Ⅰ. Application Scope of Fire Extinguisher Alternating Pressure Tester
Developed by Jinan SUPER, this tester is mainly used for alternating pressure fatigue tests on fire extinguishers and fire-fighting gas cylinders, including dry powder fire extinguishers, water-based fire extinguishers, carbon dioxide cylinders and other types.
It complies with standards: GB/T 9252-1988 Gas Cylinder Fatigue Test Method and GB 4351 Portable Fire Extinguishers.
The equipment can screen out unqualified fire extinguishers with poor performance and potential safety hazards, so as to prevent malfunctions and safety accidents in practical use.
Ⅱ Basic Technical Parameters
Test medium: water, hydraulic oil
Pulse pressure: 0-4MPa (adjustable)
Pressure control accuracy: ±0.5%FS
Pulse frequency: 0~15 times per minute (adjustable)
Pulse pressure waveform: square wave or trapezoidal wave; pulse width can be customized as required
Test stations: 3 sets
 
III. Composition of Fire Extinguisher Alternating Pressure Test Equipment
The test bench consists of three main parts:
Hydraulic system: alternating pressure test pump and pulse generator.
Test cabinet: mainly used for installing test specimens, pressure regulation and system pressure indication.
Electrical control cabinet and computer test system: start buttons and instruments are mounted on the console for centralized control and condition monitoring. The computer system can collect parameters such as test pressure waveform, test cycles and pulse frequency, support report printing and fault alarm function.
IV. Model Selection
Product Name |
Fire Extinguisher Pressure Alternating Testing Machine |
Model |
SUP_MHQ_4 |
Basic Principle |
Apply pulsed test pressure to fire extinguishers via the pulse pump to conduct pulsed pressure tests on test specimens. |
Performance Parameters |
Alternating test pressure |
0~4MPa |
Pressure Control Accuracy |
+2% of the upper limit and -1% of the lower limit of the test pressure value |
Pressure Value Resolution |
0.1MPa |
Pulse test frequency |
0-15 cycles per minute |
Test Medium |
Water or hydraulic oil |
Operation Mode |
Computer Control |
Specimen Mounting Method |
Threaded Connection |
Structure Composition |
Control system, pulse generating device |
Application Scope |
Fire-fighting gas cylinders, fire extinguishers |
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