The Breathing Valve Airtightness Tester is an instrument for testing the airtightness of the breathing valve of self-priming filtered anti-particulate respirators.

The breather valve is sealed in an airtight manner on the breather valve test fixture and pumped with a vacuum pump to subject the breather valve to a certain pressure to detect the flow of air leaking from the breather valve.

The RF4311AB tester, can meet both GB 2626 and JIS T8151 test standards.

Scope of application.

Self-priming filtered anti-particulate respirators etc.;

Applicable standards.

GB 2626

JIS T8151

Specification parameters.

1、Pumping rate: 0-2 L/min;

2、Micro-pressometer range: -2000-0Pa, accuracy 1%, resolution 0.2Pa;

3、Flowmeter range: 0-100mL/min. with 1% accuracy and 0.1 mL/min resolution;

4、Buffer container: 5L;

5、Testing chamber inner space: 50±5cm3;

6、Exhalation valve test pressure difference adjustable;

7、Automatic test leak time (time to return from negative pressure to normal pressure);

8、Easy and fast operation.

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