Alfa Laval LKB-F Butterfly Valve
The Alfa Laval LKB-F butterfly valve is a flange version of the LKB valve, making it easy to remove the valve body without dismantling piping setups. This feature allows it to be easily serviced or replaced with minimal disruption. The valve can be operated manually or automatically with an actuator. Actuators are available in 3 standard versions: normally closed (NC), normally open (NO), or air/air activated (A/A).
LKB-F is available in the following sizes: 1, 1.5, 2, 2.5, 3, 4, and 6 inch.
Alfa Laval is a leading global supplier of products and solutions within the key technology areas of heat transfer, separation, and fluid handling.
Technical Data
Valve
| Max. Product Pressure | 145 psi |
| Min. Product Pressure | Full Vacuum |
| Temperature Range | 15°F to 200°F Max. temp. if valve operates |
Actuator
| Max. Air Pressure | 100 psi |
| Min. Air Pressure, NC and NO | 60 psi |
| Temperature Range | 15°F to 195°F |
| Air Consumption (liters free air) - ø3.35 in | 0.24 x p (bar) |
| Air Consumption (liters free air) - ø5.24 in | 0.95 x p (bar) |
| Weight | ø3.35 in - 6.6 lbs ø5.24 in - 26.4 lbs |
Physical Data
Valve Bodies
| Product Wetted Steel Parts | 304L or 316L |
| Disc | 304 or 316L |
| Other Steel Parts | 304 |
| Rubber Grades | Q, EPDM, FPM, HNBR, or PFA |
| Bushes for Valve Disc | PVDF |
| Finish | Semi-bright |
Actuator
| Actuator Body | 304L |
| Piston | Light alloy (for ø3.35 in: Bronze) Air/air version |
| Seals | NBR |
Standard Design
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, ø3.35" and ø5.24", cover all sizes.
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 LKB is available with either welded ends or Tri-Clamp® sanitary connections.
Options
- Tri-Clamp® or butt weld ends standard (Other components available upon request.
- ThinkTop® for control and indication.
- Green Top - Position indication MS or PS.
- Indication unit with micro switches.*
- Indication unit with inductive proximity switches.
- Handle with two or four positions (standard on 6").
- Handle for electrical position indication.
- Handle with infinite intermediate positions (not for 6").
- Multi-positioning handle with lever handle or pull knob.
- Service tool for actuator.
- Service tool for fitting 1"-1.5" valve discs
Product Resources
See all resources by Alfa LavalSpare Parts
- LKB-F DIN Service Kits
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Type DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100 DN 125 DN 150 EPDM 9611923100 9611923101 9611923102 9611923103 9611923104 9611923105 9611923106 9611923107 9611923108 Silicone 9611923109 9611923110 9611923111 9611923112 9611923113 9611923114 9611923115 9611923116 9611923117 FPM 9611923118 9611923119 9611923120 9611923121 9611923122 9611923123 9611923124 9611923125 9611923126
- LKB-F DIN Spare Parts
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Part DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100 DN 125 DN 150 Diagram Key Valve Body Half, AISI 316L 9612402401 9612402402 9612402403 9612402404 N/A N/A N/A N/A N/A 1 Valve Body Half, Welding, AISI 316L N/A N/A N/A N/A 9612402405 9612402406 9612402407 9612402408 9612402409 1 Disc, AISI 316L 9612073604 9612073704 9612073804 9612073904 9612074004 9612074104 9612074204 9612076904 9611413701 2 Bush Set, 10 pcs 9614464002 9614464002 9614464002 9614464003 9614464003 9614464003 9614464003 9614464008 9614464009 3 Bush Set, 10 pcs 9614464002 9614464002 9614464002 9614464003 9614464003 9614464003 9614464004 9614464008 9614464009 4 Set of Screws and Nuts 9612400101 9612400101 9612400101 9612400102 9612400103 9612400103 9612400104 9612400105 9612400106 6 Flange, AISI 316L 9612402501 9612402502 9612402503 9612402504 9612402505 9612402506 9612402507 9612402508 9612402509 7 - LKB-F ISO Service Kits
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Type 1 1.5 2 2.5 3 4 EPDM 9611923058 9611923059 9611923060 9611923061 9611923062 9611923063 Silicone 9611923064 9611923065 9611923066 9611923067 9611923068 9611923069 FPM 9611923070 9611923071 9611923072 9611923073 9611923074 9611923099 HNBR 9611923310 9611923311 9611923312 9611923313 9611923314 9611923315 - LKB-F ISO Spare Parts
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Part 1 1.5 2 2.5 3 4 Diagram Key Valve Body Half, AISI 316L 9612402410 9612402411 9612402412 9612402413 9612402414 9612402415 1 Valve Body Half, AISI 304L 9611413680 9611411690 9611411770 9611411850 9611411930 9612046301 1 Disc, AISI 304 9611413680 9611411690 9611411770 9611411850 9611411930 9612046301 2 Disc, AISI 316L 9611413681 9611411691 9611411771 9611411851 9611411931 9612046302 2 Bush Set, 10 pcs 9614464002 9614464001 9614464002 9614464003 9614464004 9614464006 3 Bush Set, 10 pcs 9614464002 9614464001 9614464002 9614464003 9614464004 9614464006 4 Set of Screws and Nuts 9612400101 9612400101 9612400102 9612400102 9612400103 9612400104 6 Flange, AISI 316L 9612402510 9612402511 9612402512 9612402513 9612402514 9612402515 7
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