LFY-716D Exhaust Valve Opening Pressure Measuring Device

Main purpose

This is a device used to measure the opening pressure of the excess gas discharge valve of a one-time-use isolated chemical oxygen self-rescuer with an alkaline metal superoxide as the oxygen source, which is for the purpose of evacuation in case of fire. 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, air flow regulation and constant flow devices, micro flow meters, high-precision micro pressure differential meters, etc.
3. The flow rate has a stepless adjustable function. 
Technical indicators 
1. Flow measurement range: 0.3 - 3 liters per minute.
2. Differential pressure measurement range at micro pressure: 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