The PLP series air-driven liquid impulse test bench utilizes a liquid medium (such as water or oil) to subject the test specimen to repeated pressurization and cyclic testing in accordance with test requirements. It automatically halts upon reaching the preset number of fatigue cycles. The system features adjustable output pressure, simple operation, and reliable performance.
| Pressure Gauge Fatigue Tester (Gas-driven Liquid Test) Selection Table | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | Boost Ratio (Air ≤0.8MPa) | Applicable Test Pressure Gauge Range (MPa) | Min. Trough Pressure | Max. Peak Pressure | Standard Displacement | Air Consumption (@1Hz) | Waveform | Overpressure Protection | Control Options (Multiple Selections Available) | |||
| Water Filling | Fatigue Frequency | Fatigue Medium (Liquid) | Control Valve | |||||||||
| PLP-8M | 10:1 | 1, 1.6, 2.5, 4, 6 | 0.2 MPa | 8 MPa | ≤300 ml | ≤1.5 Nm³/min | Sine, Triangle, Trapezoid | Not higher than peak pressure | Vacuum/Manual | 0.5 Hz, 1 Hz | Water, Oil, Others | Servo Valve |
| PLP-20M | 25:1 | 2.5, 4, 6, 10, 16 | 0.5 MPa | 20 MPa | ≤120 ml | ≤1.5 Nm³/min | Sine, Triangle, Trapezoid | Not higher than peak pressure | Vacuum/Manual | 0.5 Hz, 1 Hz | Water, Oil, Others | Servo Valve |
| PLP-50M | 64:1 | 6, 10, 16, 25, 40 | 1.2 MPa | 50 MPa | ≤50 ml | ≤1.5 Nm³/min | Sine, Triangle, Trapezoid | Not higher than peak pressure | Vacuum/Manual | 0.5 Hz, 1 Hz | Water, Oil, Others | Servo Valve |
| PLP-80M | 100:1 | 10, 16, 25, 40, 60 | 2.5 MPa | 80 MPa | ≤75 ml | ≤1.5 Nm³/min | Sine, Triangle, Trapezoid | Not higher than peak pressure | Vacuum/Manual | 0.5 Hz | Water, Oil, Others | Servo Valve |
| PLP-160M | 200:1 | 16, 25, 40, 60, 100 | 4 MPa | 160 MPa | ≤75 ml | ≤3 Nm³/min | Sine, Triangle, Trapezoid | Not higher than peak pressure | Vacuum/Manual | 0.5 Hz | Water, Oil, Others | Servo Valve |
| PLP-240M | 300:1 | 25, 40, 60, 100, 160 | 6 MPa | 240 MPa | ≤75 ml | ≤4.5 Nm³/min | Sine, Triangle, Trapezoid | Not higher than peak pressure | Vacuum/Manual | 0.6 Hz | Water, Oil, Others | Servo Valve |
Product Applications
- Pressure gauge fatigue testing
- Pressure transmitter fatigue testing
- Pressure sensor endurance testing
- Repeated pressure cycle testing
- Product durability and reliability testing
- Quality control and R&D testing
Key Advantages
- Air-Driven Liquid Testing – Uses water or oil as the test medium.
- Adjustable Pressure – Test pressure can be adjusted according to requirements.
- Automatic Cycle Stop – Automatically stops when the preset fatigue cycles are completed.
- Simple Operation – Easy to operate and suitable for routine testing.
- Reliable Performance – Provides stable and repeatable pressure cycling tests.
- Wide Application – Suitable for pressure gauges, transmitters, sensors, and other pressure instruments.
