uales

The solution you’ve been looking forTHE SOLUTION YOU’VE BEEN LOOKING FORAUTOMATICVALVES

LPP-DPump

2

The operating principle of a Larox valve is simple. In the open position, the valve is at fullbore with no flow restrictions thus making the valve an integral part of the pipeline. Duringclosing, two pinch bars squeeze the sleeve shut on the centerline.AUTOMATIC

VALVES

Over 50,000 Larox valves are currentlyoperating in mining and metalindustries, minerals processing, pulpand paper, chemical processindustries, energy as well as oil andoffshore industries. Numerousapplications also exist in water andeffluent treatment, dairy, food andbeverage production, andpharmaceutical processing plants.

MODULAR DESIGN

Our modular valve design has threemain components: the sleeve, thebody and the actuator. The sleeve isthe only part that is in contact with theprocess medium. The constructionand materials of all three main

components can be tailored to suitmost process conditions. Self-cleaningLarox valves provide 100% tight shut-off even if solids have built up on thesleeve wall. When compressed, anycrystallized particles flake off thesleeve surface and are washeddownstream.

The standard range is for diametersfrom 1” to 40”, temperatures from-50°F to +320°F, and operatingpressures from vacuum to 1500 psig.

We provide tailor-made flow controlsolutions precisely in accordance withthe customer specifications.

LAROX AUTOMATIC VALVES

Larox automatic valves are ideal for shut off or controlapplications that involve abrasive or corrosive slurries,powders or granular substances. Our advanced flow controlsolutions meet even the most stringent customerspecifications. Larox valves offer substantial savings throughimproved performance, longer service lifetime and lowermaintenance costs.

TECHNICALFEATURES

• 100% Tight

• Full Bore

• Only the Sleeve isin Contact with the Medium

• Linear Control Curve

• Centerline Closing

• Flexible Sleeve

PROCESSBENEFITS

• Excellent Wear Resistance

• High Corrosion Resistance

• No Jamming orClogging

• Self-cleaning

• Trouble-freeOperation

• Long ServiceIntervals

• Low MaintenanceCosts

• Reduced Cost of Ownership

3

ACTUATED ON-OFF VALVES

The actuated on-off valves are ideal when remote control is required. The type ofactuator depends on the operating pressure, availability of power sources andother process requirements.

PVE4A75 PVE4H75 PVE4E150

PNEUMATIC ACTUATOR (A)

The standard pneumatic actuatoris double acting, therefore allowingfast opening and closing. Actuatorhousing, tie rods and piston rodsare available in various materials.Short cycle times are achieved byusing quick exhaust valves.

Pneumatic actuators are suitablefor a wide range of industrialapplications. Epoxy paint can beapplied to further improvecorrosion resistance. The standardpneumatic actuators are simpleand economical to install.

FAIL-SAFE OPTIONS

Pneumatic actuators can beequipped with an override (AB)hand wheel for manual fail-safeand a mechanical (AV) or apneumatic spring (AU) forautomatic fail-safe function.

HYDRAULIC ACTUATOR (H)

The compact, double actinghydraulic actuator is designed forapplications where high closingforces are required (high operatingpressure or large valve diameters).Epoxy painted actuators can beequipped with a pilot operatedcheck valve for fail-safe function.

ELECTRIC ACTUATOR (E)

The standard double actingelectric actuator incorporatesbuilt-in limit and torque switches,as well as a manual overridehand wheel. Electric actuatorsare best suited for applicationsrequiring high closing forcessuch as large valve diameters orhigh operating pressures. It isthe recommended actuator foroperating conditions wherepneumatic and hydraulic poweris unavailable.

SPECIAL ACTUATORS

THE PNEUMATIC MOTOR DRIVEN

ACTUATOR is ideal for high forceapplications with limited space.

HYDRAULIC ACTUATORS withan integrated power unit areelectrically driven stand-alonehydraulic units. The need forhydraulic piping is eliminated asthey are mounted directly onto theactuator.

THE WATER HYDRAULIC

ACTUATOR is best suited forapplications where extremecleanliness or fire safety isrequired and the use of hydraulicoil is unacceptable.

4

R Z

S QPV PVE PVE/S PVS

VALVE MODEL SELECTIONEXAMPLE: PVE4AK150 - 603LR

PVE

MODEL

PV =open

PVE =enclosed

PVE/S =enclosed/sealed

PVS =sealed

4

SIZE(INCH)

1”-40”

150

PRESSURECLASSES(PN)

15= 15 psig

75= 75 psig

150=150 psig

240=240 psig

365=365 psig

600=600 psig

940=940 psig

1500=1500 psig

6

FLANGEDRILLINGS

1 = -

2 = DINPN 10

3 = DINPN 16

4 = DINPN 25

5 = DINPN 40

6 = ANSI 150

7 = ANSI 300

8 = BSTABLE D

9A = ASTABLE D

9B = ASTABLE E

9C = JIS 10

9D = JIS 16

Other, must be

specified

0

BODYMATERIAL*0 = Fe

1 = -

2 = AISI 316

3 = aluminium

4 = other

5 = plastic

3

FLANGESHAPE

type 1 - 4

Determinedby the valvemanufacturer

R

AUXILIARIES

L

OPENINGTAGS

L = openingtags

-AK

ACTUATOR

A = pneumatic

AB = with manual override

AK = with electro- pneumatical

positioner

AN = with pneumatical

positioner

AU = with pneumatical

spring

AV = with mechanical

spring

H = hydraulic

HP = withhydraulicpositioner

E = electric

EO = electric forcontrol

Q =quick exhaust valve

R = inductivelimits

S = magneticlimits

T = mechanicallimits

Z = solenoidvalve

X = other,must be specified

*) Fe DN25-200: GRS 250 (EN-GJL-250), epoxy painted K18-E180/2-FeSa 2DN250…: fabricated Fe37B (EN 10025 S235JRG2), epoxy painted K180-E180/2-FeSa 2

AISI 316 DN25-200: casted (EN 10213-4 1.4408)DN250…: fabricated (EN 10088-2 1.4432)

Aluminium DN25-150: aluminium alloy (EN 1706 EN AC 44200) epoxy painted K18-E180/2-FeSa 2

Plastic Ciba 5000 series DN65---150; PA Blend DN250

SLEEVE MODEL SELECTIONEXAMPLE: SBRT 150 4/9.84/3L6

Opening tags

Reinforcing cords

Wear-resistant inner lining

SBRT

SLEEVE MATERIALS

SBRT = styrene butadiene

EPDM= ethylene propylene

CR = chloroprene

CSM = chloro-sulphone-ethene

FPM = fluorine rubber

HNBR= hydrogenated nitrile

IIR = butyl

NBR = nitrile

NBRF = nitrile foodstuffquality

NR = natural rubber

NRF = natural rubberfoodstuff quality

PU = polyurethane

_/PU = PU coatinginside the sleeve

_/M = Larox SensoMatesleeve

150

PRESSURECLASSES(PN)

15=15 psig

75=75 psig

150=150 psig

240=240 psig

365=365 psig

600=600 psig

940=940 psig

1500=1500 psig

4

SLEEVEINNERDIAMETER(INCHES)

1” - 40”

9.84

SLEEVELENGHT(INCHES)

Depends onthe sleeveinner diameter

3

FLANGESHAPE

type 1

type 3

type 4

L

OPENINGTAGS

L = yes

- = none

/ /

Determinedby the valvemanufacturer

(dependingon the valvediameter /pressureclass)

2

FLANGEDRILLINGS

1 = -

2 = DIN PN 10

3 = DIN PN 16

4 = DIN PN 25

5 = DIN PN 40

6 = ANSI 150

7 = ANSI 300

8 = BS TABLE D

9A = AS TABLE D

9B = AS TABLE E

9C = JIS 10

9D = JIS 16

X = other, mustbe specified

5

6

Larox control valves are designed for demandingcontrol applications in which conventional valvesencounter problems with turbulence and wear.Controllability can be further improved withconical sleeves or smart positioners. Elasticsleeves have been applied for improved wearresistance.

STANDARD POSITIONERS

Larox control valve actuator is equipped with a positioner.The standard positioners for various actuators are as follows:

For Pneumatic Actuators

• Electro-pneumatic (AK), input signal 4 - 20 mA• Pneumatic (AN), input signal 3 - 15 psig

For Hydraulic Actuators

• Electro-hydraulic (HP), input signal 4 - 20 mA

For Electric Actuator

• Electronic (EO), input signal 4 - 20 mA

CV VALUES – FULL BORE SLEEVES

DIAMETER MM

OPENING %

0

10

20

30

40

50

60

70

80

90

100

1”

0

10

24

40

57

72

82

90

95

96

96

2.5”

0

65

162

273

382

479

557

612

645

657

657

3”

0

98

246

414

579

725

843

927

976

994

994

4”

0

154

384

647

905

1134

1317

1448

1525

1554

1554

1.25”

0

16

39

66

93

116

135

148

156

157

1554

1.5”

0

25

61

103

145

181

211

232

244

248

248

5”

0

241

601

1010

1414

1772

2059

2263

2384

2428

2428

6”

0

347

865

1455

2037

2552

2964

3258

3432

3497

3497

8”

0

616

1537

2586

3621

4536

5270

5792

6102

6216

6216

10”

0

963

2402

4042

5657

7099

8234

9050

9534

9713

9713

12”

0

1387

3459

5820

8147

10207

11857

13032

13729

13986

13986

14”

0

1888

4708

7922

11089

13893

16139

17738

18687

19037

19037

16”

0

2465

6150

10347

14483

18146

21080

23169

24407

24864

24864

Control valve PVE4AK15

CvQ

N1FP FR p

G=

in whichQ = Volume flow rateG = Specific gravityp = Pressure drop

N1 = Numerical constantFP = Piping geometry factorFR= Reynolds number

CONTROL VALVES FOR DEMANDING DUTIES

Larox control valve sizing is based on the IEC60534 standard(harmonized with ANSI/ISA S75 standards). The valve flow coefficientCv defines the control valve flow capacity i.e. the valve size (diameter).

Cv tables for conical sleeves and larger diameters are available upon request. Contact Larox Flowsys(www.larox.fi/flowsys/) for a complementary Larox control valve sizing program.

2”

0

39

96

162

226

284

329

362

381

388

388

PV PVE

SIZE

PV 3”

PV 4”

PV 5”

PV 6”

PV 8”

PV 10”

PV 12”

PVE 1”

PVE 1.25”

PVE 1.5”

PVE 2”

PVE 2.5”

PVE 3”

PVE 4”

PVE 5”

PVE 6”

PVE 8”

PVE 10”

PVE 12”

PN (PSIG)

15-350

15-350

15-350

15-240

15-240

15-150

15-75

15-350

15-350

15-350

15-350

15-350

15-350

15-350

15-350

15-240

15-240

15-150

15-85

A (INCHES)

7.87”

9.84”

12.20”

14.76”

19.69”

24.61”

29.53”

6.5”

6.5”

6.5”

6.5”

6.5”

7.87”

9.84”

12.20”

14.76”

19.69”

24.61”

29.53”

B (INCHES)

9.25”

10.43”

12.80”

15”

18.15”

21.46”

27.72”

4.92”

5.5”

7.09”

7.48”

8.27”

9.65”

10.94”

13.39”

15.75”

18.90”

22.44”

28.35”

WEIGHT fe (LBS)

31

35

51

57

103

187

220

18

22

26

29

37

59

73

106

165

262

354

466

WEIGHT al (LBS)

-

-

-

-

-

-

-

9

11

13

15

20

29

37

55

95

-

-

-

Dimensions subject to change without notice. Larger sizes and higher pressures also available.Dimensional drawings for higher pressure ratings available upon request.

7

MAIN DIMENSIONS

OPEN AND ENCLOSED BODY

Weights are for body and sleeve without actuatorwithout actuator..

E (INCHES)

3.94”

4.33”

5.31”

5.63”

6.69”

8.27”

9.84”

3.43”

3.54”

4.13”

4.72”

5.35”

6.10”

6.89”

8.27”

9.45”

11.61”

14.96”

17.52”

ManuValve

Larox Flowsys Oy • P.O. Box 338 • FI-53101 Lappeenranta, Finland • Tel. +358 201 113 311 • Fax +358 201 113 300e-mail info@larox.fi • www.larox.�

Automatic 12/06 USA

TYPE APPROVALP-11460

LAROX FLOWSYS INC. • 808 BARKWOOD COURT SUITE N, LINTHICUM, MD 21090

TEL. 410-636-2250 • FAX 410-636-9062 • E-MAIL INFO@LAROX.FI • WWW.LAROX.US

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