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0 30 psi oil pressure gauge
The English name of psi is pounds per square inch. Pounds, square feet, and an inch. European and American countries are accustomed to taking psi as the unit
1. The utility model relates to an instrument used for measuring air pressure, which can be classified into several categories, among which the tire pressure gauge is a kind of air pressure tire pressure gauge;
2. It is composed of a meter head, a meter body, a ruler, a ruler, a main spring, etc. There is only one air pressure measuring port on the meter head, which is simple in structure, small in range, high in accuracy, and easy to use;
3. It is suitable for small cars such as mini cars, motorcycles, tire pressure measurement, etc.
Air pressure is the destiny of tires. Too high or too low will shorten the service life of the tire. If the air pressure is too low, the deformation of the tire carcass will increase, and the sidewall is prone to cracks. At the same time, it will produce buckling movement, which will lead to excessive heating, promote rubber aging, tire cord fatigue and cord breakage, and also increase the contact area of the tire, accelerating the wear of the tire shoulder. If the air pressure is too high, the tire cord will be subject to excessive tensile deformation, and the elasticity of the tire carcass will be reduced, which will increase the load of the car during driving. If impacted, internal cracking and explosion will occur. At the same time, if the air pressure is too high, the tire crown will be worn and the rolling resistance will be reduced.
How much of the tire pressure psi is normal? The normal tire pressure of automobile tires is 2.3-2.5 bar. The tire pressure values of different types of automobiles are different. The standard tire pressure can be found in the vehicle user's manual, the label next to the cab door (near the B pillar), the inside of the fuel tank cap, and other locations. Body weight, chassis height and other factors will also affect the tire pressure of automobile tires.
In addition, seasonal factors will also affect the tire pressure of automobile tires. Because of the principle of thermal expansion and cold contraction, the tire pressure values of automobile tires in winter and summer are different, and the tire pressure in winter should be appropriately increased by about 0.2 bar. The temperature is relatively high in summer. If the car is parked in the open air, the air pressure can generally be 0. 5% lower than the standard about 1 bar to avoid tire burst under high temperature. If the tire pressure of an automobile tire is too high, the friction and adhesion of the tire will be reduced, which will affect the braking effect of the automobile to a certain extent. In addition, low tire pressure will accelerate the local wear of the pattern in the center of the tire tread, and shorten the service cycle of the tire.
If the tire pressure is too high, the friction coefficient between the tire and the ground will increase during driving, the fuel consumption of the car will rise, causing the steering wheel to become heavy, and the direction is easy to deviate during driving.
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