Manual operation
A simple turn of the handle will push the compressor downwards on the diaphragm, pressing the diaphragm against the weir of the valve body thereby closing the valve

Pneumatic operation
The actuator controls the axial movement of a piston, thereby opening or closing the valve depending on the actuator function.

Valve bodies have low delta-ferrite content and defined sulphur content as standard in all forged and block valves. Two-way valves, including the ferrules for clamp-end bodies, are made from a single piece of metal. T- and tank-outlet valves are available machined from block in a multitude of configurations and materials.

The aseptic diaphragm valves are built around a weir-type design and is available with hard or  soft compounds from PTFE with EPDM as backing to a pure EPDM diaphragm. They can be operated manually or with pneumatic actuators that come with a range of sensing and control equipment, including control units, position indicators, stroke limiters and valve positioners.

The valves come with Alfa Laval Q-doc, a comprehensive documentation package that provides full transparency of the entire supply chain. This helps smooth purchasing and installation procedures and facilitates qualification, validation and change control procedures. Based on GDP, Q-doc covers every aspect of biotech and pharmaceutical equipment supply and provides customers with transparent and well-documented quality assurance of the sourced equipment.