Color coding of pipelines and piping materials are standard industry practices. Color marking will make identification easier for raw material and fluid that is being transported by the pipe. There are various national and international Pipe Color Code Standards available.
Why is it so important to call before you dig? Gas, water and electric pipes are buried just out of sight. Digging without checking to see what is underground can be a costly and even deadly mistake. Fortunately, safeguards are in place to prevent accidents, like surface markings and color-coded underground pipes
Gray PVC pipe is mainly used in drainage systems. It is characterized by lower pressure resistance and relatively low price, and is usually used in sewage pipes. Compared with white PVC pipe, gray PVC pipe may contain a small amount of carbon black inside to increase its pressure resistance and corrosion resistance.
White PVC pipe is mainly used in water supply systems, including drinking water supply. White PVC pipe has a higher price, high pressure resistance, and the material meets the standards for drinking water use. In addition, white PVC pipe is not suitable for open-air environments because sunlight exposure may cause algae to grow on the inner wall of the pipe.
Color pvc pipe is mainly used for wire conduits, such as red and blue, to distinguish between strong and weak current lines. Red wire conduits are used for strong current lines, while blue wire conduits are used for weak current lines. This color coding helps to quickly identify different types of wires during installation and maintenance to avoid confusion.
Yellow and green PVC wire conduits, in addition to red and blue, may also use yellow and green wire conduits. Yellow or green is usually used as grounding wire conduits to prevent electric shock hazards. This color of pipe is used for additional grounding wire in three-phase four-wire power supply.
The color of the pipe is mainly for the convenience of identification and distinction of different uses, specifications or brands, rather than to indicate the difference in performance or function of the pipe. In practical applications, choosing the right pipe color can help construction workers quickly and accurately identify and install the pipe, ensuring the correct implementation of the project.
