SEAMAN SCBA Spare Parts Demand Valve Air Supply Valve Breathing Valve

supply device, an additional gas supply, and pressure relief and other agencies. For the valves are equipped with automatic opening and breathing control switch. Peripherals for the automatic positive pressure gas supply valve button, extra gas, and pressure relief button, and fast interface, double-button. Wear a mask when the wearer was followed by rapid socket connection with the supply valve at this time, automatic positive pressure gas supply button has been pressed fully cover interface for the valve is automatically activated, gas masks and went for the nose and mouth mask wear to use. When the wearer would like to stop using, they can also hold down the fast-interface pairs of buttons, pulled out at the same time for the valve will automatically shut down for the valve. Only when the same time, press the button for the two valves will disconnect with the mask.

Additional gas supply and pressure relief button for non-switching by inhalation directly to the face mask in a constant supply of reserve gas supply security agencies, additional supply and pressure relief button is pressed, the system of sustainable gas supply or pressure relief. On the contrary that the bypass valve closed. Normal working hours do not need to press the button for additional gas supply and pressure relief.