This system is particularly suitable for use in high-risk areas aboard ships, such as engine rooms, boiler rooms, battery rooms, and electrical equipment compartments.

2. Key Features

The Marine HFC-227ea Fire Suppression System is a fully integrated solution that uses a piping network to distribute the fire extinguishing agent. Key features of the system include:

Reliable and precise operation
Good sealing and pressure containment
Three control modes: Pneumatic, Electric, and Emergency Manual

This ensures flexibility in operation and ease of use in various emergency scenarios.

3. Technical Specifications

Model	QMQ2.5/XXN-RG	QMQ4.2/XXN-RG	QMQ5.6/XXN-RG
Storage Pressure	2.5 MPa	4.2 MPa	5.6 MPa
Max Operating Pressure (at +50°C)	4.2 MPa	5.3 MPa	6.7 MPa
Min Operating Pressure (at 0°C)	2.0 MPa	3.6 MPa	4.6 MPa
Filling Density	≤1.12 kg/L	≤0.95 kg/L	≤1.12 kg/L
Cylinder Volume	HFC-227ea Cylinder (L): 2/4/8/10/20/30/40/70/90/120/150/180	Nitrogen Starting Cylinder (L): 4
Design Fire Extinguishing Concentration (Volume)	≤10%
Activation Methods	Electric, Pneumatic, Emergency Manual
Note	"XX" represents the cylinder volume in the model

4. System Components and Operation Principle

4.1 System Components The HFC-227ea Fire Suppression System consists of the following components:

Pressure cylinders
Cylinder valve assemblies
Discharge hoses
One-way liquid valves
Collection manifold
Pneumatic control valves
Remote discharge stations
Pipeline nozzles
Electrical alarm panels
Visual and audible alarm devices

The system operates via two primary activation modes: electric activation and pneumatic activation, with a manual emergency backup option.

4.2 Operating Principle Upon activation, the system releases HFC-227ea, a clean agent that suppresses fires by removing heat and interrupting the combustion process. The extinguishing agent is evenly distributed through a network of nozzles and pipes, providing targeted coverage to the fire-affected areas. The system ensures rapid response to potential fire hazards, enhancing safety on board.

5. HFC-227ea Cylinders

The system utilizes high-performance pressure cylinders designed to store HFC-227ea, a fire suppression agent. Various cylinder sizes are available to meet the specific needs of the vessel.

Cylinder Volume (L)	Cylinder Type	Max Operating Pressure	Thread Connection
2	Seamless Steel	8 MPa	PZ27.8
4	Seamless Steel	8 MPa	PZ27.8
8	Seamless Steel	8 MPa	PZ27.8
10	Seamless Steel	8 MPa	PZ39
20	Seamless Steel	8 MPa	PZ39
30	Seamless Steel	8 MPa	PZ39
40	Seamless Steel	8 MPa	PZ39
70	Seamless Steel	8 MPa	PZ56
90	Welded Steel	5.6 MPa	PZ56
120	Welded Steel	5.6 MPa	M64X2
150	Welded Steel	5.6 MPa	M80X2
180	Welded Steel	5.6 MPa	M80X2

This system is designed to provide an effective, fast-acting, and environmentally friendly fire suppression solution for marine applications. With its versatile activation options and advanced fire suppression technology, it ensures the safety and protection of both crew and critical vessel equipment.

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