The main purpose
It is used for the measurement of the opening pressure of the redundant gas discharge valve of the isolated chemical oxygen self-rescuer that uses alkali metal superoxide as the oxygen generator for the purpose of escape in the event of a fire. Applicable to labor safety protection inspection centers, occupational safety inspection centers, fire safety inspection centers, respirator manufacturers, etc.
Instrument characteristics
1. The instrument uses clean compressed air as its air source.
2. The detector is equipped with a special sealing fixture for the exhaust valve, an air flow adjustment and steady flow device, a micro flowmeter, a high-precision micro differential pressure gauge, etc.
3. The flow has a stepless adjustable function.
Technical index
1. Flow meter range: 0.3-3L/min.
2. The measuring range of micro-pressure difference is 0-1000Pa, and the accuracy is 1Pa.
Applicable standards
XF 411-2003 chemical oxygen fire self-rescue breathing apparatus
MT 425-1995 Isolated chemical oxygen self-rescuer