Multi-Function Gas Safety Device
The SIMAX 3 is a heavy-duty multi-function flashback arrestor designed to protect tapping points, distribution lines, and gas manifold systems in industrial gas installations. Manufactured in Germany and compliant with DIN EN ISO 5175-1 and AS 4603, it combines multiple critical safety functions into one robust, serviceable unit.
Engineered for high-flow manifold applications, the SIMAX 3 delivers reliable protection against flashback, reverse gas flow, overheating, and contamination, making it ideal for central gas distribution systems.
Integrated Safety Functions
Gas non-return valve (NV): prevents reverse flow and dangerous gas mixtures
Flame arrestor (FA): stops flashback propagation
Temperature-sensitive cut-off valve (TV): shuts off gas flow if excessive temperature is reached
Dust filter (DF): protects internal safety components
100% factory tested for performance and safety
Key Specifications
Standards: DIN EN ISO 5175-1, AS 4603
Cracking pressure: 50 mbar, position-independent
Operating temperature: –20 °C to +60 °C
Materials: Brass (2.0401) with spring steel (1.4310)
Max. hose ID: 25 mm
Connections: 1" NPT RH Female
Dimensions / weight: Ø 88 mm × 163 mm / ~3.35 kg
Gas Compatibility & Applications
Key Benefits
All-in-one safety solution for manifolds and distribution systems
Prevents flashback, backflow, and thermal hazards
Robust industrial construction with serviceable design
Approved for demanding industrial and workshop environments
