Waldner Secuflow EN7

Importance of the Topic

Working safely with high thermal loads and corrosive acids in laboratory fume cupboards is essential to protect personnel and the environment.
Specialized containment solutions meeting updated safety standards ensure reliable performance under extreme conditions.

Objectives and Overview of the Study

This document presents innovative fume cupboard designs for high thermal and acidic loads, reviews relevant standards (EN 14175-7:2012) and introduces the energy-efficient Secuflow EN7 series tailored for demanding laboratory applications.

Methodology and Instrumentation

• Performance testing in a certified laboratory according to EN 14175 parts 3, 4, 6 and 7 and ASHRAE 110P-2005
• Systematic airflow analysis under isothermal and elevated thermal conditions
• Integration of temperature sensors with optical and acoustic alarms
• Supportive flow technology (Secuflow) with variable extract air control via Airflow Controller AC
• Optional fume scrubber, neutralisation unit and BMS interface for alarm relays

Main Results and Discussion

• EN 14175-7:2012 specifies requirements for fume cupboards handling heat sources up to 4 kW/m and aggressive acid vapours
• Materials selected for chemical resistance and thermal stability against perchloric, hydrofluoric, sulfuric acids and aqua regia
• Secuflow EN7 reduces extract air volumes (450–900 m³/h) while maintaining containment under thermal stress
• Real-time temperature monitoring and alarms enhance user protection during fluctuating heat loads
• Modular options for perchloric acid sprinkler systems and neutralisation expand applicability

Benefits and Practical Applications

• Energy savings through optimized airflow and lower ventilation requirements
• Enhanced operator safety with acoustic/optical alarms and building management integration
• Versatility for routine laboratory procedures as well as high-heat and acid digestion tasks
• Flexible configurations: bench-mounted or self-supporting frames with integrated service outlets
• Full compliance with international standards for research, QA/QC and industrial analytics

Future Trends and Applications

Emerging developments include intelligent airflow control, IoT-enabled monitoring platforms and advanced materials with superior resistance to heat and aggressive chemicals.
Integration of real-time fume composition analysis and adaptive containment systems will further enhance safety and efficiency.

Conclusion

Fume cupboards designed to EN 14175-7:2012 standards, exemplified by the Secuflow EN7, offer robust solutions for high thermal and acid applications.
Combining optimized flow technology, real-time monitoring and modular design meets modern laboratory demands for safety, energy efficiency and flexibility.

Reference

No external literature was cited in the source document.