The Alfa Laval Unique SSV Long Stroke solves technical challenges for plant managers handling viscous fluids. By extending the stroke length, this valve provides a larger opening than standard single seat valves, allowing particles and thick products to pass through without bridging. This equipment uses a modular platform, allowing for easy integration as either a shut-off valve with up to three ports or a changeover valve with up to five ports. All wetted steel parts are constructed from 1.4404 (316L) stainless steel with a bright surface finish of Ra < 0.8 µm to ensure superior cleanability.

Reliable vacuum-resistant seal design

Process integrity is maintained through a specialized double lip seal that offers full vacuum protection, preventing ingress during demanding pressure shifts. Product safety is supported by static seal leak detection, which provides early warning of wear before contamination occurs. The seals are designed for durability through a defined compression design, ensuring consistent performance throughout an extended service life. This mechanical reliability is supported by a 5-year warranty on the semi-maintainable actuator, reducing total cost of ownership for system integrators.

Optimized maintenance and modularity

The valve architecture provides technical flexibility in demanding environments. Components including the valve bodies, plugs, and actuators are secured with robust clamp rings, allowing for rapid disassembly and re-configuration. For changeover versions, the valve seat is positioned between two bodies for straightforward assembly. This hygienic design eliminates crevices, ensuring that CIP cycles are effective even when processing sticky or fibrous media. Whether configured as NO, NC, or A/A, the pneumatic drive provides consistent operation in the most demanding hygienic environments.