Alfalaval LKB User manual

HYGIENIC EQUIPMENT FOR FOOD & LIFE SCIENCES
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kyManual or Automatic - it’s your Choice
LKB Automatic or Manual Butterfly Valve
LKB-F butterfly valve with LKLA actuator
LKB butterfly valve with handle 1.1
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Application
LKB is a sanitary automatically or manually operated butterfly valve for
use in stainless steel pipe systems.
Working principle
LKB is either remote-controlled by means of an actuator or manually
operated by means of a handle.
The actuator is made in three standard versions, normally closed (NC),
normally open (NO) and air/air activated (A/A).
The actuator is designed so that an axial movement of a piston is
transformed into a 90° rotation of a shaft. The torque of the actuator is
increased when the valve disc contacts the seal ring of the butterfly
valve.
The handle for manual operation mechanically locks the valve in its
open or closed position.
The handles for the valve sizes DN125 and DN150, which are designed
for locking in two intermediate positions, enables adjusting of the
valve, so that the flow rate can be regulated.
Standard design
LKB is available in three versions, LKB for ISO tubes, LKB-2 for DIN
tubes and LKB-F for flange connection.
The valve consists of two valve body halves, valve disc, bushes for the
disc stem and seal ring. LKB-F also consists of two flanges and two
flange seal rings. The valve is assembled by means of screws and nuts.
Two actuator sizes, ø85mm and ø133mm, cover all valve sizes. The
actuator is available in two versions, LKLA and LKLA-T.
The actuator is fitted onto the valve by means of a bracket and screws.
(The actuator can also be fitted onto ball valves by means of special
brackets).
The handle for manual operation is fitted onto the valve by means of a
cap/block system and a screw.
The valve has welding ends as standard, but LKB and LKB-2 can also
be supplied with fittings.
Control Equipment
Control and indication is possible in connection with the
remote-controlled LKB valve. See "Options".
LKLA-T can be fitted with ThinkTop®.
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OC TO B E R 2008
Gillain & Co NV | Boomsesteenweg 85, B-2630 Aartselaar | Tel. [phone], Fax [phone] | [email protected] | www.gillain.com

HYGIENIC EQUIPMENT FOR FOOD & LIFE SCIENCES
Torque diagrams - Actuator
LKLA ø85 mm: LKLA ø133 mm:
Torque values (for rotating the valve disc in a dry seal ring)
Size Max. Nm
25mm/DN25 15
DN32 15
38mm/DN40 15
51mm/DN50 20
63.5mm/DN65 25
76mm/DN80 30
101.6mm/DN100 35
DN125 50
DN150 120
Angular motion of actuator:
1. Closing - Spring activated
2. Opening - Air activated
3. Closing - Air activated
4. Opening - Spring activated
5. Closing
6. Opening
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HYGIENIC EQUIPMENT FOR FOOD & LIFE SCIENCES
Fig. 1. Dimensions - valve.
a. LKB-F.
b. LKB with welding ends.
Note! LKB sizes DN 125 and 150 are with six screws.
c. LKB with male part/nut and liner.
Fig. 2. Dimensions - actuators.
a. Without coupling. b. With coupling.
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HYGIENIC EQUIPMENT FOR FOOD & LIFE SCIENCES
Dimensions (mm) - Valve
LKB, LKB-2, LKB-F:
Size 25 38 51 63.5 76.1 101.6 DN DN DN DN DN DN DN DN DN
mm mm mm mm mm mm 25 32 40 50 65 80 100 125 150
A 42.0 42.0 61.0 61.0 79.5 106.0 42.0 42.0 42.0 61.0 61.0 79.0 106.0 106.0 98.0
B 15.5 16.7 16.6 17.5 16.6 16.0 14.7 15.9 16.7 16.6 17.5 16.0 16.0 18.0 18.0
C 49.0 49.0 58.5 69.5 73.5 93.0 48.0 49.0 54.0 63.0 75.0 79.0 93.0 115.0 122.0
OD 25.6 38.6 51.6 64.1 76.6 102.2 30.0 36.0 42.0 54.0 70.0 85.0 104.0 129.0 154.0
ID 22.5 35.5 48.5 60.5 72.0 97.6 26.0 32.0 38.0 50.0 66.0 81.0 100.0 125.0 150.0
t 1.55 1.55 1.55 1.8 2.3 2.3 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0
E 32.5 32.5 42.0 52.0 57.0 77.0 33.3 33.3 37.7 46.6 57.3 63.0 77.0 96.7 104.0
F 78.0 78.0 99.0 117.0 132.0 169.0 79.0 79.0 86.5 105.7 125.0 143.0 169.0 199.0 215.0
G 8.0 8.0 8.0 8.0 10.0 12.0 8.0 8.0 8.0 8.0 10.0 10.0 12.0 14.0 15.0
H147.0 47.0 52.0 54.0 62.0 80.0 47.0 47.0 47.0 52.0 62.0 64.0 80.0 110.0 80.0
H283.0 83.0 92.0 92.0 114.0 132.0 83.0 83.0 83.0 92.0 114.0 116.0 132.0 136.0 152.0
J 82.0 82.0 92.0 102.0 107.0 127.0 74.0 74.0 78.0 88.0 98.0 104.0 118.0 150.0 161.0
K 120.0 120.0 120.0 120.0 162.0 162.0 120.0 120.0 120.0 120.0 162.0 162.0 162.0 223.0 338.0
L IDF/ISO 45.0 45.0 47.5 48.5 52.5 61.5 - - - - - - - - -
M IDF/ISO 55.5 55.5 58.0 59.0 63.0 81.5 - - - - - - - - -
L DS 42.0 43.5 46.0 51.0 55.0 64.0 - - - - - - - - -
M DS 54.5 54.5 57.0 59.0 63.0 72.0 - - - - - - - - -
L SMS 38.5 43.5 46.0 51.0 55.0 75.0 - - - - - - - - -
M SMS 51.0 52.5 55.0 56.0 61.0 72.0 - - - - - - - - -
L BS 45.7 45.7 48.2 49.2 53.2 67.0 - - - - - - - - -
M BS 50.5 50.5 53.0 54.0 58.0 71.8 - - - - - - - - -
L DIN 45.5 45.5 48.0 52.0 61.0 70.0 40.0 40.0 37.0 37.0 43.0 48.0 51.0 55.0 115.0
M DIN 61.5 61.5 66.0 67.0 71.0 83.0 45.5 48.5 49.5 54.0 63.0 69.0 84.0 89.0 77.0
L Clamp 45.0 45.0 47.5 48.5 52.5 61.5 - - - - - - - - -
N 26.5 26.5 30.5 40.5 43.5 53.0 27.3 27.3 31.7 35.1 45.8 49.5 53.0 72.7 85.0
P 42.0 42.0 46.0 46.0 58.0 58.0 42.0 42.0 42.0 46.0 58.0 58.0 58.0 62.0 78.0
Weight LKB-F (kg) 1.6 1.3 2.1 2.9 5.0 7.9 1.6 1.6 1.7 2.6 4.7 5.8 7.9 11.7 12.3
Weight LKB/ LKB-2
(kg)
1.2 1.0 1.5 2.1 3.0 4.7 1.2 1.1 1.3 1.8 3.0 3.5 5.1 7.5 9.0
NOTE! Weights are for valves with welding ends and handles.
Dimensions (mm) - Actuator
LKLA and LKLA-T:
Valve 25-63.5 76.1 101.6 101.6 DN125 DN125 DN150 DN150
size DN25-50 DN65-80 DN100 DN100
A1244 242 242 363 246 363 246 363
A2193 191 191 316 195 316 195 316
A3244 244 244 337 244 337 244 337
A4173 173 173 290 173 290 173 290
D 85 85 85 133 85 133 85 133
d 1717173020302030
I 16.5 16.5 16.5 34 16.5 34 16.5 34
S 8 10 12 12 14 14 15 15
Function NC,NO,A/A NC,NO,A/A NC,NO,A/A NC,NO,A/A A/A NC,NO,A/A A/A NC,NO,A/A
Connections
Compressed air
R1/8" (BSP), internal thread.
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HYGIENIC EQUIPMENT FOR FOOD & LIFE SCIENCES
Capacity/Pressure drop diagrams
LKB and LKB-F fully open.
LKB-2 and LKB-F fully open.
NOTE!
For the diagrams the following applies:
Medium: Water (20°C).
Measurement: In accordance with VDI 2173.
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Technical Data
Valve:
Max.productpressure: ..................................1000 kPa (10 bar).
Min.productpressure: ..................................Fullvacuum.
Temperaturerange: .....................................-10°Cto+95°C.
Actuator:
Max.airpressure: ......................................700kPa(7bar).
Min.airpressure,NCandNO: .............................400kPa(4bar).
Temperaturerange: .....................................-25°Cto+90°C.
Airconsumption(litresfreeair)-ø85mm: ......................0.24xp(bar).
Air consumption (litres free air) - ø133 mm: .....................0.95xp(bar).
Weight: ............................................-ø85mm:3kg.
- ø133 mm: 12 kg.
Materials
Valve:
Productwettedsteelparts: ................................1.4307 (304L) or 1.4404 (316L).
Othersteelparts: ......................................1.4307 (304L).
Rubbergrades: .......................................Siliconerubber(Q),EPDMorFluorinatedrubber(FPM),HNBR,PFA.
Bushesforvalvedisc: ...................................PVDF.
Finish: .............................................Semi-bright.
Actuator:
Actuatorbody: ........................................Stainlesssteel1.4307 (304L).
Piston: .............................................Lightalloy(forø85mm:Bronze).
Air/air version.
Seals: .............................................Nitrile(NBR).
Housingforswitches: ...................................Noryl(PPO).
Seal Qualities
PFA:
PFA is a bonded seal in the PTFE family consisting of an EPDM seal with an outside PFA liner. The chemical resistance of PFA is very similar to PTFE,
butoppositetothosePFAisthermoplasticandhasminimalporosity. The seal has high mechanical strength which makes it a perfect choice when
dealing with abrasive products. Furthermore, the design of the PFA seal minimizes the risk of worn seal. Another advantage of the PFA seal is that the
service intervals are prolonged due to a longer lifetime for the seal. The maximal temperature for the PFA seal is 90°C (194°F).
The seal is available in the following sizes: ISO:38, 51, 63.5, 76.1, 101.6 and DIN: 40, 50, 65, 80, 100.
The PFA seal rings fit the LKB-F sizes for ISO and are available as spare. The flange seals are not available in PFA, please select available rubber quality.
EPDM:
The EPDM seal is mechanically strong and normally resistant to ozone and other strong oxidizers, animal and vegetable fats, polar solvents, Acids
and bases, water and aqueous solutions.
The seal is available in all sizes.
Silicone:
Normally resistant to ozone, other strong oxidizers and strong bases. The seal is available in all sizes.
FPM:
Normally resistant to ozone and other oxidizers, hydrocarbons in general, oils, lubricants and greases.
The seal is available in all sizes.
HNBR:
Mechanically strong and normally resistant to ozone and strong oxidizers, animal and vegetable fats, nonpolar solvents, oils and lubricants, water
and aqueous solutions.
The flange seals are not available in HNBR, please select available rubber quality.
For further information on Product- and Chemical Resistance of Flexible Rubber Materials, please see PD sheet 65036.
Gillain & Co NV | Boomsesteenweg 85, B-2630 Aartselaar | Tel. [phone], Fax [phone] | [email protected] | www.gillain.com

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Options
A. Male parts or clamp liners in accordance with required standard.
B. ThinkTop® for control and indication.*
C. Indication unit with micro switches.*
D. Indication unit with inductive proximity switches.*
E. Indication unit with Hall proximity switches.*
F. Explosion proof indication unit with inductive proximity switches.*
G. Bracket for actuator. (Also for ball valves).
H. Handle with two or four positions (standard on DN125 and DN150).
I. Handle for electrical position indication.
J. Handle with infinite intermediate positions (not for DN125 and
DN150).
K. Multipositioning handle**.
L. Lockable Multiposition Handle. Padlock can be mounted as shown
in fig. 5.
Note! Padlock is not delivered.
M. Special cap for 90° turned handle position.
N. Service tool for actuator.
O. Service tool for fitting 25-38 mm (DN25 - DN40) valve discs.
* For further information see Product Catalogue chapter "Control
& Indication".
** A padlock can be mounted on the Lockable Multiposition
Handle as shown in the opposite figure.
Note! Padlock is not delivered.
Fig. 3. Lockable Multiposition Handle with padlock.
1. Padlock
Fig. 4. Dimensions - padlock.
A. Min. 20 mm
B. Min. 35 mm
C. ø6 mm
Fig. 5. Positioning cap.
1. On/Off
2. Multi positioning
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HYGIENIC EQUIPMENT FOR FOOD & LIFE SCIENCES
Ordering
Please state the following when ordering:
- Valve type: LKB, LKB-2 or LKB-F.
- Valve size.
- Connections, if not welding ends.
- Materials: 1.4307 (304L) or 1.4404 (316L).
- Rubber grade: EPDM, Silicone (Q), Fluorinated rubber (FPM),
HNBR or PFA.
- Type of handle, if required.
If ordering with actuator:
- Type: LKLA or LKLA-T.
- Size: ø85mm or ø133mm.
- Function: NC, NO or Air/Air.
- Other options.
Note!
For further details, see also IM 70730.
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ESE00285EN 1001 The information contained herein is correct at the time of issue,
but may be subject to change without prior notice.
How to contact Alfa Laval
Contact details for all countries
are continually updated on our website.
Please visit www.alfalaval.com to
access the information direct.
Gillain & Co NV | Boomsesteenweg 85, B-2630 Aartselaar | Tel. [phone], Fax [phone] | [email protected] | www.gillain.com