Product Overview of Non-Pressurized Wall-Mounted Dry Powder Fire Extinguishing System

I. Overview

FFB-ACTX/ZY  The wall-mounted dry powder fire extinguishing device (hereinafter referred to as the “extinguishing device”) is a new-generation, highly efficient and environmentally friendly system. Fire‑protection product. Its filling is…   ABC   Ultra-fine dry powder extinguishing agent is non-toxic and harmless, does not corrode protected materials, and is safe for human skin and respiratory system. It is non‑irritating, extinguishes fires quickly, and is highly efficient. This fire‑extinguishing device features a simple structure, reliable performance, and convenient installation and maintenance. It can be used for total flooding in enclosed spaces as well as for localized suppression in open areas. It is ideally suited for hazardous environments such as urban utility tunnels, industrial and mining facilities, power plants, substations, and petrochemical plants. An automatic fire-extinguishing device.

Standards for the Production and Testing of Fire Extinguishing Equipment   GA602-2013 “Dry Powder Fire Extinguishing System”

II. Scope of Application

1 .   Firefighting   A   Class A fires: such as fires involving combustible solids like cotton, wood, hemp, paper, rubber, plastics, and tobacco.

2 .   Firefighting   B   Class A fires: such as fires involving flammable liquids like crude oil, heavy oil, diesel, gasoline, and organic solvents, as well as combustible solids that can melt.

3 .   Firefighting   C   Class C fires: such as fires involving flammable gases like coal gas, natural gas, acetylene, and others.

4 .   Firefighting   E   Class A fires: such as those occurring in computer rooms, substations, cable tunnels, cable trenches, and power compartments within urban utility tunnels, among other locations.

Fire involving energized equipment.

This device is not suitable for extinguishing fires involving the following substances:

1.  Chemical substances such as nitrocellulose, explosives, nitrogen oxides, and fluorine, which can undergo oxidation reactions even in the absence of air, together with oxidizing agents;

2.  Reactive metals such as potassium, sodium, magnesium, titanium, and zirconium, as well as their hydrides.

Three .  Composition of the fire suppression system

The fire-extinguishing device consists of an ultra-fine dry powder extinguishing agent, an electric initiator, a solid‑gas conversion agent, a pressure‑resistant steel housing, a six‑pronged nozzle, an aluminum diaphragm, and a safety … The assembly formed by the frame and the mounting components.

4. Model and Main Performance Parameters

1 , Model and Main Performance Parameters Table ( 1 )

2 , Model and Main Performance Parameters Table ( 2 )

Six . Fire suppression system installation

( 1 ) Installation and Usage Instructions for Wall-Mounted Dry Powder Fire Extinguishing Systems

1 • During product transportation, handling, and storage, dropping and rough loading/unloading are strictly prohibited.

2 , The fire suppression system must not be serviced while energized. If maintenance is required, the system’s power supply must be disconnected, and the device’s start-up…

The circulation route is in a short-circuit state.

3 , The safety current for the electrical start-up of the fire-extinguishing system shall not exceed  150mA;

4 , Task testing is prohibited without the authorization of the manufacturer’s representative;

5 , Verify that the internal supply components in the inspection report are complete;

6 , Check whether the device leads are shorted;

( 2 ) Installation method for wall-mounted dry powder fire extinguishing systems

1.  The installation methods for fire suppression systems are as follows:

Insert the expansion screw ( M10 ) Secure it to the precast concrete slab above the protected area, then attach the mounting foot sleeve of the fire suppression device.

Insert it into the mounting bracket and secure it with screws.

7.   Inspection and Maintenance of Fire Extinguishing Systems

1.  The user unit shall establish a maintenance management system and assign a dedicated person to conduct regular inspections.

2.  Fire extinguishing systems shall be inspected at least once every six months. Once a fire extinguishing system has been activated, it must be replaced.

3  The extinguishing agent used during refilling must be   ABC   Ultra-fine dry powder extinguishing agent, and shall comply with  GB4066-2017  Requirements.

4.  Maintenance of fire-extinguishing equipment must be performed by a specialized manufacturer approved by the public security fire supervision authority.

5.  Under normal conditions, the service life of the fire suppression system is  10  Year.

Pressurized 1.2 MPa / Non-pressurized Wall-Mounted Dry Powder Fire Extinguishing System – Frequently Asked Questions

Q: In which types of facilities are pressurized 1.2 MPa and non‑pressurized wall‑mounted dry‑powder fire extinguishing systems suitable for use?

A: Suitable for enclosed, protected spaces such as distribution rooms, cable cabinets, small server rooms, and energy storage cabinets; it can extinguish Class A, B, and C fires, as well as energized electrical fires.

Q: What is the key difference between stored-pressure and non‑stored-pressure wall‑mounted dry powder extinguishing systems?

A: In pressurized systems, the cylinder maintains a constant pressure of 1.2 MPa to store the extinguishing agent year-round; in non‑pressurized systems, there is no internal storage pressure, and the dry powder is propelled by a gas‑generating agent, eliminating the risk of long-term pressure‑induced leakage.

Q: What are the activation methods for wall-mounted dry powder fire suppression systems?

A: The heat‑sensitive glass bulb can activate automatically, or it can be connected to the fire alarm system to enable electrically controlled interlocked activation; both triggering methods are optional.

Q: What are the requirements for wall-mounted installation?

A: Mount the unit securely to the wall of the protected area, ensuring the nozzle is aligned with the protected zone. There must be no obstructions in front of the nozzle to guarantee that the dry powder spray fully covers the entire protected space.

Q: What items should be checked during routine inspections?

A: For stored-pressure models, carefully check that the pressure gauge is within the green normal range; for both types, inspect the casing for rust or damage and verify that the temperature‑sensing glass bulb is intact.

Q: Can it be installed in humid or corrosive gas environments?

A: Long-term use is not recommended; in high-humidity and corrosive environments, the housing is prone to rust, which can compromise the device’s reliability. If use is necessary, appropriate anti-corrosion and moisture-proof measures must be implemented.

Q: How should the site be handled after the system has discharged its extinguishing agent?

A: First, disconnect the power supply, ensure adequate ventilation, and wait for the dust to settle before cleaning. Personnel performing the cleanup must wear masks and safety goggles and take appropriate personal protective measures.

Q: Will dry powder agents damage precision electronic equipment?

A: Dry powder leaves a dusty residue and exhibits slight corrosivity; it should be used with caution in environments housing precision electronic equipment, and thorough cleanup is required after extinguishing the fire.

Q: Can the agent be refilled on-site after it has been dispensed or when the equipment reaches its expiration date?

A: On-site refilling is not supported; after discharge or upon reaching its service life, the entire unit must be replaced, and the used equipment shall be collected and disposed of by a qualified fire‑safety organization.

Q: Does this wall-mounted dry powder system meet the requirements for fire protection project acceptance?

A: The product is accompanied by a fire‑safety inspection report, complies with applicable standards, and, upon installation, can be integrated into the overall fire‑safety acceptance process for the protected area.