Gas Explosion Pressure Test Machine ISO & ASTM
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The Gas Explosion Pressure Test Apparatus is designed to measure the explosion characteristics of gases in a sealed testing chamber. By filling the evacuated chamber with the test gas and igniting it under controlled conditions, the system automatically records internal pressure and temperature changes. This allows determination of maximum explosion pressure (Pmax), explosion pressure rise rate, and maximum explosion pressure rise rate. The apparatus is suitable for evaluating gas release Pmax values in compliance with UL 9540A standards. Note that gas mixture preparation or liquid flammable substance evaporation equipment is not included and must be configured separately if required.
Features
Electrical control cabinet with metal frame and electrostatic spray finish; resistant to dirt, wear, and oil; easy to clean and visually appealing.
Siemens PLC with analog modules controls vacuum, purging, temperature, and pressure readings; real-time monitoring of temperature, pressure, explosion pressure, and explosion slope.
Test data can be exported as Excel, Word, or PDF for reporting and analysis.
Sphere front features explosion-proof observation window; top equipped with threaded ignition device.
Thermocouple mounted via rear flange, replaceable for maintenance or specific testing needs.
Multiple interfaces for vacuum, sample gas inlet, purging, manual sampling, and pressure monitoring; includes several ½-inch ports for additional customer-configured devices.
Ignition electrode fixed on removable threaded flange for easy cleaning of carbon deposits.
Thermocouple fixed with threaded ferrule interface for easy installation and sealing.
Manual ball valve for post-test gas sampling and analysis.
Accessories
Stainless steel spherical test container
Explosion-proof observation window
Ignition electrode assembly
K-type armored thermocouple with flange and ferrule interfaces
Siemens PLC and analog modules
19-inch touch screen
Electrical control cabinet with industrial PC and data acquisition modules
Manual ball valve
Safety pressure relief valve (2.5 MPa)
Auxiliary nitrogen supply interface
Standards
The system conforms to the following national and international standards:
BS EN 15967:2011 – Determination of maximum explosion pressure and maximum rate of pressure rise of gases and vapours
UL 9540A – Standard for Testing Energy Storage Systems and Equipment
ISO 10156 – Gases and Gas Mixtures – Determination of Flammability Limits
ASTM E1226 – Standard Test Method for Explosibility of Dust Clouds
Parameters
| Unit | Specification |
|---|---|
| Explosion Pressure Acquisition | Dynamic data acquisition card, 24-bit resolution, 128 KS/s sampling frequency |
| Chamber Interior | Built-in 19-inch touch screen, integrated electrical control circuits for mobility |
| Test Container | Sphere structure, internal volume ≈ 20 L, internal radius 168 mm, wall thickness 12 mm, stainless steel, max. pressure 3 MPa |
| Chamber Pressure Rating | Maximum 3 MPa, constant endurance ≥ 2 MPa, engineering safety valve rated 2.5 MPa |
| Ignition Electrode | Center-mounted, diameter 4 mm, tip angle 60°, distance between tips ≈ 5 mm |
| Thermocouple | K-type armored, range 0–1000 °C, accuracy 0.1 °C |
| Explosion Container Dimensions | 1800 (L) × 750 (D) × 1750 (H) mm |
| Control Box Dimensions | 650 (W) × 675 (D) × 1750 (H) mm |
| Power Supply | AC 220 V, 50/60 Hz |
| Weight | Approx. 330 kg |
| Auxiliary Gas Source | Nitrogen |
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