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ES-A-ACV-LF960GD-15

Engineering Specification, Installation, Operation and Maintenance

One-Way Flow Altitude Control Valve with Solenoid (On-Off) Override Feature

Sizes: 11/4" 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.

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

!

FLOW

LF960GD-15

Series LF960GD-15 / LF660GD-15

Table of Contents  

Page

Engineering Specifications 

ACV Schematic

  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Basic Valves

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Standard Components

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Optional Components

  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Installation, Operation and Maintenance 

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Valve Servicing Dimensions

  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Setting the Altitude Controls

  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ACV Maintenance Schedule

  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Troubleshooting Guide

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Valve Disassembly Instructions

. . . . . . . . . . . . . . . . . . . . . . . 24

Submittal Package

Watts product specifications in U.S. customary units and metric are ap prox i mate and are pro vid ed for ref er ence only. For precise mea sure ments, please contact 

Watts Tech ni cal Ser vice. Watts re serves the right to change or modify prod uct de sign, con struc tion, spec i fi ca tions, or ma te ri als with out prior notice and without 

in cur ring any ob li ga tion to make such chang es and mod i fi ca tions on Watts prod ucts previously or sub se quent ly sold.

Содержание AMES LF960GD-15 Series

Страница 1: ...ensed 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 onc...

Страница 2: ...opening and closing speeds are separately adjustable The Position Indicator with Air Bleed Petcock allow for visual indication of valve position and allows easy venting of air entrapped in the main v...

Страница 3: ...ies LF960GD 15 This Ames Automatic Control Valve ACV is a full port single chamber basic valve that incorporates a one piece disc and dia phragm assembly This assembly is the only moving part within t...

Страница 4: ...530 1945 Pressure Drop psi 2 3 4 6 8 10 20 30 40 60 80 100 Flow Rate Gallons per minute Water 2 4 10 20 40 60 80 100 200 500 1000 2000 5000 10000 20000 100000 8 6 4 8 1 0 1 2 1 4 1 6 6 2 1 1 2 3 8 1 0...

Страница 5: ...l 9 Stem Washer ASTM A276 304 Stainless 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...

Страница 6: ...e NPT Port Size NPT Shipping Weights A B C D E F G H I J K L in in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in in lbs kgs 11 4 71 4 184 51 2 140 3 8 1 4 20 9 11 2 71 4 184 81 2 216 51...

Страница 7: ...As water level increases the sensed tank head pressure increas es above the control setpoint of the Model 27 causing it to de pressurize the cover of the 3 Way Accelerator closing the Main Valve Turn...

Страница 8: ...11 Upper Jam Nut 12 Lower Jam Nut 13 Upper Diaphragm Washer 14 Diaphragm 15 Lower Diaphragm Washer 16 Shaft 17 Bearing 18 O Ring 19 Machine Screw 20 F23 Body 21 Stem 22 Spring 23 O Ring 24 F23 Seat 25...

Страница 9: ...Float or Altitude Pilot to operate the Main Valve open and closed When the cover of the Accelerator Pilot is de pressurized the main valve cover chamber is connected to upstream pressure causing the...

Страница 10: ...lve cover This causes the main valve to close until inlet pressure is again greater than outlet Model LFCK Standard Material Brass Housing and Body Stainless Steel Indicating Rod Optional Material Sta...

Страница 11: ...he free flow direction the seat moves out of the flow path to all unrestricted flow Specifications Model LFFC FLOW CLOSED Fluid Speed Controlled by Needle FLOW OPEN Free Flow Seat Full Open FLOW CLOSE...

Страница 12: ...Free Diverter Ball Valves Sizes 1 4 2 Series LFB6780 M1 2 Piece Full Port Lead Free Copper Silicon Alloy Diverter Ball Valves are designed to divert liquids and gases in commercial and industrial app...

Страница 13: ...Brass standard Stainless Steel optional Elastomers Nitrile standard EPDM optional Viton optional Voltage 24VDC 24VAC or 120VAC Enclosure General Purpose NEMA 4 standard Explosion Proof NEMA 6 6P 7 9 o...

Страница 14: ...des The screw driver operated test cock installed on the top of the Model 50 housing provides a controlled method of removal of air from the cover chamber during start up or troubleshooting of the Mai...

Страница 15: ...re used in pilot lines to provide a positive shutoff in any override or maintenance situation for simple trouble shooting This 2 piece full port valve features bottom loaded stems PTFE seats and packi...

Страница 16: ...r Size 1 4 3 4 NPT Model LF60 Flo Clean Strainers are used to filter the fluid pass ing through the pilot circuit and provide protection to pilot circuit speed controls and pilots It is installed in t...

Страница 17: ...ot circuit speed controls and pilots The filter element can be accessed for cleaning by removing the clean out cap or may be cleaned by installing an optional blow down ball valve The wetted surface o...

Страница 18: ...tact the trip arm when the main valve is closed The collar can be positioned on the stem by loosening the set screw to actuate the switch at the desired point of valve travel Single Pole Double Throw...

Страница 19: ...ion 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 detai...

Страница 20: ...on STEP 2 Energize the solenoid to check actuation and to confirm connection to power source and so that initial valve filling is against the closed solenoid NOTE In cases when testing is required pri...

Страница 21: ...dependent upon the installation application and may not be required on all valves When the valve is closed the Altitude control screw adjustment may be turned OUT counter clockwise an additional to tu...

Страница 22: ...valve 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 di...

Страница 23: ...ation 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 Blo...

Страница 24: ...require a lifting eye bolt to be installed in the valve stem accessory threads located on the very top of the valve stem 5 Before removing Stem Nut examine stem threads for mineral build up Remove dep...

Страница 25: ...ern 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 integrity of the Seat Seal by...

Страница 26: ...er costs 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...

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