BIS 11006 · ISO 5175 · EN 730-1 certified

Flashback Arrestor Manufacturer & Supplier in India

IIGAS manufactures the full range of flashback arrestors — the KIG-FBA series — certified to BIS 11006, ISO 5175 and EN 730-1: hose and torch arrestors, pipeline and manifold arrestors rated to 25 bar, flanged non-return-valve units up to DN150, and wet-type arrestors for acetylene plants. Built by a company that has made acetylene safely since 1947.

What a flashback arrestor does — and why every line needs one

A flashback arrestor is a safety device that shuts off gas flow and extinguishes the flame when combustion travels back through a gas line toward its source. Without one, a flashback caused by an unpurged line, wrong pressure, a leak or incorrect operation can reach your regulator, manifold, pipeline or cylinder — with destructive results. As the flame travels along a long pipe its velocity can rise to supersonic, detonation levels, which is why arrestors must sit as close to the flame as possible and on the supply side too.

We recommend fitting flashback arrestors on both the fuel-gas line and the oxygen line — at the torch inlet, at the regulator outlet, and on manifolds, cylinder banks and pipelines.

The KIG-FBA series — a model for every duty

ModelDutyMax working pressureConnections
KIG-FBA-PMPipelines & gas manifolds — acetylene, LPG, hydrogen, natural gas, oxygen, air25 barG3/8″, M16×1.5, UNF 9/16″ & 5/8″, 1/4″ NPT (LH fuel / RH oxygen)
KIG-FBA-HPWelding & cutting hose pipes — torch and regulator end2 barHose 5–10 mm, 1/4″–3/8″ BSP, LH/RH
KIG-FBA-NRVNon-return valve + flame trap for LPG, natural gas & hydrogen with air/oxygen25 barThreaded DN6–DN40 · flanged DN32–DN150
KIG-FBA-WTWet-type arrestor for acetylene plants and bulk lines1.5 bar @ 25–50 Nm³/hr1″ and 1½″ flanged

Each arrestor combines up to five safety elements: a contaminant filter, a spring-loaded non-return valve (gas flows one way only), a flame block, a flame trap, and — on fuel-gas models — a temperature-activated flow cut-off that shuts the gas off on a sustained flashback. Other threads, flanged connections, stainless-steel construction and special surface finishes are available on request.

Made to the standards, tested to the standards

KIG-FBA flashback arrestors are manufactured to BIS 11006, ISO 5175 and EN 730-1. To prevent dangerous cross-connection, fuel-gas arrestors use left-hand (LH) threads and oxygen/air arrestors right-hand (RH) threads. Arrestors should be tested for gas tightness and gas return by a qualified person at least once a year, and replaced after any flashback — we support both with spares and replacement programmes.

Because IIGAS designs complete acetylene plants — where wet-type arrestors, dry arrestors and uniflow valve-cum-flashback-arrestors protect every stage from generator to filling manifold — our arrestors are engineered from real plant-operating experience, not just catalogue specifications.

Trusted where a flashback is not an option

IIGAS flashback arrestors protect oxy-fuel and gas-distribution systems at Cochin Shipyard, Oman Drydock, Visakhapatnam Steel Plant, IIT Madras (including stainless-steel and hydrogen service), INOX Air Products and gas pipeline operators across India and the Middle East — alongside the hundreds of acetylene plants we have built worldwide.

Related products

Frequently asked questions

A safety device that stops a flame travelling back through a gas line and shuts off the flow. Fit one at the torch inlet and the regulator outlet, on both the fuel-gas and oxygen lines — and on manifolds, cylinder banks and pipelines feeding them.
KIG-FBA-HP for welding/cutting hoses (2 bar), KIG-FBA-PM for pipelines and manifolds (25 bar), KIG-FBA-NRV threaded or flanged up to DN150 for LPG/natural gas/hydrogen service, and KIG-FBA-WT wet-type for acetylene plants. Tell us your gas, pressure and line size and we will specify the right unit.
Acetylene, LPG, hydrogen, natural gas, oxygen and compressed air. Fuel-gas models use LH threads and oxygen/air models RH threads to prevent cross-connection.
BIS 11006, ISO 5175 and EN 730-1, with up to five safety elements: filter, non-return valve, flame block, flame trap and temperature-activated cut-off on fuel-gas models.
Tested for gas tightness and gas return by a qualified, authorised person at least once a year — and replaced immediately after any flashback event.
Pricing depends on model, size, connection and quantity. Use the Request a Quote form or call +91 98308 02227 / email marketing@iigas.com with your gas, pressure and line size for a quotation.

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