Precautions for replacement of fire extinguisher repair parts

After the fire extinguisher parts are checked, replace the seals and damaged parts of the fire extinguisher, but the barrel and head body of the fire extinguisher cannot be replaced. All parts that need to be replaced should be products of the same model and specifications provided and recommended by the original manufacturer. And should replace and repair spare parts according to the following requirements:

(1) The cylinder body that has passed the water pressure test has a complete nameplate and some paint peeling off. Carry out touch-up paint. After touch-up paint, ensure that the paint film is smooth, flat, consistent in color, free of bubbles, flow marks, wrinkles, etc., and the paint must not cover the nameplate.

(2) Replace the deformed, discolored, aged or broken rubber and plastic parts; replace the sealing parts such as seals and gaskets to ensure compliance with the sealing requirements.

3) Replace the pressure indicator that has the defects of outer surface deformation, damage, etc., the pressure value display is abnormal, and the display value error does not meet the requirements. And make sure that the replaced pressure indicator is consistent with the original pressure indicator type, working pressure at 20°C, and three-color area indication range.

(4) Replace nozzles and spray hoses with defects such as deformation, cracking, and damage. And to ensure that the dust cover can fall off or shatter by itself when the fire extinguishing agent is sprayed.

(5) Replace the metal parts of the fire extinguisher with serious defects, deformation, corrosion, etc., and replace the thimble of the gas cylinder fire extinguisher with obvious defects.

(6) Replace the fire extinguisher siphon pipe and gas cylinder type fire extinguisher outlet pipe with shortcomings such as bending, blockage, damage and cracks.

(7) Replace the gas cylinders with unqualified water pressure test marks and long-term marks that do not meet the requirements, and discard the original gas cylinders. The overpressure protection devices of carbon dioxide fire extinguishers and gas cylinders that do not meet the requirements should be replaced.

(8) Replace the filter of the damaged water-based and foam-type fire extinguisher.

(9) Replace the fixing unit of the wheel and frame assembly of the damaged cart-type fire extinguisher, and the fixing device of the spray hose.

(10) Replace the special accessories specified by the vehicle fire extinguisher manufacturer.