Mask breathing valve air tightness tester

Respirator resistance airtightness tester is used to measure the inhalation and exhalation resistance of a mask under specified conditions. It is suitable for the respirator manufacturer, the national labor protection equipment inspection institution to carry on the related inspection and inspection to the mask product, the respirator breathing resistance tester, the breathing valve air tightness inspection instrument, the breathing resistance machine is used to measure the respirator and the respirator protective equipment in the stipulated condition the inspiratory resistance and the breathing resistance. Applicable to the national labor protection products inspection institutions, mask manufacturers to ordinary masks, dust masks, medical masks, anti-haze masks related testing and inspection

Conform to the standard

Gb2626-2006 respiratory protective equipment -- self-priming filter type particulate matter respirator

Self-priming filter type particulate matter respirator

GB/T 32610-2016 technical specification for daily protective masks

1. The instrument consists of an air source that can regulate the flow rate, a standard human head mold, a double casing system for inhalation and exhalation, and a respiratory resistance measurement system.

2. High sensitivity of flow sensor, with minimal starting flow.

3. The flow sensor chip adopts thermal mass flowmeter, which does not need temperature and pressure compensation, ensuring the high-precision measurement of the sensor. The measuring range of the flowmeter is 0L/min ~ 100L/min, and the accuracy is ±2%.

4. Multiple sensors are integrated on a single flow sensor chip, greatly increasing the range ratio of the sensor.

5. The flow sensor has high zero point stability, full range high stability, full range high accuracy and excellent repeatability, low power consumption, low voltage loss and fast response speed.

6. The data recorder adopts a 128×64 resolution graphics lattice liquid crystal, with an all-chinese interface and easy operation.

7. The data recorder has 4M memory for measuring value recording.

8, micro pressure gauge sensor adopts two-wire system, high precision, good stability; The explosion-proof design is safe and reliable.

9. Measuring range of microgauge sensor and zero point external continuously adjustable, damping adjustable, no mechanical moving part, less maintenance workload. The microgauge ranges from -1000pa to 1000Pa with an accuracy of 1Pa.

10. The whole instrument adopts special gas circuit conversion element, which ensures the convenient and fast conversion of the two casing circuit system of exhalation and inspiration.

11. The pumping capacity of the air pump shall not be lower than 100L/min

12. The ventilation volume is constant at (85±1) L/min

13. Power supply: AC220V, 50Hz

14. Apply the new national standard of zui, and be compatible with the standards of labor protection masks and daily protective masks