Double seal valves
Alfa Laval double seal valves are cost-effective mixproof valves that safely handle the simultaneous flow of two different products or fluids through the same valve without the risk of cross-contamination. These standardized top-loaded pneumatic valves are ideal for hygienic applications that require additional safety, leakage detection and Cleaning-in-Place (CIP) across the dairy, food, beverage, home-personal care and many other industries.
Safe, reliable and economical double seal valves for safe separation of two different products in piping systems of hygienic and aseptic processes
- Safely isolates two process fluids or a process fluid and cleaning media without the risk of contamination
- Increases both operational and product safety due to self-draining design
- Produces higher quality products at lower costs using aseptic double seal valves to secure your process
- More uptime secured through fully maintainable actuator for precision valve control
- Low maintenance due to few, yet durable, moving parts and a top-loaded design that provides easy access for disassembly and service
Maximize product safety and process reliability while minimizing costs and contaminant risks with Alfa Laval double seal valves. Handle both process and CIP fluids at the same time with ease. A great alternative to double-seat mixproof valves, these standardized, cost-effective double shutoff valves come in hygienic and aseptic models and are available in a variety of valve body configurations as shutoff valves.
How does a double seal valve work?
Alfa Laval double seal valves are controlled by means of compressed air from a remote location. The pneumatic valves are fitted with two pneumatic normally open (NO) valves – a leakage detection valve and a CIP valve. The valve has a double sealing system with a plug that has two seals; the space between these seals forms a leakage chamber under atmospheric pressure. The leakage detection valve discharges any product leakage to the leakage chamber. The leakage chamber may be cleaned by supplying a CIP system into the leakage detection valve. The double seal valves are insensitive to water hammer in the product line above the plug.
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