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LPP-DPump
2
TECHNICALFEATURES
• 100% Tight
• Full Bore
• Only the Sleeve isin Contact with the Medium
• 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
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-cleaning Larox valves provide100% tight shut-off even if solids havebuilt up on the sleeve wall. Whencompressed, any crystallized particlesflake off the sleeve surface and arewashed downstream.
The standard range is for diametersof 1” to 40”, temperatures from -50°Fto +320°F, and operating pressuresfrom vacuum to 1500 psig.
We provide tailor-made flow controlsolutions precisely in accordance withthe customer specifications.
LAROX MANUAL VALVES
Larox manual valves are ideal for shut off applications thatinvolve abrasive or corrosive slurries, powders or granularsubstances. Our advanced flow control solutions meet eventhe most stringent customer specifications. Larox valvesoffer substantial savings through improved performance,longer service lifetime and lower maintenance costs.
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.MANUAL
VALVES
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STANDARD BODY TYPES
OPEN BODY (PV)
The open body valve is designed for non-hazardousmedia, lower pressures and operating temperatures.This design isolates vibration and tolerates minormisalignments of the pipeline. It is also light-weightand easy to service. Material options includefabricated carbon steel and stainless steel. Openbody range starts from 3” in diameter.
ENCLOSED BODY (PVE)
The enclosed body valve is the most common bodytype. Its enclosed design prevents premature sleevedeterioration and protects the sleeve from theenvironment, making it extremely safe to operate.Enclosed body valves can be manufactured ofcast iron/fabricated carbon steel, stainless steel,aluminium or plastic. Valve diameters beginwith 1”.
SPECIAL BODY TYPES
Our special bodies comply with the internationalfugitive emission legislation set for hazardousprocess media.
ENCLOSED/SEALED BODY (PVE/S)
The enclosed/sealed body valves are designedto add safety to processes involving hazardousmedia. Both the stem and side bars are sealed withO-rings. Body material options include castiron/fabricated carbon steel, stainless steel andaluminium. Enclosed/sealed body valve range startsfrom 1”.
SEALED BODY (PVS)
The sealed body valve is well suited for hazardousmedia and high pressure applications. Completelyenclosed stem and side bars, provide 100%protection against any leakage. There are two bodymaterial options available: cast iron/fabricatedcarbon steel or stainless steel. Sealed body rangehas options starting from 1”.
PV PVE PVSPVE/S
VALVES YOU CAN RELY ON
Larox manual valves are equipped with hand wheel actuators. To ensurereliable operation, the operating mechanism is totally enclosed giving fullprotection against dirt and corrosion. A reduction gear is provided to ease themanual operation in larger diameter valves and higher operating pressures.
Note: All enclosed bodies can be equipped with an alarm sensor for sleeve leakage detection.
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VALVE MODEL SELECTIONEXAMPLE: PVE4M150 - 603LR
PVE
MODEL
PV =open
PVE =enclosed
PVE/S =enclosed/sealed
PVS =sealed
4
SIZE(INCH)
1”-40”
M
ACTUATOR
M = handwheel
150
PRESSURECLASSES(PN)
15 psig
75 psig
150 psig
240 psig
365 psig
600 psig
940 psig
1500 psig
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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 on request
0
BODYMATERIAL*0 = Fe
1 = -
2 = AISI 316
3 = aluminium
4 = other
5 = plastic
3
FLANGESHAPE
type 1 - 4
Determinedby the valvemanufacturer
R
AUXILIARIES
R = inductivelimits
T = mechan. limits
X = other,must be specified
L
OPENINGTAGS
L = openingtags
-
PV PVE PVE with a gear
*) 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
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SLEEVEINNERDIAMETER(MM)
1” - 40”
9.84
SLEEVELENGHT(INCHES)
Depends onthe sleeveinner diameter
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FLANGESHAPE
type 1
type 3
type 4
L
OPENINGTAGS
L = yes
- = none
/ /
Determinedby the valvemanufacturer
(dependingon the valvediameter /pressureclass)
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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
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THE BUILT-IN QUALITY OF THE LAROX VALVE
Larox valve builds on several qualitycomponents. The highly resistant and durablesleeve forms an integral part of the valvestructure and is the only part in contact withthe medium. Centerline closing minimizessleeve stretch.
The encapsulated stem mechanism isprotected and lubricated to ensure trouble-free
operation. Stainless steel stem and sidebarsadd to improved wear and corrosion resistance.
The enclosed Larox valves have externalopen/closed position indicators. Optionalfeatures include an alarm sensor for remoteleakage detection. Maintenance is trouble-free as sleeve changes can be done withoutspecial tools.
Position indicator
Grease nipple
Sleeve adjustment nuts
Pipe bushing
Body seal
Plug
Lower pinch bar
Guide (plate)
Upper pinch bar
Stem nut
Encapsuled stem
Bearing
Center bushing
Sleeve
Side bushing
Larox valve compositionPVE50M10
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Manual valves in 100% open, 50% open and fully closed positions.
MAIN DIMENSIONSOPEN BODY AND ENCLOSED BODY
PV
Am
ax.
EA BB
Em
ax.
C
ma
x. C
Weights
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)
15-365
15-365
15-365
15-240
15-240
15-150
15-75
15-75
15-365
15-365
15-365
15-365
15-365
15-365
15-365
15-240
15-150
15-75
15
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”
5.51”
7.09”
7.48”
8.27”
9.65”
10.94”
13.39”
15.75”
18.90”
22.44”
28.35”
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”
WEIGHT fe (LBS)
48
64
101
147
194
301
367
24
31
35
40
48
79
101
163
233
350
469
614
WEIGHT al (LBS)
-
-
-
-
-
-
-
15
20
20
20
26
37
55
90
163
-
-
-
C (INCHES)
14.57”
16.14”
18.31”
22.05”
27.17”
34.06”
40.16”
10.04”
10.24”
10.43”
11.02”
12.20”
14.57”
16.14”
18.31”
22.05”
27.17”
34.06”
40.16”
Dimensions subject to change without notice. Larger sizes and higher pressures also available.Dimensional drawings for higher pressure ratings available upon request.
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ManuValv
Larox Flowsys Oy • P.O. Box 338 • FI-53101 Lappeenranta, Finland • Tel. +358 201 113 311 • Fax +358 201 113 300e-mail [email protected] • www.larox.fi
Manual 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 [email protected] • WWW.LAROX.US
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