Standards for Single-Acting Pneumatic Actuators
To ensure safety, reliability, and interoperability, single-acting pneumatic actuators should comply with the following international and industry-specific standards:
1. General Performance & Safety Standards
- ISO 5211: Standardizes mounting dimensions for valve-actuator interfaces
- ISO 6431/VDI 3845: Specifies pneumatic cylinder performance (force, stroke, durability)
- ATEX/IECEx: Certifies explosion-proof operation in hazardous areas (Zone 1/2)
2. Material & Construction Standards
- NACE MR0175: Ensures corrosion resistance for oil/gas (H₂S environments)
- EN 15714-3: Covers design requirements for industrial actuators
3. Functional & Safety Compliance
- SIL 2/3 (IEC 61508): Validates fail-safe reliability for critical shutdown systems
- API 607/6FA: Fire-safe testing for valves in refinery/petrochemical applications
4. Regional Certifications
- CE (EU): Confirms compliance with EU safety and environmental directives
- ASME B16.34 (US): Pressure-temperature ratings for valve assemblies
Key Considerations
- Seals: FDA-compliant materials (e.g., EPDM) for food/pharma applications
- Pressure Ratings: Must match ANSI/ASME Class 150-900 or PN 10-100
- Industries Served: Oil/gas, water treatment, power plants, and chemical processing
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