Stainless steel combines high mechanical strength with cleanability, thermal stability, and long-term material integrity, making it well suited to demanding membrane processes. It can handle high pressure and repeated temperature changes associated with CIP, while its smooth, non-coated surfaces support effective cleaning and process purity.

Certain applications place requirements on the housing that make stainless steel particularly relevant compared with FRP alternatives. This can include alkaline process fluids, specific water chemistries, elevated temperatures, and hygienic applications in industries such as beverage, food, and pharmaceutical processing, where cleanability and CIP are critical requirements. Material selection should always be based on the specific application and operating conditions.

Yes. Stainless steel is particularly well suited to processes using Cleaning in Place (CIP). Its smooth, cleanable surfaces support effective cleaning, while the material remains stable through the temperature changes associated with CIP procedures. WILA draws on extensive experience from dairy and food processing, where effective, repeatable cleaning and hygienic operation are fundamental process requirements.

Yes. Stainless steel membrane housings are well suited to food and beverage applications, including processes with the highest requirements for hygiene, cleanability, and process reliability. WILA brings more than 25 years of experience with membrane systems and deep roots in the dairy industry, where stringent hygienic requirements, CIP procedures, and compliance with standards such as 3-A and ASME are part of our everyday work.

Yes. Stainless steel retains its strength and material properties across a wide temperature range, making stainless steel membrane housings well suited to processes involving elevated temperatures, including CIP procedures. Unlike materials that may be more sensitive to changes in temperature, stainless steel provides stable and predictable material performance through repeated heating and cooling cycles. Actual operating limits depend on the specific housing configuration, pressure, seals, and other system requirements.

Yes. Stainless steel membrane housings are suitable for RO, NF, UF, and MF filtration across a wide range of operating pressures. Their high mechanical strength makes stainless steel particularly well suited to high-pressure applications, but pressure is only one of the reasons for choosing stainless steel.

For lower-pressure applications, requirements such as hygienic design, cleanability, CIP, temperature resistance, and long-term material integrity can make stainless steel equally relevant. This is why WILA supplies stainless steel membrane housings for a broad range of membrane processes, with the housing designed to match the specific membrane, application, and operating conditions.

Every WILA product comes with a comprehensive documentation package as standard, giving you the essential documentation from day one.
Included as standard:

• Product drawings
• Declaration of Conformity (DoC)
• User manual
• Pressure test certificates for heat exchangers in accordance with PED or ASME, as applicable

For projects with additional documentation, inspection, or traceability requirements, we can provide an extended package tailored to your specifications. This can include material certificates, welding certificates and Welding Procedure Specifications (WPS), surface roughness measurements, X-ray inspection, and dye penetrant testing.

Yes. WILA offers both proven configurations and the engineering capabilities to accommodate project-specific requirements. Our specialized sales team and technical engineers work closely with customers to understand their requirements and identify the right solution. We work with OEMs of different sizes, from the largest system builders in the industry to smaller specialized companies, adapting our products where the application requires it.