation Cocks

Installation

930GD-01 (Globe) Solenoid (On-Off) Control Valve with Hydraulic 
Check Feature (4" and Smaller)

2          IOM-A-ACV-930-01_630-01   2115 

EDP# 1917084 

© 2021 Watts

Summary of Contents for AMES 930GD-01

Page 1: ...2 Setting the Solenoid 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...

Page 2: ...d installing valves 6 and larger in the vertical position main valve stem horizontal Automatic Control Valves ACVs are designed for horizon tal in line installation with the cover facing up main valve...

Page 3: ...valve does not include a bleed valve bleed air by loosen ing a fitting on the valve or a plug at the highest point of the valve assembly STEP 5 Pressure the line by opening the upstream isolation val...

Page 4: ...e main valve checking that the main valve opens STEP 8 Actuate either electrically or manually the solenoid to closed position to check that the main valve closes STEP 9 Closing Speed Needle Valve Adj...

Page 5: ...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...

Page 6: ...ion valves ensure open Diaphragm is damaged Conduct diaphragm seal test repair and replace if necessary Main valve stem assembly corroded damaged Inspect stem assembly clean replace if necessary Block...

Page 7: ...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...

Page 8: ...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...

Page 9: ...uts 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 integri...

Page 10: ...ess 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 Spac...

Page 11: ...IOM A ACV 930 01_630 01 2115 EDP 1917084 2021 Watts 11 NOTES...

Page 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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