Is a quarter turn pneumatic actuator suitable for corrosive media

Housings made from 316 stainless steel resist corrosion from chemicals like acids, salts, or chlorine—ideal for wastewater or chemical processing. For extreme cases, exotic alloys or polymer coatings provide enhanced protection against pitting or degradation.

Seals must withstand the media: Viton handles oils and organic solvents, while EPDM resists water-based corrosives. PTFE seals offer broad chemical resistance but may lack flexibility for high-pressure applications. Avoid standard rubber seals, which degrade quickly in corrosive environments.

Actuators with IP66/IP67 ratings prevent media ingress. Drain ports reduce trapped moisture that accelerates corrosion, while smooth, crevice-free surfaces minimize residue buildup. Some models include sacrificial anodes for marine or saltwater settings.

Highly concentrated acids or oxidizing agents may require specialized designs. Always verify compatibility with the specific corrosive medium using manufacturer guidelines or chemical resistance charts.

Regular cleaning removes corrosive residues, while periodic inspection of seals and coatings identifies early degradation. Re-lubricate with corrosion-inhibiting greases to extend service life in harsh conditions.