How to maintain positive pressure air respirator

I, mask maintenance mask by the face mirror, mesh gel fast dress strap, double microphone and air supply valve connection port composition. 1, the maintenance of the face mirror, pay attention to the friction and impact to the rough, hard substances, to prevent the face mirror abrasion and affect the transmittance and clarity or even damage. 2, dress strap (microphone, air supply valve connection port) of the maintenance. The material of the dress belt is rubber, usually wear it according to the requirement of loosening and tightening, not too much force, and prevent the damage of some corrosive substances, and repair the damage in time. 3, the maintenance of the microphone and the connection port of the air supply valve. Can not let some substances into the internal, blocking the inside of the hole and impact so that the plastic material rupture damage, resulting in unclear calls or connection with the air supply valve is not solid. Comprehensive cover as far as possible after each use with disinfectant to avoid cross-infection of various diseases, to be dried and stored in a special cloth cover. Second, the back frame of the maintenance and maintenance of the back frame by the back support, shoulder straps, belt, gas cylinder fixed belt and pressure reducer, medium pressure soft conduit, quick plug, pressure gauge, alarm whistle and supply valve and other various components. 1, the back support, shoulder straps, gas cylinder fixed belt maintenance. Hold and put them gently during use to prevent damage caused by collision and friction with sharp substances. At the end of each use, if it is soaked with water, it should be taken to a dry and ventilated place to be dried, avoiding exposure to the sun. Save the tightening belt should be placed in the maximum position, to ensure that the air respirator can be better tied to the body of the combatant. 2, the maintenance of the air supply valve and medium-pressure flexible conduit. Its main role is used to provide air to the user, the role of the air supply valve is to switch the air supply valve, and the role of the emergency relief valve is used to assist the air supply, in addition to the mirror fog and discharge of residual gas. In use, according to the instructions in the operating requirements of the correct use, do not connect the mouth of the "O" ring damage or loss, not in the sun and corrosive substances in contact with the sun, in order to avoid damage. 3, the pressure reducing valve, alarm whistle, quick plug and the maintenance of the pressure gauge. Pressure-reducing valve, alarm whistle, quick plug, before and after use must be carefully examined to see whether the device is intact, but also can not play its role, especially after being soaked in water, to dry in a dry ventilated place to dry. For the quick plug also have to add a certain amount of lubricant, to ensure the integrity of good use. Maintenance of the pressure gauge: in the check cylinder air pressure is also a check of it, after the inspection, to release the memory residual gas, to ensure that the pressure gauge and medium pressure hose will not be damaged in the case of constant pressure; at the same time can not be used to measure the over-value of the pressure, to avoid overloading. Third, the compressed air bottle and cylinder valve maintenance 1, the cylinder valve is used to control the cylinder switch components, it should be the right switch, usually need to add a certain amount of lubricant. 2, compressed air cylinders are mainly used to store compressed air, there are two kinds of steel and carbon fiber. In the flush should pay attention to: flush into the air can not exceed the rated safety air pressure, air humidity can not be too large, will lead to oxidation of the inner wall of the cylinder; in use can not be fierce collision and friction with sharp objects, light will lead to damage to the cylinder, heavy will lead to an explosion; necessary to the cylinder (especially carbon fiber cylinder) to make a protective sleeve, to prevent friction on the damage. Steel cylinders should also be shabu-shabu a layer of antirust paint, to avoid oxidation of the outside of the cylinder; full of gas cylinders can not be stored in the sun and high temperature to avoid damage or cause an explosion. Shanghai Changwei industry specializes in providing positive pressure air breathing apparatus