AMES 682GD Manual Download Page 11 | Manualshive

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10 IOM-A-ACV-982_682 2115

EDP# 1917092

© 2021 Watts

IOM-A-ACV-982_682 2115

EDP# 1917092

© 2021 Watts 11

NOTES

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Summary of Contents for 682GD

Page 1: ...ioning the Booster Pump 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 provided You are required to consult the local building and plumbing codes prior to installation If the information provided here is not consistent with local building or plumbing cod...

Page 2: ...rol Valves ACVs are designed for horizontal in line instal lation 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 ordering if valve is to be installed other than horizontally in line 5 If valve is equipped with a pilot c...

Page 3: ... the manual operator is turn counter clockwise to a full OUT position See Figure 1 STEP 2 Energize the solenoid to check actuation and to confirm connec tion to power source STEP 3 De energize the solenoid prior to initial pump start STEP 4 Loosen a tube fitting or cover plug at the main valve to allow air to vent during start up STEP 5 Energize the solenoid at pump start to open the main valve ch...

Page 4: ...nergize solenoid to check that the main valve closes STEP 13 At valve closure booster pump will stop Adjust limit switch collar to final position to ensure positive actuation of limit switch elec trical contact if necessary by sliding up down to location See Figure 4 STEP 6 Opening Speed Flow Control Adjustment The Opening speed needle valve restricts flow out of the cover of the main valve If the...

Page 5: ...lve 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 or tighten disc diaphragm assembly Test 2 Seat Seal Test 1 Close downstream isolation valve and install pressure gauges on an open inlet and outlet port of main valve 2 Open upstream isolation va...

Page 6: ... or replace Pressure Sustaining Control Main 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 assembly corroded damaged Inspect stem assembly clean replace if necessary Blockage in main valve Perform freedom of movement test if valve does not close disasse...

Page 7: ...r 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 require the installation of lifting eye bolts in order to facilitate cover removal installation ports are provided on the cover for this purpose 4 Remove the Disc and Diaphragm Assembly from the valve bod...

Page 8: ...re 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 threaded into the body of the valve and require a seat removal tool Figure 5 Table 1 details the tool dimensions for seat removal Valve seats 8 and larger are held in the valve body with stainless steel...

Page 9: ...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 Return valve to service by following instructions on the Technical Bulletin matching the valve function Size in 11 4 11 2 2 21 2 3 4 6 8 10 12 14 16 P N 0677 01 0677 01 0677 02 0677 03 0677 04 0677 05 0677 06 0...

Page 10: ...ss 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 Washer x5 NY300 Fiber 15 Disc Guide ASTM A743 CF8M 316 Stainless Steel 16 Shaft ASTM A276 304 Stainless Steel 17 Seat Ring ASTM A743 CF8M 316 Stainless Steel 17A Seat Screw 8 and Larger ASTM A276 30...

Page 11: ...IOM A ACV 982_682 2115 EDP 1917092 2021 Watts 11 NOTES ...

Page 12: ...1 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 America T 52 55 4122 0138 AmesFireWater com ...

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