Scope of Application

【Operating Instructions】

The exhalation valve is installed on a suitable fixture. The interior of the fixture is then evacuated to a negative pressure state. The airtightness of the exhalation valve is evaluated by monitoring the time it takes for the entire fixture device to return to atmospheric pressure.

YS-704Y Exhalation Valve Airtightness Tester

Scope of Application

The exhalation valve is installed on a suitable fixture. The interior of the fixture is then evacuated to a negative pressure state. The airtightness of the exhalation valve is evaluated by monitoring the time it takes for the entire fixture device to return to atmospheric pressure.

Technical Specifications

1. Constant Volume Chamber Volume: 150 ± 10 mL.

2. Micro-pressure Gauge Range: 0 ～ 2000 Pa; Accuracy: 1 Pa.

3. Flowmeter Range: 0 ～ 1000 mL/min.

4. Flowmeter Accuracy: 3%.

5. Display: Electronic digital display for flow rate.

6. Timer Accuracy: 0.1 s.

7. Vacuum Pump Rate: 2 L/min.

8. Monitoring: Real-time display of test pressure.

9. Control: Touch screen control.