OR1-2.0-20-30

Use of OR1-2.0-20-30 on helicopters and aircraft

The OR1-2.0-20-30 can be used on helicopters such as Mi-8, Mi-26, Mi-171 and other aircraft types where this portable extinguisher is approved by the equipment list. Its role is different from stationary engine or compartment fire-extinguishing systems. The portable unit is used directly by a crew member in the cabin, cargo area, baggage compartment, electrical equipment zone, or other accessible location. The exact placement on board depends on the aircraft layout, emergency equipment scheme, and maintenance documentation.

Fire-extinguishing media for OR1-2.0-20-30

The OR1-2.0-20-30 may be supplied in different executions depending on the extinguishing charge. One common version is halon-based, intended for fires involving flammable liquids, fuel residues, electrical wiring, and equipment where a clean extinguishing agent is required. Another version may use a water / ethylene glycol charge for applications where that medium is specified. Because the charge type changes the operating temperature range and the suitable fire class, the exact execution must be confirmed by the label, passport, and aircraft equipment documentation.

Construction of the OR1-2.0-20-30 unit

The extinguisher consists of a steel cylinder, internal siphon tube, sealed discharge path, and removable operating handle with safety pin and lever. During use, the operator removes the extinguisher from its bracket, releases the safety element, and actuates the handle to discharge the agent through the outlet. The cylinder is designed for aviation service, where compact size, secure stowage, low weight, and reliable manual activation are important. The bracket is also part of the practical installation, because the extinguisher must stay fixed during vibration and aircraft maneuvers.

Halon version of OR1-2.0-20-30

In the halon version, the OR1-2.0-20-30 is useful for extinguishing fires near electrical equipment and wiring, because the agent does not conduct electricity and does not leave the same residue as powder extinguishers. This matters in aircraft cabins and avionics areas, where secondary damage from the extinguishing agent can be a serious issue. The halon version is also used for fuel and oil-related fire sources when permitted by the aircraft documentation. Handling and service must follow the rules for the specific extinguishing agent installed in the cylinder.

Inspection and supply of OR1-2.0-20-30

For procurement or replacement, the full designation OR1-2.0-20-30 / ОР1-2,0-20-30 should be stated together with the required extinguishing medium. It is important to clarify whether the unit is supplied charged or uncharged, with bracket or without bracket, and with current inspection documents. Before aircraft use, the extinguisher should be checked for cylinder condition, weight, charge marking, safety pin, operating handle, bracket fit, corrosion, leakage signs, and passport validity. A portable extinguisher should not be accepted only by appearance, because charge type, service status, and documentation are essential.

Related system equipment: 1-2-4-210, UBSH-1-4-4, PGKts. These positions are grouped by system function and installation context, not as interchangeable replacements.