Watts AMES LF960GD-15 Series User manual

ES-A-ACV-LF960GD-15

Engineering Specification, Installation, Operation and Maintenance

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

Sizes: 1¼" 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 approximate and are provided for reference only. For precise measurements, please contact

Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without

incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

Full Port Ductile Iron Single Chamber Valve

• Designed for Tank Fill applications

• Opens when Tank head pressure is below setpoint

• Closes when Tank head pressure is above setpoint

• Solenoid (On-Off) Feature provides electrical override of Tank Fill

function

• Tank Sense Line is field installed (to Tank or standpipe)

• Adjustable Opening and Closing Speed

• Altitude setpoint is adjustable

Operation

The One-Way Flow Altitude Automatic Control Valve (ACV) with

Solenoid Override Feature is designed to open, allowing flow into

a reservoir or elevated storage tank (tank fill), and close drip tight

when high water level is achieved. The Altitude Pilot remotely senses

static tank head pressure (water level) through a field installed sens-

ing line, and directs pressure into and out of the cover chamber of

the 3-way Accelerator Pilot. When the cover of the Accelerator Pilot

is pressurized, the main valve cover chamber is vented downstream

(dry drain) or to atmosphere (wet drain), causing the valve to open

fully. When the cover of the Accelerator Pilot is de-pressurized,

the main valve cover chamber is connected to upstream pressure,

causing the valve to close drip tight.

As water level decreases, static tank head pressure falls below the

adjustable setpoint of the Altitude Pilot, causing it to pressurize the

cover of the Accelerator Pilot, opening the valve. As water level

increases, static tank head exceeds the adjustable setpoint of the

Altitude Pilot, causing it to depressurize the cover of the Accelerator

Pilot, closing the valve drip tight. Valve 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 valve cover chamber.

The Solenoid Override Feature provides remote electrical, or local

manual closure of the valve. When the Solenoid Pilot is energized,

it vents the cover of the Accelerator Pilot, causing the main valve

to close regardless of water level. Engaging the Solenoid Manual

operator simulates power to the solenoid, manually closing the main

valve. Disengaging the Solenoid Manual operator returns the valve to

normal on-off service.

Specify Tank height and Solenoid voltage PRIOR to ordering.

P(L)

Y/FC

CLOSES VALVE

OPENS VALVE

FLOW

(Tank Sense Line)

Standard Components

Options and Accessories

{FC – Flo-Clean Strainer

{Y – Y-Strainer (Replaces Flo-Clean)

{L – Limit Switch

1 – Main Valve (905GD - Single Chamber)

2 – Model 22-1 Accelerator Control

3 – Altitude Control

4 – Check Valve

5 – Adjustable Opening Speed

6 – Adjustable Closing Speed

7 – 3-Way Solenoid

8 – 3-Way Ball Valve

P – Position Indicator

X – Isolation Cocks

Engineering Specification

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

Features

LEAD FREE*

The information contained herein is not intended to replace the full

product installation and safety information available or the experi-

ence of a trained product installer. You are required to thoroughly

read all installation instructions and product safety information

before beginning the installation of this product.

NOTICE

*The wetted surface of this product contacted by consumable water

contains less than 0.25% of lead by weight.

Series LF960GD-15

Threaded = 400psi (27.6 bar)

150# Flanged = 250psi (17.2 bar)

300# Flanged = 400psi (27.6 bar)

Grooved End = 400psi (27.6 bar)

Operating Pressure

M Series Basic Valves

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

Full Port Ductile Iron Single Chamber Basic Valve

Standard Materials

Body and Cover: Ductile Iron ASTM A536

Coating: NSF Listed Fusion Bonded Epoxy

Lined and Coated

Trim: 316 Stainless Steel

Elastomers: Buna-N (standard)

EPDM (optional)

Viton

™

(optional)

Nut, Spring and Stem: Stainless Steel

Anti-Scale (Optional): Xylan Coated Stem and Seat

Viton™ is a trademark of The Chemours Company FC, LLC

ACV Schematic - Series 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

the valve allowing it to open, close, or modulate as commanded

by the pilot control system.

Ames ACV Main Valves are Lead Free. The Ames ACV piloting

system contains Lead Free* components, ensuring all of our con-

figurations are Lead Free compliant.

Globe Pattern Single Chamber Basic Valve (905GD)

Angle Pattern Single Chamber Basic Valve (905AD)

Globe Flanged Angle Flanged

Globe Threaded Angle Threaded

Globe Grooved End Angle Grooved End

Basic Valve Body Options

Operating Temperature

Buna-N: 160°F (71°C) Maximum

EPDM: 300°F (140°C) Maximum

Viton™: 250°F (121°C) Maximum

Epoxy Coating**: 225°F (107°C) Maximum

** Valves can be provided without internal epoxy coating consult factory

Flow Data

Valve Travel

Valve Size - Inches 1¼ 1½22½ 3 4 6 8 10 12 14 16

Travel - Inches

⅜

⅝

Valve Cover Chamber Capacity

Valve Size - Inches 1¼ 1½22½ 3 4 6 8 10 12 14 16

fl.oz. 44410 16 22 70

U.S. Gal 1

Valve Size - Inches 1¼ 1½22½ 3 4 6 8 10 12 14 16

Maximum Continuous

Flow Rate Gpm (Water) 95 130 210 300 485 800 1850 3100 5000 7000 8500 11100

Maximum Intermittent

Flow Rate Gpm (Water) 119 161 265 390 590 1000 2300 4000 6250 8900 10800 14100

Minimum Flow Rate Gpm (Water) 3 5 6 9 15 16 17 25 55 70 190 400

CVFactor GPM (Globe) 26 26 48 75 112 188 387 764 1215 1734 2234 3131

CVFactor GPM (Angle) 26 27 57 91 125 207 571 889 1530 1945

Pressure Drop (psi)

100

Flow Rate - Gallons per minute (Water)

2410 20 40 60 80 100 200 500 1000 2000 5000 10000 20000 100000

1½

1¼

2½

1¼

1½

Angle

Globe

CVSuggested

• Maximum continuous flow based on velocity of 20 ft. per second.

• Maximum intermittent flow based on velocity of 25 ft. per second.

• Minimum flow rates based on a 20-40 psi pressure drop.

• The CvFactor of a value is the flow rate in US GPM at 60°F that will

cause a 1psi drop in pressure.

• Cvfactor can be used in the following equations to determine Flow

(Q) and Pressure Drop (∆P):

Q (Flow) = Cv√∆P ∆P (Pressure Drop) = (Q/Cv)2

• The Cv factors stated are based upon a fully open valve.

• Many factors should be considered in sizing control valves

including inlet pressure, outlet pressure and flow rates.

• For sizing questions including cavitation analysis consult Watts

with system details.

ACV Schematic - Series LF960GD-15

Basic Valve

Optional

Xylan

Coating

17A

Optional

Xylan

Coating

17A

Item Description Material

1Pipe Plug Lead Free Brass

2Cover ASTM A536 65-45-12 Epoxy Coated Ductile Iron

3Cover Bearing ASTM A276 304 Stainless Steel

4Stud with Cover Nut and

Washer ASTM A570 Gr.33 Zinc Plated Steel

5Body ASTM A536 65-45-12 Epoxy Coated Ductile Iron

6Spring ASTM A276 302 Stainless Steel

7Stem Nut ASTM A276 304 Stainless Steel

8Lock Washer ASTM A276 304 Stainless Steel

9Stem 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

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 304 Stainless Steel

18 Seat Gasket* Buna-N (Nitrile)

* Contained in Main Valve Repair Kit

**Note: 6 inch and Smaller Valves, Seat Ring is threaded

Installation: If unit is installed in any orientation other than

horizontal (cover up) OR extreme space constraints exist,

consult customer service prior to or at the time of order.

NOTICE

ACV Schematic - Series LF960GD-15

Flanged and Threaded Grooved End

Valve

Size

Globe Grooved Cover To Center Angle Grooved Angle Grooved Port Size

(npt)

Port Size

(npt)

Shipping Weights*

A B C D E F

in. in. mm in. mm in. mm in. mm in. in. lbs. kgs.

216 5

140 4

108 3

⅜¼

25 11

216 5

140 4

108 3

⅜¼

25 11

2 9 229 6

165 4

121 3

⅜

40 18

11 279 7

191 51⁄2140 4102

65 29

312

318 8

210 6152 4

108

95 43

415 381 10

⅝

270 7

191 5127

190 86

620 508 13

⅜

340

320 145

8253⁄8645 16 406 1 1 650 295

Grooved End Dimensions

Dimensions

Flanged and Threaded Dimensions

Valve

Size

Globe Thread Globe 150# Globe 300# Cover To

Center

Angle Thread Angle 150# Angle 300# Angle Thread Angle 150# Angle 300# Port Size

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.

184 5

140

⅜

20 9

184 8

216 5

140 3

83 1

⅞

⅜

25 11

⅜

238 9

⅜

238 10 254 6

171 4

120 4

121 5127 3

83 3

⅜

40 18

11 279 11 279 11

⅝

295 7

191 5

140 5

⅞

149 4102 4102 4

5/16

110

65 29

312

318 12 305 13

337 8

210 6

159 6152 6

⅜

162 4

114 4102 4

⅜

111

95 43

415 381 15

⅝

397 10

⅝

270 7

191 7

⅞

200 5127 5

5/16

135

190 86

620 508 21 533 13 330 10 254 10

267 6152 6

165

320 145

825

⅜

645 26

⅜

670 16 406 12

324 13

337 8203 8

216 1 1 650 295

10 29

756 31

⅛

791 17 430 14

⅞

378 15

9/16

395 8

⅝

219 9

5/16

237 1 1 940 426

12 34 864 35

902 20

⅞

530 17 432 17

451 13

349 14

368 11

1500 680

14 39 991 40

1029 24

616 11

1675 760

16 41

⅜

1051 43

1105 25

640 1 2 3100 1406

ACV Schematic - Series LF960GD-15

LEAD FREE*

The Model 27 Altitude Pilot is a hydraulically operated, diaphragm

actuated, spring loaded 3-port pilot designed to open or close

based upon static tank head pressure versus an adjustable spring

setting. It directly monitors tank head pressure by a contractor

field installed Sensing Line. The large diaphragm area causes the

Model 27 to be sensitive to slight changes in tank head pressure.

The Model 27 Altitude Pilot works in conjunction with a 3-Way

Accelerator Pilot (Model 22 or Model 22-1) to open and close the

Main Valve.

As water level decreases, the sensed tank head pressure falls

below the control setpoint of the Model 27, causing it to pressur-

ize the cover of the 3-Way Accelerator, allowing the Main Valve to

open for filling operations. The valve will either open fully or regu-

late to fill the tank based upon the pilot control system installed on

the Main Valve.

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.

Turning the Adjusting Screw clockwise increases the control set-

ting, increasing tank level. Turning the Adjustment Screw counter-

clockwise lowers the control setting, decreasing tank level.

The Model 27 may be equipped with an optional Altitude Gauge

or Delayed Opening Pilot in the sensing line to allow for increased

tank turn-over. Consult your factory representative for details.

Model 27

Altitude Pilot

Size:



" NPT Actuation Ports (

" NPT Sense

Line Port)

*The wetted surface of this product contacted by consumable

water contains less than 0.25% of lead by weight.

Specifications

3.5 in / 89.5 mm

13.5 in / 345 mm

7.68 in / 195.15 mm

2.88 in / 73.36 mm

2.5 in / 38.27 mm

Model LF27

Body: Brass Alloy C46500 (standard)

Stainless Steel (optional)

Adjustment Spring: Steel

Adjustment Range: 5-20 feet (2 - 6 meters)

10-75 feet (3 - 23 meters)

50-225 feet (15- 69 meters)

Elastomers: Buna-N (standard)

EPDM (optional)

ACV Standard Components - Series LF960GD-15

*Included in Repair Kit

Item Description

1Adjusting Screw

2Jam Nut

3Cap

4Spring Housing

5Upper Chamber

6Stud with Cover Nut and Washer x8

7Lower Chamber

8Upper Spring Guide

9Spring (see below)

10 Lower Spring Guide

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 Disc and Retainer*

26 Spring

27 Lower Cap

28 O-Ring*

ACV Standard Components - Series LF960GD-15

Model 27

Altitude Pilot

Vent**

Sense Line

LEAD FREE*

ACV Standard Components - Series LF960GD-15

Exhaust

Supply

Common

Accelerator Cover Accelerator Port

Supply

Exhaust

Supply

Common

Top View Bottom View

Model 22-1

3-Way Accelerator Control

Size:

½"

The Model 22-1 3-Way Accelerator Pilot is a diaphragm-actuated

control with three separate ports: Supply, Common and Exhaust.

It is normally installed in the pilot control circuit of an Automatic

Control Valve, with the supply port connected to upstream

pressure, the common port connected to the Main Valve cover

chamber, and the exhaust port vented either downstream or

to atmosphere. Its large ½" ports offer increased capacity, and

allow smaller ported devices, such as a 3-Way Solenoid, 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 valve to close drip tight.

When the cover of the Accelerator Pilot is pressurized, the main

valve cover chamber is vented downstream (dry drain) or to atmo-

sphere (wet drain), causing the valve to open fully.

*The wetted surface of this product contacted by consumable

water contains less than 0.25% of lead by weight.

Specifications

Size: ½"

Body Material: C87800 Silicone Bronze (std)

CF8M Stainless Steel (opt)

Elastomers: Buna-N (std)

Viton™ (opt)

EPDM (opt)

Inlet Pressure Rating: 400 psi maximum

Model LF22-1

*Included in Repair Kit

Item Description

1Nut

2Lock Washer

3Upper Diaphragm

4Diaphragm*

5Lower Diaphragm Washer

6Spring

7Stem

8Spool

9O-Ring*

10 O-Ring*

11 Retainer

12 O-Ring*

13 O-Ring Washer

14 Lock Washer

15 Nut

Viton™ is a trademark of The Chemours Company FC, LLC

LEAD FREE*

Model CK

Check Valve

Size: ¼" – 1" NPT

Model CK Check Valves are pilot line check valves. In typical

applications these low cracking pressure in-line checks provide a

hydraulic check feature to a pilot system. When the main valve outlet

pressure exceeds inlet pressure, fluid is directed from the outlet to

the main valve 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: Stainless Steel Housing and Body Disc

Viton™ (¼" – ½")

PTFE (1")

Pressure Rating: 400psi (27.6 bar)

Body

Spring

Retainer

Stem

Adaptor

Disc

Disc Holder

Specifications

*The wetted surface of this product contacted by consumable

water contains less than 0.25% of lead by weight.

Viton™ is a trademark of The Chemours Company FC, LLC

ACV Standard Components - Series LF960GD-15

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