The system adopts motor-fan pressurization as the main power source, and the test process is controlled through computer + PLC control with data acquisition. The equipment is designed as a comprehensive testing platform for petroleum tank accessories, integrating different test functions into one system.
For breather valves and hydraulic safety valves, the system can perform opening pressure, ventilation volume, and leakage related tests. For flame arresters, it can perform ventilation volume–pressure loss testing. The technical proposal also states that the system can perform non-standard ultra-high-pressure tests within ±50 kPa for breather valve opening pressure and leakage.
| Item |
Specification |
| Model |
MST300-GTXS-CQ-F |
| Tested Accessories |
Breather valve, hydraulic safety valve, tank flame arrester |
| Test Size Range |
DN50–DN300 (breather valve / hydraulic safety valve), DN50–DN250 (flame arrester) |
| Test Medium |
Compressed air |
| Test Pressure |
±5 kPa, ±50 kPa |
| Test Station |
1 station |
| Fan Capacity |
5400 m³/h, ±3 kPa |
| Flowmeter |
6000 m³/h |
| Motor |
AC380V, 15 KW |
| Frequency Converter |
18.5 KW |
| Air Compressor |
140 L/min, 0.8 MPa |
| Flow Calibration Accuracy |
1.0% FS |
| Pressure Calibration Accuracy |
0.075% FS |
| Test Chamber Size |
2400 × 1500 × 1600 mm |
| Flame Arrester Test Pipe Footprint |
7500 × 1000 mm |
| Test Storage Tank |
Diameter 1400 mm × Length 4000 mm, approx. 6 m³ |
Features and Functions
- Positive pressure opening pressure test
- Negative pressure opening pressure test
- Positive pressure ventilation flow test
- Negative pressure ventilation flow test
- Flame arrester ventilation flow–pressure loss test
- Non-standard ultra-high-pressure breather valve opening pressure and leakage test within ±50 kPa
- Motor-fan mode for low-pressure large-flow testing
- Air compressor mode for high-pressure small-flow testing
- PLC can work together with the upper computer
- Manual control mode / computer automatic smooth rise mode
- Software can input and set various required test parameters
- Control software: STEP 7-MicroWIN SMART
Product Advantages
- One system is designed to test breather valves, hydraulic safety valves, and flame arresters
- The system combines large-flow and small-flow test power sources through motor-fan mode and air compressor mode
- The equipment supports both manual control and computer automatic smooth rise control
- The flame arrester module is described as a detachable combination design, intended to simplify regular testing and reduce occupied space
- The 6 m³ storage tank module is described as a detachable combination with the mobile test bench for easier routine testing and movement
Our Company Advantages
Highlight focuses on the design and manufacturing of pressure testing equipment and fluid control testing systems, supporting both standard models and project-based customization.
- 16+ years focused on pressure testing equipment and pneumatic boosting systems
- Annual production capacity: 1000+ sets of equipment
- 8000+ customers served
- ISO9001-based quality management implementation and stable manufacturing control
- Strong engineering team for test bench configuration, fixture matching, and technical support
- Export experience supporting international buyers with technical communication and documentation
Main System Structure
The latest technical proposal divides the test bench into the following main systems:
Ventilation fan system
Composed of motor, frequency converter, fan, electric butterfly valve, flowmeter, differential pressure transmitter, accessories, and piping; used to provide large-flow pressure gas source.
Leakage system
Composed of air compressor, air filter, pressure reducing valve, solenoid reversing valve, leakage flowmeter, differential pressure transmitter, pneumatic accessories, and piping; used to provide high-pressure small-flow gas source and leakage testing conditions.
Pipe flame arrester test system
Composed of test pipes, movable supports, differential pressure transmitter, and pipe connection accessories; used for flow–pressure loss testing of pipe flame arresters.
Storage tank test system
Composed of test storage tank, manual butterfly valve, differential pressure transmitter, temperature sensor, and piping accessories; used for breather valve and pipe-end flame arrester testing.
Electrical and measurement system
Includes electrical control box, touch screen, PLC, control software, differential pressure transmitter, and flowmeter for test control and measurement.
