ASEPCO diaphragm valves for Biotechnology

• Fully traceable materials – Valves are made from fully traceable materials, regardless of the type of alloy you choose, ensuring they meet your local standards and codes.
• Long-lasting surface finish – They are fully machined, electropolished and passivated as standard, giving you a consistent, long-lasting surface finish.
• Saves you time and money – Our valves are designed to save you time and money. Changing a diaphragm only takes seconds, making your valves simple to inspect, clean and use
• Quality you can rely on – We inspect every valve - not just a representative sample. Each valve has passed stringent quality tests at every stage of production.

Challenging conventional design

The design of the basic weir-style diaphragm valve seal presents a number of issues for process engineers working in the biotechnology and pharmaceutical industry. In typical configurations, a weir in the valve body rises in a fluid path and when the valve is closed, the diaphragm meets the weir to shut off the flow. While a simple technology intended to reduce turbulence and shear, weir-style valves present a number of issues, for example in upstream processing applications they can be difficult to install, prone to leaks, and increase the potential of product contamination.

In traditional weir valves, a seal is made by placing a diaphragm between the mating faces of the valve body and actuator. This assembly is then held together with a set of nuts and bolts. The valve bodies are made from stainless steel due to its outstanding chemical compatibility outstanding corrosion resistance when exposed to repeated clean-in-place (CIP) and steam-in-place (SIP) cycles.