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Installation, Operation and Maintenance

Pump Control Control Valve

Sizes: 1 1/4" to 24" 

NOTICE

For Australia and New Zealand: Pipeline strainers should be 

installed between the upstream shutoff valve and the inlet of  

the backflow preventer.

It’s important that this device be tested periodically in compli-

ance with local codes, but at least once per year or more as 

service conditions warrant. If installed on a fire sprinkler system, 

all mechanical checks, such as alarm checks and backflow  

preventers, should be flow tested and inspected internally in  

accordance with NFPA 13 and NFPA 25.

WARNING

!

Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information 

can result in death, serious personal injury, property 

damage, or damage to the equipment.
Keep this Manual for future reference.

Table of Contents  

Page

Introduction .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2

Installation   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2

Commissioning the 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 codes, the 

local codes should be followed.  This product must be 

installed by a licensed contractor in accordance with 

local codes and ordinances.

WARNING

!

Need for Periodic Inspection/Maintenance:

  This product 

must be tested periodically in compliance with local codes, 

but at least once per year or more as service conditions 

warrant .  All products must be retested once maintenance 

has been performed .  Corrosive water conditions and/or 

unauthorized adjustments or repair could render the product 

ineffective for the service intended .  Regular checking and 

cleaning of the product’s internal and external components 

helps assure maximum life and proper product function . 

WARNING

!

Model LFM113-21 / LFM6113-21

IOM-ACV-113-21_6113-21

Summary of Contents for LFM113-21

Page 1: ...p 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 sho...

Page 2: ...rcuit 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 Wire the limit switch contacts to the proper relay connections using saf...

Page 3: ...sed position 3 Way Solenoid Valve Turn manual operator stem counter clockwise to 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 Globe Angle Size in 11 4 11 2 2 21 2 3 ...

Page 4: ...ve opens Air is vented through the loosened fitting Tighten the fitting when liquid begins to vent STEP 6 Opening Speed Flow Control Adjustment The Opening speed needle valve restricts flow into the cover and restricted flow out of the cover of the main valve If valve opening is too slow turn the adjustment screw OUT counterclockwise increasing the rate of opening See Figure 2B If valve opening is...

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: ...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 2 Table 1 details the tool dimensions for seat removal Valve seats 8 and larger are held in the valve body with stainless steel ca...

Page 9: ...oth 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 0677...

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 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 3...

Page 11: ...IOM ACV 113 21_6113 21 2115 EDP 1917093 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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