Dueperthal DUEPERTHAL Fire-Resistant Safety Cabinet with Pneumatic Folding Door

Overview

The Dueperthal Fire-Resistant Safety Cabinet with Pneumatic Folding Door is an engineered solution for secure, code-compliant storage of hazardous substances in laboratory, pharmaceutical, chemical manufacturing, and research environments. Designed and manufactured in Germany to stringent European fire safety standards, this cabinet employs a dual-layer steel construction with intumescent fire-seal technology to deliver certified 90-minute fire resistance (DIN 18604). Its pneumatic folding door system—actuated by dual gas springs—ensures smooth, controlled, low-effort opening and closing while maintaining positive sealing integrity under thermal stress. Unlike conventional hinged cabinets, the folding mechanism minimizes footprint intrusion during operation and eliminates pinch-point hazards, supporting ergonomic access in high-density lab layouts. The cabinet operates on passive fire protection principles: during exposure to fire, the insulation layer expands to form a carbonaceous char barrier, preserving internal temperature below 180 °C for ≥90 minutes—sufficient time for evacuation, suppression response, and structural containment per EN 1363-1 test protocols.

Key Features

• Dual-pneumatic gas spring system enabling one-handed, vibration-dampened folding door operation with adjustable damping force and fail-safe hold-open function
• 90-minute fire resistance validated per DIN 18604:2019 (Fire Classification F90) and tested under full-scale furnace conditions at accredited European laboratories
• Double-walled construction with 38 mm mineral wool insulation (non-combustible, zero halogen emission) and integrated thermal break design
• Self-closing mechanism with automatic latch engagement at 50 °C ambient rise—compliant with German TRGS 510 and EU Directive 2014/34/EU (ATEX) Annex II requirements
• Leak-tight sump base (1.5 mm deep, fully welded) capable of retaining 110% of largest container volume; optional polyethylene spill containment liner available
• Electrostatically applied epoxy-polyester powder coating (RAL 3000 Flame Red standard; custom RAL options upon request) with corrosion resistance rated to ISO 12944 C3/C4
• Integrated grounding terminal (M8 brass stud) with 2 m copper grounding cable included—meets IEC 61340-4-1 for electrostatic discharge control

Sample Compatibility & Compliance

This cabinet is validated for storage of Class I–IV flammable liquids (UN 1203, UN 1219, UN 1993), corrosive substances (UN 1789, UN 1830), toxic materials (UN 2811), oxidizers (UN 1479), and pressurized gas cylinders (up to 2 × 50 L Type 1 steel cylinders, mounted vertically with strap retention). It supports storage of aqueous pollutants, microbiological culture media (under ambient or refrigerated configurations), and archival documents requiring fire-rated protection. All models conform to DIN EN 14470-1:2019 (flammable liquid cabinets), DIN EN 14470-2:2019 (corrosive substance cabinets), and are CE-marked under the Machinery Directive 2006/42/EC and Pressure Equipment Directive 2014/68/EU where applicable. Third-party certification includes TÜV Rheinland GS mark (safety), VdS approval for fire performance, and ISO 9001:2015 quality management system registration.

Software & Data Management

While inherently mechanical and non-electronic, the cabinet integrates seamlessly into digital laboratory infrastructure via optional accessories: RFID-tagged door latch sensors (compatible with LabVantage LIMS and Thermo Fisher SampleManager), temperature/humidity data loggers (±0.5 °C accuracy, 2-year battery life), and IoT-ready environmental monitoring nodes (Modbus RTU or BACnet MS/TP output). Audit trails for door open/close events, temperature excursions, and maintenance logs can be exported in CSV or XML format for GLP/GMP compliance reporting. Firmware-upgradable sensor modules support FDA 21 CFR Part 11-compliant electronic signatures when paired with validated enterprise software platforms.

Applications

• Pharmaceutical QC/QA labs storing solvents (e.g., acetone, ethanol, THF), reference standards, and stability study samples under fire-resilient conditions
• Chemical R&D facilities managing reactive intermediates, catalysts, and pyrophoric reagents requiring both fire containment and vapor suppression
• Hospital central supply units securing alcohol-based disinfectants, formalin solutions, and cytotoxic drug preparations
• University chemistry departments complying with local fire codes (e.g., NFPA 45, UK Fire Safety Order 2005) for teaching lab solvent storage
• Environmental testing labs storing EPA Method 525.3 extraction solvents and PFAS-contaminated water samples under chain-of-custody integrity
• Cleanroom environments (ISO Class 5–8) using stainless-steel variants with electropolished surfaces and HEPA-filtered purge air options

FAQ

What fire resistance standard does this cabinet meet?
It complies with DIN 18604:2019 (F90 classification) and EN 14470-1:2019 for flammable liquid storage, verified through independent furnace testing at temperatures exceeding 1000 °C.
Can it be used for acid and alkali storage?
Yes—stainless steel variants (AISI 316L) are available for aggressive corrosives; epoxy-coated carbon steel models are suitable for general acids/bases per EN 14470-2.
Is grounding mandatory?
Yes—grounding is required per IEC 61340-4-1 and TRGS 510 to prevent static ignition during dispensing operations.
Does the pneumatic folding door require maintenance?
Gas springs are rated for 50,000 cycles and require no scheduled lubrication; periodic inspection of seal compression and latch torque is recommended annually.
Are custom sizes or configurations available?
Yes—Dueperthal offers bespoke engineering for recessed wall-mount, under-fume-hood integration, and dual-compartment (flammable + corrosive) configurations with independent ventilation pathways.