CLA-VAL 60-31 Allgemeine Anweisungen

60-31/660-31

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CVCL

1 @ 3 4

DIST

CODE

002

SHEET

DRAWING

NO.

91325

BOOSTER PUMP CONTROL VALVE

WITH

HY-CHECK

(4"

AND LARGER ONLY)

DESIGN

DRAWN

CHK'D

APV'D

- - - -

NOT

FURNISHED

CLA-VAL

CO.

~~~3

-----

OPTIONAL

FEAlURES

/I\

~E6

N.C. r

COM.

N.O.

~7A

(

------00--------

(

'\7..,

+--

P3_/

f-j /

MGR

-------

-·~~

INLET

OUTLET

........

•USE

FLOW

CONTROLS

SMALLERlQ(60-3}

*USE

FLOW

CONTROLS

SMALLER

VALVES

(660-31)

1:1

BASIC

COMPONENTS

QTY

100-04

HY-CHECK

(60-31)

MAIN

VALVE 1

100-23

HY-CHECK

(660-31)

MAIN

VALVE

8 CK2

COCK

(ISOLATION VALVE)

102C-3H

3-WAY

HYTROL

W/PIPE

PLUG

CS3SM

SOLENOID

CONTROL

4 X105LCW LIMIT

SWITCH

ASSEMBLY 1

CDC

CHECK

VALVE 1

6 CDC/CSC

CHECK

VALVE 1

7 *CV

FLOW

CONTROL/CNA

NEEDLE

VALVE 2

OPTIONAL

FEATURE

SUFFIX

ADDED

CATALOG

NUMBER

A X46A

FLOW

CLEAN

STRAINER

B CK2

COCK

(ISOLATION VALVE) 3

X141

PRESSURE

GAUGE

ASSEMBLY 3

Y X43 "y"

STRAINER

IREV

4-4-80

5-5-80

5-19-80

--7B

"lllS

DRAWING

11£

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CO.

AND

SAME

AND

COPIES

MADE

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SHAl.l

REMNED

IT~

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MANNER

ANYl*E

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CVCL

1 @ 3 4

DIST

CODE

002

SHEET

DRAWING

NO.

IREV

91325

DESIGN

BOOSTER

PUMP

CONTROL

VALVE

WITH

HY-CHECK

(4"

AND

LARGER

ONLY)

DRAWN

MGR

4-4-80

CHK'D

5-5-80

APV'D

5-19-80

OPERATING

DATA

SOLENOID

CONTROL

FEATURE:

SOLENOID

CONTROL

(3)

DIRECT

ACTING,

3-WAY

SOLENOID

CONTROL

THAT

CHANGES

POSITION

WHEN

THE

COIL

DE-ENERGIZED

ENERGIZED.

THIS

APPLIES

RELIEVES

PRESSURE

THE

COVER

CHAMBER

THREE-WAY

CONTROL

(2),

PROVIDING

THE

OPERATION

SHOWN

THE

FOLLOWING

TABLE:

SOLENOID

CONTROL

(3)

POSITION

ENERGIZED

DE-ENERGIZED

PORTS

CONNECTED

1 &2

1 &3

3-WAY

HYTROL

(2)

POSITION

COM.

N.O.

COM.

N.C.

MAIN

VALVE

(1)

POSITION

OPEN

CLOSED

NOTE:

SOLENOID

CONTROL

(3)

EQUIPPED

WITH

A MANUAL

ACTUATOR

WHICH

CAN

USED

OPERATE

THE

SOLENOID

WITHOUT

ELECTRICAL

POWER.

AFTER

MANUAL

ACTUATION,

ALWAYS

RETURN

THE

ACTUATOR

ITS

ORIGINAL

POSITION

THE

SOLENOID

WILL

NOT

RETURN

THE

DE-ENERGIZED

POSITION.

II.

CHECK

VALVE

FEATURE:

THE

MAIN

VALVE

(1)

HAS

INTEGRAL

CHECK

FEATURE.

WHEN

OUTLET

PRESSURE

EXCEEDS

INLET

PRESSURE,

THE

MAIN

VALVE

CLOSES

PREVENTING

REVERSE

FLOW.

CHECK

VALVE

(6)

OPENS

AND

CHECK

VALVE

(5)

CLOSED.

THIS

PERMITS

OUTLET

PRESSURE

FLOW

INTO

THE

MAIN

VALVE

COVER

CHAMBER

AND

THE

DIAPHRAGM

ASSEMBLY

MOVES

THE

DOWN

POSITION.

Ill.

CLOSING

SPEED

CONTROL:

/CNA

FLOW

CONTROL

CONTROLS

THE

CLOSING

SPEED

THE

MAIN

VALVE.

TURN

THE

ADJUSTING

STEM

CLOCKWISE

MAKE

THE

MAIN

VALVE

SLOWER.

NOT

VALVE

(7A)

COMPLETELY

THE

MAIN

VALVE

WILL

NOT

CLOSE.

(SUGGESTED

INITIAL

SETTING

NEEDLE

VALVE

1/4

TURN

OPEN.)

"lllS

DRAWING

11£

PRa'ERlY

Cl'

a..A-VAl

CO.

AND

SAME

AND

COPIES

MADE

lHERECI',

ANY,

SHAl.l

REMNED

IT~

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DELMRY

AND

DISQ.OSURE

HERE<I'

ARE

MADE

sa.n.Y

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NOT

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REPROOUCED,

NOR

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lHE

SUB.ECT

HERE<I'

DISQ.OSED

ANY

MANNER

ANYl*E

FOR

ANY

PURPOSE,

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PRIOR

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llAlERIAl.S

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PRODIJClS

FURNISHED

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CO.

WllE11£R

NOT

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EQUIPMENT

INFORllAllOO

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OlHERWISE

PROlECTED

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1Tn.E

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CVCL

1 @ 3 4

DIST

CODE

002

BOOSTER

PUMP

CONTROL

VALVE

WITH

HY-CHECK

(4"

AND

LARGER

ONLY)

OPERATING

DATA-CONTINUED

IV.

OPENING

SPEED

CONTROL:

SHEET

DRAWING

NO.

91325

DESIGN

DRAWN

MGR

CHK'D

APV'D

/CNA

FLOW

CONTROL

(7B)

CONTROLS

THE

OPENING

SPEED

THE

IREV

4-4-80

5-5-80

5-19-80

MAIN

VALVE

TURN

THE

ADJUSTING

STEM

CLOCKWISE

MAKE

THE

MAIN

VALVE

OPEN

SLOWER.

NOT

VALVE

(7B)

COMPLETELY

THE

MAIN

VALVE

WILL

NOT

OPEN.

(SUGGESTED

INITIAL

SETTING

NEEDLE

VALVE

TURN

OPEN).

SWITCH

ASSEMBLY

FEATURE:

SWITCH

ASSEMBLY

(4)

ACTUATED

STEM

EXTENSION

ATTACHED

THE

MAIN

VALVE

STEM.

THE

SWITCH

ASSEMBLY

FACTORY

ADJUSTED

ACTUATE

A SINGLE-POLE DOUBLE-THROW

SWITCH

WHEN

THE

MAIN

VALVE

ALMOST

CLOSED.

WHEN

THE

MAIN

VALVE

STARTS

OPEN,

THE

SPRING

LOADED

SWITCH

ACTUATING

LEVER

RELEASED

AND

RETURNS

THE

SWITCH

ITS

NORMAL

POSITION.

VI.

OPTIONAL

FEATURE

OPERATING

DATA:

I=!

SUFFIX

(FLOW

CLEAN

STRAINER):

A SELF-CLEANING

STRAINER

INSTALLED

THE

MAIN

VALVE

INLET

BODY

BOSS

WHICH

PROTECTS

THE

PILOT

SYSTEM

FROM

FOREIGN

PARTICLES.

SUFFIX

(ISOLATION

VALVES):

CK2

COCKS

(B)

ARE

USED

ISOLATE

THE

PILOT

SYSTEM

FROM

MAIN

LINE

PRESSURE.

THESE

VALVES

MUST

OPEN

DURING

NORMAL

OPERATION.

SUFFIX

(PRESSURE

GAUGE):

PRESSURE

GAUGES

(P1

), (P2),

AND

(P3)

PROVIDE

PRESSURE

READING

THE

INLET,

OUTLET,

AND

COVER

CONNECTIONS.

SUFFIX

y CY-STRAINER):

A Y-PATTERN

STRAINER

INSTALLED

THE

PILOT

SUPPLY

LINE

PROTECT

THE

PILOT

SYSTEM

FROM

FOREIGN

PARTICLES.

THE

STRAINER

SCREEN

MUST

CLEANED

PERIODICALLY.

"lllS

DRAWING

11£

PRa'ERlY

Cl'

CLA-VAl

CO.

AND

SAME

AND

COPIES

MADE

lHERECI',

ANY,

SHAl.l

REMNED

IT~

DEMAND.

DELMRY

AND

DISQ.OSURE

HERE<I'

ARE

MADE

sa.n.Y

COOTION

lHAT

lHE

SAME

SHAl.l

NOT

USED,

COPIED

REPROOUCED,

NOR

SHAl.l

lHE

SUB.ECT

HERE<I'

DISQ.OSED

ANY

MANNER

ANYl*E

FOR

ANY

PURPOSE,

EXCEPT

HEREIN

AUlHORIZED,

WllHOUT

PRIOR

WlllTTEN

APPROVAl

Cl'

a.A-VAL

CO.

lHIS

DRAWNG

SUBllTIED

CMIDENllAl.lY

AND

llAY

NOT

USED

lHE

llANUFACME

Cl'

ANY

llAlERIAl

PROOIJCT

OlHER

lHAN

SUQl

llAlERIAl.S

AND

PRODUClS

FURNISHED

CLA-VAl

CO.

WllE11£R

NOT

lHE

EQUIPMENT

INFORMATION

SHO\ltl

HEREON

PAlENTED

011£RWISE

PROlECTED

FUil

1Tn.E

AND

C<l'YRIGilS.

AN't'.

AND

lHIS

DRAWING

AND/OR

INFORMATION

DEU\fRED

SUBlllTIED

ARE

FULlY

RESER\fll

CLA-VAl

CO.'

CVCL

1 @ 3 4

DIST

CODE

002

BOOSTER

PUMP

CONTROL

VALVE

WITH

HY-CHECK

(4"

AND

LARGER

ONLY)

OPERATING

DATA-CONTINUED

VII.

CHECK

LIST

FOR

PROPER

OPERATION:

( )

SYSTEM

VALVES

OPEN

UPSTREAM

AND

DOWNSTREAM.

SHEET

DRAWING

NO.

IREV

91325

DESIGN

DRAWN

MGR

4-4-80

CHK'D

5-5-80

APV'D

5-19-80

( )

AIR

REMOVED

FROM

THE

MAIN

VALVE

COVER

AND

PILOT

SYSTEM

ALL

HIGH

POINTS.

( )

PERIODIC

CLEANING

STRAINER

(Y)

RECOMMENDED

(OPTIONAL

FEATURE).

( )

FLOW

CONTROLS

AND

(7B)

OPEN

LEAST

TURNS

(OPTIONAL

FEATURE).

( )

NEEDLE

VALVES

(7A)

AND

(7B)

OPEN

LEAST

1/4

TURN.

( )

CORRECT

VOLTAGE

SOLENOID

CONTROL

(3).

( ) MANUAL

OPERATOR

SOLENOID

CONTROL

(3)

DISENGAGED.

( )

LIMIT

SWITCH

ASSEMBLY

(4)

PROPERLY

WIRED.

( )

CK2

COCK

(8)

OPEN

DURING

NORMAL

OPERATION.

( )

CK2

COCKS

(B)

OPEN

(OPTIONAL

FEATURE).

"lllS

DRAWING

11£

PRa'ERlY

Cl'

a..A-VAl

CO.

AND

SAME

AND

COPIES

MADE

lHERECI',

ANY,

SHAl.l

REMNED

IT~

DEMAND.

DELMRY

AND

DISQ.OSURE

HERE<I'

ARE

MADE

sa.n.Y

C<NllllOO

lHAT

lHE

SAME

SHAl.l

NOT

USED,

COPIED

REPROOUCED,

NOR

SHAl.l

lHE

SUB.ECT

HERE<I'

DISQ.OSED

ANY

MANNER

ANYl*E

FOR

ANY

PURPOSE,

EXCEPT

HEREIN

AUlHORIZED,

WllHOUT

PRIOR

WlllTTEN

APPROVAl

Cl'

a.A-VAL

CO.

lHIS

DRAWNG

SUBllTIED

CXN'IDENllAl.lY

AND

llAY

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Cl'

ANY

llAlERIAl

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lHAN

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llAlERIAl.S

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FURNISHED

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NOT

lHE

EQUIPMENT

INFORllAllOO

SHO\ltl

HEREOO

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a..A-VAl

CO.'

• Built-in Automatic Check alve

• Drip Tight, Positive Seating

• Globe or Angle Pattern

• Service Without Removal From Line

• Every valve factory-tested

The Cla-Val Model 100-04 Hy-Check Valve is a

hydraulically operated diaphragm valve with a built-in check

feature to prevent return flow. Available in globe or angle

pattern, it consists of a body, cover and diaphragm

assembly. The diaphragm assembly which is guided top

and bottom by a precision machined stem is the only

moving part.

A synthetic rubber disc retained on three and one half sides

forms a drip-tight seal with the renewable seat when

operating pressure is applied above the non-wicking

diaphragm. When pressure above the diaphragm is

relieved, the valve opens wide. The rate of closing or

opening can be controlled by modulating the flow into or out

of the cover chamber. When a pressure reversal occurs the

split stem will immediately allow the disc retainer assembly

to check closed regardless of the position of the

diaphragm.

The Model 100-04 is used on system applications such as

remote control, pressure regulation, solenoid control, etc.;

wherever a positive check feature is necessary to prevent

reverse flow. Its packless construction and simplicity of

design minimizes maintenance and assures a long

dependable service life.

100-04

Hy-Check alve

Full Open Operation

When pressure in the cover

chamber is relieved to a zone of

lower pressure, the line pressure at

the valve inlet opens the valve,

allowing full flow.

Check Action

When a static condition or pressure

reversal occurs, the split stem design

allows the valve to instantly check

closed. Return flow is prevented

regardless of

the diaphragm's

position.

Tight Closing Operation

When pressure from the valve inlet

is applied to the cover chamber, the

valve closes drip-tight.

On-Off Control On-Off Control Modulating

Control

Principle of Operation

Note: For optimum operation of built-in check feature, installation with stem vertically up is recommended.

MODEL

see page 2 for

approvals

Epoxy Coating - suffix KC

This option NSF 61 Listed and FDA

approved, fusion bonded epoxy coating is

for use with cast iron, ductile iron or steel

valves. This coating is resistant to various

water conditions, certain acids, chemicals,

solvents and alkalies. Epoxy coatings are

applied in accordance with AWWA coating

specifications C116-03.

Do not use with temperatures above

175° F

/80°C.

iton®Rubber Parts

suffix KB

Optional diaphragm, disc and o-ring

fabricated with Viton®synthetic rubber. Viton®

is well suited for use with mineral acids, salt

solutions, chlorinated hydrocarbons, and

petroleum oils; and is primarily used in high

temperature applications up to 250°F/120°C.

Do not use with epoxy coating above

175°F/80° C.

For assistance in selecting appropriate

valve options or valves manufactured

with special design requirements,

please contact our Regional Sales

Office or Factory.

Options

Specifications Model 100-04

Operating Temp. Range

Available Sizes

Pattern Flanged

Globe 2" - 16"

50 - 400 mm

Angle 3" - 16"

80 - 400 mm

Fluids

-40° to 180° F

-40° to 82° C

Component Standard Material Combinations

Body & Cover Ductile Iron Cast Steel Bronze

Available Sizes (inches) 2" - 16" 2" - 16" 2" - 16"

Available Sizes (mm) 50 - 400 mm 50 - 400 mm 50 - 400 mm

Disc Retainer &

Diaphragm Washer Cast Iron Cast Steel Bronze

Trim: Disc Guide,

Seat & Cover Bearing

Bronze is Standard

Stainless Steel is optional

Disc Buna-N®Rubber

Diaphragm Nylon Reinforced Buna-N®Rubber

Stem, Nut & Spring Stainless Steel

For material options not listed, consult factory.

Cla-Val manufactures valves in more than 50 different alloys.

Materials

BOLT/HEX NUT (TYP)

COVER BEARING

UPPER DIAPHRAGM WASHER

SEAT

STUD/BOLT (TYP)

BODY

INLET

PIPE PLUG (TYP)

OUTLET

SEAT-O-RING

DISC GUIDE

DIAPHRAGM

UPPER STEM NUT

COVER

PIPE PLUG (TYP)

UPPER STEM

DISC GUIDE SCREW (TYP)

LOCK WASHER

LOWER STEM NUT

SPRING

LOWER STEM

SPRING

LOWER DIAPHRAGM WASHER

DISC

DISC RETAINER

Valve Body & Cover Pressure Class

Flanged Threaded

Grade Material ANSI

Standards*

150

Class

300

Class

End‡

Details

ASTM A536 Ductile Iron B16.42 250 400 400

ASTM A216-WCB Cast Steel B16.5 285 400 400

UNS 87850 Bronze B16.24 225 400 400

Note: * ANSI standards are for flange dimensions only.

Flanged valves are available faced but not drilled.

‡ End Details machined to ANSI B2.1 specifications.

alves for higher pressure are available; consult factory for details

Pressure Ratings (Recommended Maximum Pressure - psi)

NSF International

recognizes Cla- al

as complying with

NSF/ANSI 61 and all

applicable

requirements.

NSF/ANSI 372:

National Lead Free

Mandate “Reduction

of Lead in Drinking

Water Act”

Approvals

Valve Size Inches 2 3 4 6 8 10 12 14 16

mm. 50 80 100 150 200 250 300 350 400

Factor

Globe

Pattern

Gal./Min. (gpm.) 54 115 200 440 770 1245 1725 2300 3130

Litres/Sec. (l/s.) 13 27.6 48 105.6 184.8 299 414 552 706

Angle

Pattern

Gal./Min. (gpm.) 61 139 240 541 990 1575 2500* 3060* 4200*

Litres/Sec. (l/s.) 14.6 33.4 58 130 238 378 600 734.4 1008

Equivalent

Length

Pipe

Globe

Pattern

Feet (ft.) 51 85 116 211 291 347 467 422 503

Meters (m.) 15.5 25.9 35.3 64.2 88.6 105.8 142.4 128.6 153.6

Angle

Pattern

Feet (ft.) 40 58 80 139 176 217 222* 238* 247*

Meters (m.) 12.1 17.8 24.5 42.5 53.6 66.1 67.8 72.7 75.2

Factor

Globe Pattern 5.6 6.0 5.9 6.2 6.1 5.8 6.1 5.0 4.6

Angle Pattern 4.4 4.1 4.1 4.1 3.7 3.6 2.9 2.8 2.6

Liquid Displaced from

Cover Chamber When

Valve Opens

Fl. Oz — — — — — — — — —

U.S. Gal. 0.3 .08 .17 .53 1.26 2.51 4.0 6.5 9.6

ml121 303 643 — — — — — —

Litres — — — 2.0 4.8 9.5 15.1 24.6 36.2

10 20 30 40 60 80 100 200 500 1000 2000 5000 10,000 20,000 50,000

100

Angle Valve Sizes (Inches)

Globe Valve Sizes (Inches) 4681012

810

14 16

Pressure Drop — psi

Flow Rate gpm (water)

Model 100-04 Flow Chart (Based on normal flow through a wide open valve)

K = 894d 4

L = K

12 f

K Factor (Resistance Coefficient)

The Value of K is calculated from the formula:

(U.S. system units)

Equivalent Lengthof Pipe

Equivalent lengths of pipe (L) are determined from the formula:

(U.S. system units)

Fluid Velocity

Fluid velocity can be calculated from the followingformula:

(U.S. system units)

V= .4085Q

CVFactor

Formulas for computingC Factor,Flow(Q) and Pressure Drop

V ( P):

CV=Q

PCV

QPCV

Where:

U.S. (gpm) @1psi differential at 60 Fwater

(l/s) @1bar (14.5PSIG) differential

at 15 C water

inside pipe diameter of Schedule 40 Steel Pipe (inches)

friction factor for clean,newSchedule 40 pipe

(dimensionless) (from Cameron Hydraulic Data,

18th Edition,P3-119)

Resistance Coefficient (calculated)

Equivalent Length of Pipe (feet)

FlowRate in U.S. (gpm) or (l/s)

Fluid Velocity (feet per second) or (meters per second)

Pressure Dropin (psi) or (bar)

Functional Data Model 100-04

*Estimated

CLA-VAL

1701 Placentia Ave •Costa Mesa CA 92627 •Phone: 949-722-4800 •Fax: 949-548-5441 •E-mail: [email protected] •www.cla-val.com

•

Printed in USA

•

Specifications subject to change without notice.

Cla- al 100-04 Hy-Check Main alve Dimensions

Service

Cla-Val Control Valves operate with maximum efficiency when mounted in horizontal piping with the main valve cover UP, however, other

positions are acceptable. Due to component size and weight of 8 inch and larger valves, installation with cover UP is advisable. We recommend

isolation valves be installed on inlet and outlet for maintenance. Adequate space above and around the valve for service personnel should be

considered essential. A regular maintenance program should be established based on the specific application data. However, we recommend a

thorough inspection be done at least once a year. Consult factory for specific recommendations.

E-100-04 (R-02/2018)

Inlet DD

100-04

Flanged

(MAX)

Inlet Outlet

B(Diameter)

Valve Size (Inches)

A150 ANSI

AA 300 ANSI

BDiameter

CMaximum

D150 ANSI

DD 300 ANSI

F150 ANSI

FF 300 ANSI

G150 ANSI

GG 300 ANSI

HNPT Body Tapping

JNPT Cover Center Plug

KNPT Cover Tapping

Stem Travel

Approx. Ship Weight (lbs)

15.00

15.62

11.50

10.62

7.50

7.81

3.19

4.50

5.00

5.31

0.75

1.10

140

9.38

10.00

6.62

6.50

4.75

5.00

1.50

2.50

3.25

0.38

0.50

0.38

0.60

12.00

13.25

9.12

8.19

6.00

6.38

2.56

3.75

4.13

4.00

4.38

0.50

.080

20.00

21.00

15.75

13.38

10.00

10.50

4.31

5.50

6.25

6.00

6.50

0.75

1.70

285

25.38

26.38

20.00

16.00

12.69

13.19

5.31

6.75

7.50

8.00

8.50

1.00

2.30

500

29.75

31.12

23.62

17.12

14.88

15.56

9.25

8.00

8.75

8.62

9.31

1.00

2.80

780

34.00

35.50

28.00

20.88

17.00

17.75

10.75

9.50

10.25

13.75

14.50

1.00

1.25

1.00

3.40

1165

39.00

40.50

32.75

24.19

19.50

20.25

12.62

10.50

11.50

14.88

15.62

1.00

1.50

1.00

4.00

1500

41.38

43.50

35.50

25.00

20.69

21.75

15.50

11.75

12.75

15.69

16.50

1.00

2.00

1.00

4.50

2265

Valve Size (mm)

A150 ANSI

AA 300 ANSI

BDiameter

CMaximum

D150 ANSI

DD 300 ANSI

F150 ANSI

FF 300 ANSI

G150 ANSI

GG 300 ANSI

HNPT Body Tapping

JNPT Cover Center Plug

KNPT Cover Tapping

Stem Travel

Approx. Ship Weight (kgs)

100

381

397

292

270

191

200

114

127

135

0.75

238

254

168

165

121

127

0.38

0.50

0.38

305

337

232

208

152

162

105

102

111

0.50

150

508

533

400

340

254

267

109

140

159

152

165

0.75

129

200

645

670

508

406

322

335

135

171

191

203

216

1.00

227

250

756

790

600

435

378

395

235

203

222

219

236

1.00

354

300

864

902

711

530

432

451

273

241

260

349

368

1.00

1.25

1.00

528

350

991

1029

832

614

495

514

321

267

292

378

397

1.00

1.50

1.00

102

726

400

1051

1105

902

635

526

552

394

298

324

399

419

1.00

2.00

1.00

114

1027

600 Series

Hy-Check Valve

• Built-in Automatic Check Valve

• Improved Flow Characteristics

• Drip Tight, Positive Seating

• Globe or Angle Pattern

• Packless Construction

The Cla-Val Model 100-23 Hy-Check Valve is a hydraulically

operated diaphragm valve with a built-in check feature to

prevent return flow. Available in a globe or angle pattern, it

consists of three parts: body, cover and diaphragm

assembly.

The only moving

part

is the diaphragm assembly

which is guided top and bottom by a precision machined stem

When operating pressure is applied above the non-wicking

diaphragm, a synthetic rubber disc retained on three and

one-half sides forms a drip-tight seal with the renewable

seat. When pressure above the diaphragm is relieved the

valve opens wide. The rate of closing or opening can be

controlled by modulating the flow into or out of the

diaphragm chamber. When a pressure reversal occurs the

split valve stem will allow the disc retainer assembly to

check closed regardless of the position of the

diaphragm.

The Model 100-23 is used on system applications requiring

remote control, pressure regulation, solenoid control, rate of

flow control, liquid level control, or wherever a positive

check feature is necessary to prevent reverse flow.

Principle of Operation

Full Open Operation

When pressure in the

cover chamber

is relieved to a zone of lower

pressure, the line pressure at the

valve inlet opens the valve, allowing

full flow.

Check Action

When a static condition or pressure

reversal occurs, the split stem

design allows the valve to instantly

check closed. Return flow is

prevented regardless of the

diaphragm's position.

Tight Closing Operation

When pressure from the valve inlet

is applied to the cover chamber, the

valve closes drip-tight.

On-Off Control On-Off Control Modulating

Control

Note: For optimum operation of built-in check feature, installation with stem vertically up is recommended.

MODEL 100-23

see page 2 for

approvals

Dieses Handbuch passt für folgende Modelle

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