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The system consists of a control console and a separate test chamber. The console houses an industrial computer, a pressure gauge, a keyboard and mouse, and an emergency-stop button. The chamber accommodates the test article and connects to the hydraulic circuit. A stack light on the console indicates machine status, including run, warning, and fault states, during operation.
Pressure is regulated electronically through the control software. There is no manual pressure knob; the operator enters the target pressure and waveform parameters digitally, and the system's proportional valves maintain the setpoint. This configuration supports precise, repeatable pressure profiles across long-duration tests. The brand YUANZHI is displayed on the control console.
Parameter Category | subitem | metric |
Pressure Range | peak value | 10 bars (قابل to expand to 16 bars) |
Value | 0–5 bar (adjustable) | |
Pressure Control Accuracy | ±0.2% ~ ±1% FS | |
Pressure Fluctuation Stability | Steady-state pressure holding fluctuation ≤ ±0.05% FS | |
Pressure Sensor | range | 0 ~ 16 bar |
accuracy | 0.1% FS | |
resolution ratio | 0.1 bar | |
response time | ≤ 1 ms | |
output signal | 4–20 mA / 0–10 V (optional) | |
Overpressure Protection Threshold | The rated pressure can be set to 1.05–1.5 times the maximum value, with automatic shutdown upon instantaneous pressure relief. |
parameter | metric |
Pulse Alternating Frequency | 0.01 ~ 2 Hz |
Voltage-rise Slope | 0.05 ~ 10 bar/s (adjustable) |
Blood Pressure Slope | -0.05 to-10 bar/s (adjustable) |
Pressure Maintenance Period Duration | 0.01 to 9999 seconds (set arbitrarily) |
Valve Pressure Maintenance Duration | 0.01 to 9999 seconds (set arbitrarily) |
Support Waveform | Sinusoidal wave / Trapezoidal wave / Pulse square wave / Custom waveform |
Cycle Count Range | 0 to 10 million times (any preset value) |
Counting Accuracy | After ±1 attempt, the system stops automatically and saves data |
Segmented Program | A composite testing program with multiple segments of different pressures and frequencies can be configured. |
parameter | metric |
Test Medium | Deionized water, 50%/70% ethylene glycol aqueous solution (antifreeze) |
Media Box Volume | 60 L (SUS304 stainless steel) |
Media Temperature Range | Room temperature to 70°C(Standard temperature control range: -20°C to 70°C) |
Media Filtration Accuracy | 10 μm |
Ambient Temperature | 5 ~ 40°C |
Ambient Humidity | ≤ 85% RH (no condensation) |
Power Supply Requirements | AC 380 V ±10%,50 Hz, three-phase five-wire system |
Power Rating | Approximately 5–8 kW(depending on configuration) |
The system generates sinusoidal, trapezoidal, pulse-square, and user-defined waveforms at frequencies between 0.01 and 2 Hz. The pressure-rise and pressure-descending slopes are independently adjustable from 0.05 to 10 bar/s, allowing test engineers to replicate real-world loading conditions such as rapid thermal expansion events or slow pressure ramps.
A segmented programming mode lets users build composite cycles that combine multiple pressure levels, frequencies, and hold times in a single test sequence. This is useful for simulating duty cycles that vary by operating mode, such as automotive warm-up, cruise, and shutdown phases. The cycle counter supports up to 10 million cycles with ±1 count accuracy. When the preset count is reached, the system stops automatically and writes the test data to storage, eliminating the need for manual monitoring during multi-day or multi-week runs.
The test circuit uses deionized water or ethylene glycol solutions, at 50% or 70% concentration, as the pressure medium. A 60-liter SUS304 stainless steel reservoir supplies the circuit, and a 10 μm filter removes particulates that could damage valves or scratch test articles. Media temperature is controlled from room temperature to 70°C as standard, with an optional range extending to -20°C. The system operates in ambient temperatures of 5 to 40°C and relative humidity up to 85%, non-condensing. It requires a three-phase, five-wire AC 380 V ±10%, 50 Hz supply and draws approximately 5 to 8 kW depending on the configured options.
This test stand is used by component manufacturers and research laboratories to validate the fatigue life of parts subjected to repeated pressure loading, including automotive cooling system components such as radiators, hoses, and water pumps, fuel cell stack components and coolant passages, hydraulic fittings and valves, pressure vessels, aerospace fluid system components, and industrial heat exchangers. By quantifying the number of pressure cycles a component withstands before failure, engineers can verify design margins, compare material suppliers, and support warranty claims with empirical data.
Each system is factory-tested with a calibrated pressure transducer before shipment. The control software logs pressure, temperature, and cycle count at user-defined intervals and exports data in CSV format. Installation, calibration, and operator training are available on site. The pressure sensor, proportional valves, and filter elements are field-replaceable, and spare parts kits can be ordered with the system.
The system supports up to 10 million cycles per test. Any preset value within this range can be entered, and the machine stops automatically when the count is reached.
Pressure is regulated electronically through the control software. The operator enters target pressure and waveform parameters digitally. There is no manual pressure knob on the standard configuration.
The system supports sinusoidal, trapezoidal, pulse-square, and custom waveforms. Users can also create segmented programs that combine multiple pressure levels and frequencies in one sequence.
The standard configuration uses deionized water or 50%/70% ethylene glycol aqueous solution. The 60-liter SUS304 reservoir and 10 μm filtration are compatible with both media types.
Yes. The overpressure threshold can be set between 1.05 and 1.5 times the rated maximum pressure. If the threshold is exceeded, the system initiates instantaneous pressure relief and shuts down automatically.
