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Baotou Beiben Heavy Duty Truck Parts Manufacturer recommends that the door be ventilated under the following conditions:

1. Replace the valve of the new tire.

2. When the valve is found to be aged and cracked, it is recommended to change the valve.

3. The rubber at the valve port may be aged after long-term use, resulting in air leakage, and driving without air will lead to tire wear. The valve port should be inspected regularly. In addition, the bonnet is used together with the valve opening to prevent water, gas and dust from entering the valve opening.

Requirements for valve port inspection.

1. The surface of tire valve port should be smooth, free of burrs, cracks, oil stains and rust; There must be no blank surface on the vulcanized rubber pad.

2. The difference between the long and short axes of the ellipse at the mouth bend is not more than 1.8mm.

3. The gasket surface should be galvanized or other coatings.

4. Nuts and protective caps (type B) should be degreased and derusted.

5. The valve core of the standard tire of Baotou Beiben Heavy Duty Truck Parts is installed at the tire valve door, the specified air pressure is introduced, and it is put into the water, and no bubbles escape within 2 minutes.

6. The valve port of wheel towing shall meet the requirements of this standard. Drawings and documents approved according to prescribed procedures.

7. The tire valve of Baotou Beiben Heavy Duty Truck parts shall be inspected by the manufacturer before delivery, and each batch of products shall meet the requirements of this standard, with product quality certificate attached.

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