Loputni ventil LKB
Butterfly valves are relatively straightforward on/off routing valves with a substantial opening area and low flow resistance. Where hygiene standards are important, these are ideal for use with low and medium-viscosity liquids.
Full range, full spectrum
The Alfa Laval LKB butterfly valve range consists of modular units designed to meet the full spectrum of requirements at working pressures from full vacuum to 10 bar. All valves are FDA-compliant, designed for use in a wide range of stainless steel pipe systems, and can be built to comply with virtually any installation standard.
LKB butterfly valves come with several features that ensure reliability performance. A highly polished stainless steel disc with surface smoothness down to Ra<0.8 µm and bearing bushes clipped onto the disc stems prevent metal-to-metal abrasion and ensure smoother disc movement.
The stem diameter provides particularly low flow resistance, ensuring gentle product treatment for low and medium-viscosity products. In addition, Alfa Laval seal technology provides greater thermal stability, better chemical resistance and improved tensile strength.
Manual or automated control
Alfa Laval LKB butterfly valves can be complemented with lockable handle for manual operation of with an actuator and in combination with either a valve indication unit or Alfa Laval ThinkTop valve sensing and control units.
For manual operation: Alfa Laval provides a complete range of handles, including a multi-position lockable handle.
For automated operation: A selection of different actuators is available; special double-spring design enables application of maximum torque to the valve disc at breakaway and seal positions. This makes it easy to integrate these valve units into larger systems operated from a central point, and/or to operate them automatically for maximum efficiency.
- Full range, full spectrum
- Reliability performance
- Manual or automated control
The Alfa Laval LKB Butterfly Valve operates either by means of a pneumatic actuator from a remote location or manually by means of a handle. The actuator comes in three standard versions: normally closed (NC), normally open (NO), and air/air activated (A/A).
For pneumatic operation, an actuator converts axial piston motion into a 90° rotation of the shaft. The actuator torque increases as the valve disc comes into contact with the butterfly valve seal ring to secure proper closing of the valve seat.
For manual operation, a handle mechanically locks the valve in open or closed position. Two-position, four-position, regulating 90°-position, and multi-position handles are available. Manual butterfly valves can also be mounted with indication units for feedback on the valve position (open/closed).
Part of a broad valve range
- Alfa Laval LKB Butterfly Valve
- Alfa Laval LKB UltraPure
- Alfa Laval LKB-F
- Alfa Laval Unique Control LKB
For a broader valve range, explorer the different product categories: ball valves, control/check valves, diaphragm valves, double seal valves, double seat valves, regulating valves, safety valves, sample valves, shutter valves and single seat valves.
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