Watts LFM513-AK Installation, Operation And Maintenance Manual Download Page 11 | Manualshive

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10 IOM-ACV-513-AK_6513-AK 2115

EDP# 1917101

© 2021 Watts

IOM-ACV-513-AK_6513-AK 2115

EDP# 1917101

© 2021 Watts 11

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Summary of Contents for LFM513-AK

Page 1: ...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 codes the local codes shoul...

Page 2: ...o minimize the surges asso ciated with the starting and stopping of pumps The valve slowly opens and closes as required to control pumping related surges The pump starts and stops against a closed valve Pump start up When the pump is signaled to start the 3 Way Solenoid is energized and pressurizes the cover chambers of each 3 Way Accelerator Pilot Accelerator Pilot 2B directs fluid and pressure i...

Page 3: ...confirm rate of movement and remove excess air trapped within the cover chambers To increase the rate of opening closing turn the adjustment screws on the speed controls OUT counterclockwise See Figure 1B In decrease the rate of opening closing turn the adjustment screws on the speed controls IN clockwise See Figure 1A STEP 2 Prior to pump start energize the solenoid to confirm connection to power...

Page 4: ... to operate as the main valve closes To close main valve de energize the solenoid checking that the main valve closes STEP 7 Closing Speed Flow Adjustment While free flow goes into the upper chamber the closing speed flow control restricts flow out of the lower chamber of the main valve If valve closing is too slow turn the adjustment screw OUT coun terclockwise increasing the rate of closing See ...

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 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 valve...

Page 6: ...in 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 disassemble and remove blockage Worn damaged valv...

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 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 body ...

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 Inspect valve seat If seat is not damaged removal is not necessary If it is damaged please contact factory for instructions 8 IOM ACV 513 AK_6513 AK 2115 EDP 1917101 2021 Watts ...

Page 9: ...y 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 Return valve to service by following instructions on the Technical Bulletin matching the valve function Size in 2 21 2 3 4 6 8 10 12 14 16 P N 0677 21 0677 22 0677 23 0677 24 0677 25 0677 26 Consult Facto...

Page 10: ...3 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 N Nitrile 17 Upper Stem ASTM A276 304 Stainless Steel 18 Lower Stem ASTM A276 304 Stainless Steel 19 Spring ASTM A276 302 Stainless Steel 20 Disc Retainer ASTM A536 65 45 12 Epoxy Coated Ductile Iron...

Page 11: ...IOM ACV 513 AK_6513 AK 2115 EDP 1917101 2021 Watts 11 NOTES ...

Page 12: ...not be responsible for any incidental special or consequential damages including without limitation lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly other costs resulting from labor charges delays vandalism negligence fouling caused by foreign material damage from adverse water conditions chemical or any other circumstances o...

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