What is the required safety distance, in meters, between the air compressor room and the factory building?

Core Factors Influencing the Safety Distance Between the Air Compressor Room and the Factory Building

The safety distance (fire separation distance) between the air compressor room and the factory building is not an absolute, fixed value; rather, it is influenced by a combination of engineering and fire‑protection factors. When planning the plant site, the following key considerations should be given primary attention:

• Fire resistance rating of a buildingThe fire resistance rating (Class I, Class II, Class III, or Class IV) of the factory building and the air compressor room directly determines the required fire separation distances for the foundation.
• Classification of Fire Hazard in Production: Compressor rooms are typically classified as Class D or Class E in terms of fire hazard, while the fire‑hazard classification (Class A, B, C, D, or E) of the main plant building significantly influences the spacing requirements between the two.
• Types and Parameters of Air Compressors: Air compressors with varying displacements, pressure ratings, and cooling methods (water-cooled or air-cooled) exhibit distinct potential risks and heat‑dissipation requirements, leading to differing spatial‑layout considerations.

Reference Standards for Fire Separation Distances in Standalone Construction

When the air compressor room is arranged as a standalone building within the plant site, its fire separation distance from adjacent buildings must strictly comply with the relevant national codes for architectural design and fire protection. In general, the determination of the required safety distance should follow the principles outlined below:

• Standard spacing: If both the air compressor room and the adjacent factory building are Class II fire-resistant structures, and the main factory building is classified as a Class C, D, or E fire hazard, the minimum fire separation distance between them should generally not be less than10 meters.
• Adjustment when the fire resistance rating is reduced: If the fire resistance rating of one or both parties is reduced to Grade 3 or Grade 4, the required fire separation distance must be increased accordingly, typically by12 meters to 14 metersOr even farther.
• Special Factory RequirementsIf the main plant building is classified as a Class A or Class B high‑fire‑hazard area, the safety distance between it and the air compressor room must be significantly increased, and stricter explosion‑proof and isolation requirements must be met.

Regulatory requirements for adjacent construction and joint construction

When land resources are scarce or process layout requirements dictate, the compressed air compressor room is sometimes built adjacent to the main plant building or located inside it. In such cases, the concept of safety distance is transformed into…Fire Separation Requirements:

• Firewall separationWhen buildings are constructed adjacent to one another, they must be strictly separated by a fire-resistant wall without any door or window openings, and the fire-resistance rating of such wall must comply with applicable code requirements.
• Independent emergency exitThe air compressor room shall be provided with a separate, direct exit to the outdoors, ensuring that personnel can evacuate quickly in an emergency and that this exit does not intersect with the main plant building’s evacuation routes.
• Ventilation and Explosion Relief: The air compressor room must be equipped with adequate natural or mechanical ventilation, and pressure-relief devices shall be installed where necessary to prevent secondary hazards caused by high temperatures or gas accumulation.

Recommendations for Factory Site Planning and Daily Safety Management

In addition to meeting stringent requirements for physical distance and architectural separation, the safe management of compressor rooms must also emphasize attention to detail in day-to-day operations:

• Keep fire escape routes clear.Regardless of the set safety distance, a fire‑access lane of adequate width must be maintained around the air compressor room to ensure unobstructed passage and operations for fire‑fighting vehicles.
• Stay away from sources of danger.The air intake of the compressor room shall be located away from areas that emit dust, harmful gases, or corrosive substances, and shall also be kept clear of high-temperature heat sources and storage areas for flammable and explosive materials.
• Regular fire drills and maintenanceRegularly inspect and maintain the fire extinguishers, fire alarm system, and automatic fire suppression devices in the air compressor room to ensure that all fire protection equipment is in good working order and ready for use.

In real-world engineering projects, the specific safety distance between the air compressor room and the production building must be precisely calculated and documented in design drawings by a qualified design institute, in accordance with the latest national fire safety codes and on-site survey data. Do not rely on experience alone to proceed with construction.