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AquaMatic

MetalDiaphragm Valves

COMMERCIAL

CONTROL

VALVES

In addition to the water treatment process systems,

AquaMatic Metal Diaphragm Valves are used in a

wide variety o applications.

Typical Applications

Agricultural Irrigation

Turf Irrigation

Air Dryers

Pump Controls

Fuel Handling

Cooling Towers

Level Control Systems

Sand Blasting

Car Wash Systems

Process Water Systems

Laundry Equipment

Conveyor Systems

Air Control Systems

Dust Suppression

Plastic Molding

Machinery

Nitrogen Handling

Vacuum Control

Systems

Machine Hydraulic

Cooling Control

Street Cleaning Vehicles

Centrifugal Separators

HVAC Systems

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COMMERCIAL

CONTROL

VALVES

AquaMatic

MetalDiaphragm Valves

Features and Benefts

Low Pressure Loss

Y-pattern diaphragm valveeatures a large seat

opening and high lit-disc

or higher fow rates at a

lower pressure loss than

other comparable valves.

Positive Control Separate

valve fow and control

chambers permits positive

sealing without springs.

The optional spring-assist

open eature is availableor low pressure and sel-

draining applications.

Long Diaphragm Lie

Separate diaphragm

chambers protects the

diaphragm rom the fow

stream, while allowing

the valve to be serviced

in-line.

Cost Eective In initial

cost as well as lietimemaintenance expenses.

Durable Construction

Cast iron, brass, stainless

steel and nitrile elastomer

components, giving an

unparalleled service lie

o 3 years or longer

depending on the applica-

tions environment.

Design and Application

Engineering Service

Handles Liquid and Gases

Adaptable to a Wide

Variety o Control Devices

Series 420 Valves

Standard valves are normally open. Body and

cap are of cast iron. Preformed stress-relieved

diaphragm of nitrile (Buna N) on polyamide, and

static seals are nitrile, stainless steel and brass

internal parts.

Pipe sizes are 3/4- to 3-inch threaded (NPT

or BSP); 3- through 6-inch anged drilled in

accordance with ASA16.1 class 125, or BSP4504.

Series VAV Air ValvesStandard valves are normally open. Body and

cap are of cast iron. Preformed stress-relieved

diaphragm of nitrile (Buna N) on nylon, and static

seals are FKM and Hycar, stainless steel and

brass internal parts.

Pipe sizes are 3/4- to 3-inch threaded (NPT or

BSP) ; 3- to 4-inch anged drilled in accordance

with ASA16.1 class 125, or BSP4504.

Options

Normally closed, spring-assist

closed, spring-assist open, limit

stop, position indicator, high

temperature service, brass body

and cap (3/4- to 3-inch only),

optional seal and diaphragm

materials or special application.

Operating Specifcations

Working Pressure:

125 psi (8.6 bar)

Maximum Temperature:

150F (65C)

250F (120C) Optional

OptionsNormally closed, spring-assist

closed, spring-assist open,

FKM diaphragm for high

temperature service.

Operating SpecifcationsWorking Pressure:

125 psi (8.6 bar)

Maximum Temperature:

150F (65C)

250F (120C) Optional

Options

Adjustable ow rate control

Seal and diaphragm materials

or special applications

Spring-assist

Position indication

Registered trademarks are the property of their respective owners.

ThreadedFlanged

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VALVE

OPEN

ON-OFF

CONTROL

FLOW

NO

PRESSURE

LINE

PRESSURE

LOWER

CHAMBER

AIR

VENT VALVE

CLOSED

ON-OFF

LINE

PRESSURE

LINE

PRESSURE

UPPER

CHAMBER

AIR

VENT

Flow Rate in Gallons per Minute (gpm x 3.78 = lpm)

10

20

987

6

5

4

3

2

Cv1

0.69

1.38

0.620.550.48

0.41

0.34

0.28

0.21

0.14

0.07PressureDropinPSI

3000

2000

1000

900

800

700

600

500

400

300

200

100

90

80

70

60

50

40

30

10

20

681

454

227

204

181

159

136

113

90.8

68.1

45.4

22.7

20.4

18.2

15.9

13.6

11.4

9.1

6.8

2.3

4.5

Flow Rate (m3/hr)

PressureDrop

(Bar)

Intermittent FlowContinuous Flow

V42B

(3/

4)

V42H

(2-1/2)

V42G

(2)

V42C

(1)

V42D

(1-1/

4)

V42E

(1-1/2)

V42F

(2)

V42J

(3)

V42K

(4)

V42L

(6)

D

C

B

A (Threaded)

A (Flanged)

E

F

Dimensions or Flow-Thru Metal Diaphragm Valves

Model Number Dimensions (Approximate)420 VAV

Cv3Series Series Pipe Size Unit A B C D E1 F

2

V42B VAVB 3/4" 11.4 inches 3.69 4.25 3.75 2.75

V42C VAVC 1" 12.8 mm 94 108 95 70

V42D N/A 1-1/4" 26.5 inches 4.75 5.37 4.00 3.50

V42E VAVE 1-1/2" 32.5 mm 121 137 102 89

V42F VAVF 2" 56

inches 6.62 7.25 5.37 4.87 mm 168 184 137 124

V42G VAVG 2" 68 inches 7.37 8.00 5.75 5.50

V42H VAVH 2-1/2" 84 mm 187 203 146 140

V42J VAVJ 3" 134

inches 9.00 9.75 6.75 7.25 mm 229 248 171 184

V42J VAVJ 3" 134

inches 10.62 10.75 7.00 7.25 6.00 0.75

mm 270 273 178 184 152 19

V42K VAVK 4" 275

inches 11.75 14.75 10.00 8.75 7.50 0.75mm 298 375 254 222 191 19

V42L N/A 6" 680

inches 17.00 19.00 13.50 15.75 9.50 0.87mm 432 483 343 402 241 2

Threaded

Flanged

1Bolt circle diameter 2 Bolt hole diameter 3Cv = Flow rate in gpm of water at 60F @ 1psi pressure drop

Principles o Operation

Full Open Operation:When closing pressure inupper chamber is relievedby venting the pilot line,the valve opens, positively,by line pressure on the disc.

Perormance Flow Rate Characteristics

Drip-Tight Closing:Closure is obtained bydirecting line pressure orequivalent independentpressure into the upperchamber. This pressureon the large diaphragmarea causes the valve discto seal against the seat.(Ratio o diaphragm todisc area is 1.3 or greater.)

Metal Diaphragm Valves

(Threaded and Flange)

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20580 Enterprise Avenue 5730 North Glen Park Road 2009 Pentair Residential Filtration, LLCBrookfeld, WI 53045 Milwaukee, WI 53209 1163574 Rev G DE09Tel: 262.784.4490 Tel: 262.238.4400Fax: 262.784.7794 Fax: 262.238.4402

Customer Care: 800.279.9404 www.pentairwatertreatment.com