Flashback Arrestor №2 — technical overview of the №2 configuration
The Flashback Arrestor №2 from REAL GAZ is a three-function safety fitting: a sintered flame arrester, a spring-loaded non-return valve and a cut-off that closes the gas path after a flame or pressure shock. The №2 reference identifies the configuration for ordering and records.
Gas type, pressure rating and thread are always confirmed in writing before supply.
Gas type, pressure rating and thread are always confirmed in writing before supply.
Reference standards include EN ISO 5175-1, EN ISO 14113 for hoses and ISO 7289 for couplings, suitable for industrial and service use.
The function of each part is simple but important. The sintered element absorbs heat from a flame and cools it below the ignition temperature of the gas mixture; the non-return valve stops gas moving backward; and the cut-off closes the passage if the temperature or pressure rises abnormally. Together they provide layered protection. Most designs can be reset only after inspection, so a tripped unit should be checked by a competent person. We can supply the installation guide, inspection form and recommended spare list. Contact us with your torch model and gas, and we will confirm the correct arrestor. Environmental conditions matter as well. In humid or coastal sites, stainless steel bodies resist corrosion better, while in clean indoor workshops brass is a practical choice. Tell us the ambient conditions and we will suggest the better material for the installation.
🏭 Where Flashback Arrestors №2 Are Used
- ⚙️ Industrial cutting benches — protects regulators from acetylene or propane back-fire;
- 🔬 Heating of pipework — preheat of welds on thick-walled pipes;
- 🔧 Workshop repair stations — mixed-use stations with short hose runs;
- 🚀 Plant shutdown teams — standard equipment sets for temporary work crews.
💡 Why Choose REAL GAZ
- ✅ Three safety functions — arrester, check valve and cut-off in one body;
- 🧪 Material choice — brass for general service, stainless steel for aggressive atmospheres;
- 🎯 Clear configuration — the №2 reference removes guesswork from reorders;
- 🔒 Inspection friendly — design allows simple function testing;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- flame-arrester element inspection;
- non-return valve opening and sealing tests;
- cut-off activation check on samples;
- final leak test and clean packing.
Cylinders and gas equipment comply with ADR / UN transport rules and relevant EN/ISO standards.
📦 Technical Notes
- use a dedicated arrestor for each gas line;
- do not exceed the flow rating, which can overheat the element;
- never clean elements with compressed air or solvents;
- record batch numbers in the equipment register for traceability.
⚙️ Trusted Gas Solutions
REAL GAZ offers the flashback arrestor №2 together with regulators, manifolds and cylinders for customers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA, backed by technical support.
REAL GAZ — three safeguards, one reliable fitting.