LFY-716C Reverse Gas Tightness Testing Device for Exhaust Valve

Main purpose

This is a test for the reverse airtightness of the excess gas discharge valve of a self-rescue respirator that is used once for escape purposes in case of fire, and which uses alkali metal peroxides as the oxygen source. It is applicable to labor safety protection inspection centers, occupational safety inspection centers, fire safety testing centers, and respirator manufacturing enterprises, etc. 
Instrument Characteristics 
1. The instrument uses clean compressed air as its air source.
2. The detector is equipped with special sealing fixtures for exhaust valves, a sealed test box, and a high-precision micro-pressure differential gauge, etc.
3. The test time can be preset and automatically timed. 
Technical indicators 
1. Volume of the sealed inspection box: 2.5L.
2. Measuring range of micro-pressure differential: 0 - 1000 pa, with an accuracy of 1 pa. 
Applicable Standards 
XF 411-2003 Chemical Oxygen Self-Supporting Firefighter Respirator 
MT 425 - 1995 Isolated Chemical Oxygen Self-Rescue Respirator