Pneumatic Pressure Repeatability Testing Bench
The Pneumatic Pressure Repeatability Testing Bench is a precision device designed to perform sealedness, housing strength, and repeatability tests of workpieces under high-pressure conditions. Utilizing compressed air as the power source, the bench combines proportional control valves and hydraulic clamping for accurate pressure application. It is widely used in research, inspection, and production environments to ensure the safety and reliability of pressure-bearing equipment such as valves, pipelines, and fittings.
Application
The Pneumatic Pressure Repeatability Testing Bench is used for:
Housing strength tests of pressure-bearing components.
Sealedness tests for valves, pipelines, and fittings.
Repeatability tests for pressure-reducing valves.
Standards
DIN 33822, EN 88, EN 334
Features
Compressed air power source with proportional pressure control.
Hydraulic clamping ensures accurate and safe sealing of the workpiece.
Adjustable output pressure with explosion-proof design.
Compact, lightweight, and easy to operate.
Reliable performance suitable for valves, pipelines, fittings, and other pressure equipment.
Computer-controlled system with data acquisition and test curve generation.
Technical Parameters
| Parameter | Specification |
|---|---|
| Output pressure | ≤5 Bar |
| Operating temperature | 5℃–50℃ |
| Sensor accuracy | ±0.5% FS (includes nonlinearity, repeatability, hysteresis) |
| Control system | Computer + acquisition card + control software |
| Test medium | Compressed air |
Working Principle
The Pneumatic Pressure Repeatability Testing Bench uses compressed air as the driving source. The output gas pressure is proportionally increased through an electric proportional valve to generate pressure curves. The workpiece is hydraulically clamped and sealed. The pressure sensor continuously monitors the output, and the computer-controlled system records the data, evaluates repeatability, and ensures test safety.
Main Configuration List
| No. | Name |
|---|---|
| 1 | Air source processing element |
| 2 | High/low pressure solenoid directional valve |
| 3 | Cylinder |
| 4 | Booster pump |
| 5 | Digital pressure gauge |
| 6 | Pneumatic needle valve |
| 7 | Accumulator |
| 8 | Computer control software |
| 9 | Electric proportional valve |
| 10 | Unloading needle valve |
Equipment Operation Instructions
Connect the air source to the input interface.
Place the pressure-regulating valve or test component in the designated fixture.
Use the interface to move and clamp the workpiece in position.
Start the computer-controlled test sequence and monitor the output pressure.
FAQ
1. What is this product?
The Pneumatic Pressure Repeatability Testing Bench is a precision instrument designed to test sealedness, housing strength, and repeatability of pressure-bearing components.
2. What is it used for?
It is used to verify the safety, performance, and reliability of valves, pipelines, fittings, and pressure-reducing devices.
3. How does it work?
Compressed air is regulated and applied to the workpiece. Pressure is monitored by sensors, and hydraulic clamping ensures proper sealing. The system records pressure curves and evaluates repeatability.
4. Why is it important?
It ensures that pressure-bearing equipment meets safety standards and performance requirements, preventing failures in industrial or consumer applications.
5. What components can be tested?
Valves, pipelines, fittings, and pressure-reducing devices within the bench’s pressure range.
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