Product Details

SCBA air breathing apparatus demand valve for sale

Principle of The demand valve:

There is big diaphragm valve inside as the self-balancing system, automatically tracking users’ breathing actions, provide the on-demand supply and ensure that pressure inside the mask higher than external environment.

The square manual turnoff button in front of demand valve can turn off the demand valve against the outputting air flow to stop air supply. And it will automatically starts by the suction at inhalation.

At the bottom is the manual force air supply button, it can automatically supply air when press this button if manual shut-off button fails, secondly, once users do not feel the air supply sufficient and touch this, air flow output will be increased automatically. In addition, it allows the out flux of some not-used-up air pressure in medium pressure hose thus to easily check and disassemble the quick connector.

Features of The Demand Valve:

· Demand valve can be inserted mask in 360 angles promptly.

· Small size, provide large lower vision for the full mask.

· Offer airflow depending on user’s requirement, airflow exceeds 510L/min, user can get comfortable breathing even if they are in heavy activity.

· Open pressure: -698pa

· Static state pressure: 231pa

· Inhalation resistance: 145pa – 210pa

· Adopt the technic of air-save.

Detail pictures:

full face mask respirator breathing apparatus mask