Sanitary Valves for CDA Systems | Clean, Oil-Free Flow Control for Compressed Dry Air Applications

In modern clean industrial processes—such as semiconductor, pharmaceutical, biotech, and food & beverage industries—CDA (Compressed Dry Air) systems provide a clean, dry, and reliable gas source for pneumatic control, pipeline drying, and gas testing.

Whether used for pneumatic actuation or as part of helium (He) testing or other gas test applications, sanitary valves play a critical role in maintaining system cleanliness, safety, and operational efficiency.

CDA Systems and Sanitary Valves

CDA systems supply oil-free, dry compressed air for:

·         Pneumatic equipment operation (actuators, valves)

·         Pipeline drying and cleaning

·         Leak testing with helium or other test gases

·         High-purity or hygienic gas distribution

Sanitary valves in CDA systems must ensure:

·         Oil-free construction to avoid gas contamination

·         High-pressure safety for frequent actuation

·         Easy in-line maintenance to reduce downtime

·         Reliable sealing for helium test or other gas testing

Key Sanitary Valve Features for CDA Applications

Sanitary valves designed for CDA and gas testing applications typically incorporate:

Hygienic Surface Finish

·         Wetted or gas-contacting parts are polished to 180 Grit RMS (0.51–0.64 micron) or above

·         Smooth surfaces reduce residue adhesion and maintain gas purity

Purge / Test Connections

·         Bosses for purge or test connections are built into the valve body and cap

·         Allow effective gas purging or helium leak testing without valve disassembly

Swing-Out Design

·         Swing-out, serviceable design enables in-line maintenance

·         Seats and seals can be inspected or replaced without disturbing surrounding piping

Blow-Out Proof Stem

·         Blow-out proof stem design ensures operational safety under pressure

·         Ideal for high-frequency actuation or gas test applications

Oil-Free Construction

·         Completely oil-free, ensuring no contamination of CDA or helium test gas

·         Meets stringent hygiene and purity requirements in sensitive processes

Typical CDA Sanitary Valve Applications

·         Pneumatic Control: Operating actuators and valves in automated systems

·         Pipeline Drying and Cleaning: Drying lines in semiconductor or cleanroom processes

·         Helium Test / Leak Detection: Supporting helium or other test gases for leak checks

·         Clean Gas Supply: Maintaining oil-free, high-purity gas in production lines

Benefits of Sanitary Valves in CDA Systems

Choosing sanitary valves for CDA and gas testing applications provides:

·         High sealing reliability and operational safety

·         Easy in-line maintenance and quick serviceability

·         Support for helium testing and other gas test operations

·         Oil-free, hygienic operation

·         Durability under frequent actuation

These benefits help ensure system stability, reduce maintenance cost, and maintain high gas purity standards.

Building a Reliable CDA System

The reliability of a CDA or gas test system depends on the design of every wetted component. Sanitary valves with:

·         Precise surface finish

·         Purge/test connection bosses

·         Swing-out in-line maintenance design

·         Blow-out proof stem

·         Oil-free construction

help ensure clean, safe, and efficient operation in both pneumatic control and helium test applications.

Contact Us / Call to Action

👉 Looking for sanitary valve solutions for your CDA system applications?
Our team can help you select hygienic, oil-free, and leak-proof sanitary valves that meet the requirements of CDA systems and gas testing operations.

📩 Contact us today to discuss your application or request a quotation
✉️ Email: sales@ansonflow.com