Butterfly valves
Alfa Laval butterfly valves are high-performance shut-off valves for use in stainless steel pipe systems of hygienic and high-purity process applications. Its substantial opening area and low flow resistance ensure easy passage of low- to medium-viscosity liquids or liquids containing solids through the valve. This boosts productivity whilst minimizing the use of energy. Perfect for use across the food, beverage, home-personal care, biotech and pharmaceutical industries.
Maximize uptime and product quality with versatile, modular, high-performance shut-off butterfly valves
- Minimized flow obstruction enables easy passage of process fluids, including fluids with concentrations of particles, through the valves
- Low flow resistance for easy passage of liquids with varying levels of viscosity, thereby reducing the energy used to move the fluid through the valve
- Fully modular, interchangeable range to suit any process line requirement, making selection, inline installation, operation and maintenance easy
- Fast, economical maintenance requires no special tools, only wear part replacement of a single component; flange version even easier and faster
- Optional intelligent sensing and control units with quick auto setup function, providing perfect valve control
Simplify routing of food-grade, hygienic and high-purity process fluids with reliable, cost-effective Alfa Laval butterfly valves.
Choose standard, hygienic, high-purity, ATEX, or special flange version for easy removal of the valve body without dismantling further piping setups.
For manual operation, the valves come with handles available in different configurations and optional position indication units. For automated operation, pneumatic actuators are available in different configurations. Across all applications, actuators can be combined with intelligent valve control units that have auto setup capabilities.
Easy to configure and easy to upgrade, Alfa Laval butterfly valves contribute to high plant performance and high product quality.
How does the butterfly valves work?
Alfa Laval butterfly valves can be operated either by means of a pneumatic actuator from a remote location or manually operated 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 automatic operation, a pneumatic actuator converts the motion of the axial piston into a 90° rotation of the shaft. The actuator torque increases as the valve disc comes into contact with the seal ring of the hygienic butterfly valve to secure proper closing of the valve seat.
For manual operation, a handle mechanically locks the stainless steel butterfly valve in open or closed position. Two-position, four-position, regulating 90°-position, and multi-position handles are available. Manual valves can also be mounted with indication units for feedback on the valve position (open/closed).
Options for superior flow control, hygiene, durability and reliability of Alfa Laval butterfly valves, there are automation units with built-in actuators or intelligent valve control units for smart valve control.
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