For comprehensive performance testing and calibration of full-face respirators and breathing protection equipment.
MHX-3-C Breather Mask Calibration Machine is a computer-controlled automatic comprehensive respirator testing system.
It is designed to evaluate the overall performance of air respirators and respiratory protection devices, ensuring compliance with relevant standards and reliable operational safety.
This equipment is widely used by respirator inspection & maintenance stations, safety testing laboratories, regulatory inspection agencies, and respirator manufacturers.
The MHX-3-C comprehensive respirator detector integrates testing accuracy, automation, and operational convenience into a single system.
By simulating real breathing conditions through an artificial lung and controlled airflow, the system accurately measures respirator performance under different working quotas.
The detector supports full-face respirator testing, providing stable pressure control, data acquisition, and professional test reports, making it suitable for both routine inspections and factory quality control.
Test Head Mold
Note: Half-mask respirators cannot be tested directly due to incomplete coverage of the sampling port.
Artificial Lung
Computer & Control Software
Printer (Optional)
High-Pressure Manifold
The working quota represents the air volume inhaled or exhaled by the artificial lung per minute.
MHX-3-C offers three selectable working quotas:
| Standard Type | Working Rate |
| National Standard | 40 L/min |
| International Standard | 50 L/min |
| International Maximum | 100 L/min |
All quotas can be selected via the operating software interface.
| Item | Specification |
| Pressure Test Accuracy | ±1% |
| Breathing Volume Accuracy | ±5% |
| Respiratory Frequency Accuracy | ±5% |
| Equipment Weight | 30 kg |
| Ambient Temperature | 5℃ ~ 40℃ |
| Relative Humidity | ＜85% |
| Power Supply | 200–240V, 50Hz, Single Phase |
| Power Consumption | ＜2A |
For hydrostatic pressure testing and residual deformation inspection of mobile gas tanks in accordance with national safety standards.
For opening pressure, vacuum, water pressure and ventilation performance testing of breather valves, compliant with GB, API and SY/T standards.
For amplifying low-pressure gas into stable high-pressure output in high-pressure and large-flow gas applications.
For integrated inspection and performance verification of oil tank breathing valves, hydraulic relief valves, and flame arresters in accordance with CNPC standards.
For static pressure resistance and burst testing of hoses, pipes, joints, pressure vessels, and other pressure components in compliance with international and domestic test standards.
For pressure pulse fatigue testing, stability verification, and durability evaluation of hoses and pressure components under controlled pressure waveforms.
For on-site grinding and maintenance of safety valve seats, improving repair efficiency while reducing labor intensity and maintenance costs.
For high-precision grinding and on-site maintenance of safety valve seats and valve discs.
For comprehensive performance testing and evaluation of air breathing apparatus and respiratory protection devices.
For air tightness and air opening performance inspection of submarine valves used in fuel tank trucks and tankers.
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