Temperature and Pressure Reduction

When a polyethylene pipeline system operates continuously at temperatures above 20℃, its maximum working temperature is reduced.

Pressure needs to be reduced accordingly. For a specific material, if the analysis in GB/T 18252 determines that a smaller reduction factor is feasible, then a higher reduction factor can be used.r-tw-pan-y: ; --univer-tw-pinch-zoom: ; --univer-tw-scroll-snap-strictness: proximity; --univer-tw-gradient-from-position: ; --univer-tw-gradient-via-position: ; --univer-tw-gradient-to-position: ; --univer-tw-ordinal: ; --univer-tw-slashed-zero: ; --univer-tw-numeric-figure: ; --univer-tw-numeric-spacing: ; --univer-tw-numeric-fraction: ; --univer-tw-ring-inset: ; --univer-tw-ring-offset-width: 0px; --univer-tw-ring-offset-color: #fff; --univer-tw-ring-color: rgba(147,197,253,.5); --univer-tw-ring-offset-shadow: 0 0 transparent; --univer-tw-ring-shadow: 0 0 transparent; --univer-tw-shadow: 0 0 transparent; --univer-tw-shadow-colored: 0 0 transparent; --univer-tw-blur: ; --univer-tw-brightness: ; --univer-tw-contrast: ; --univer-tw-grayscale: ; --univer-tw-hue-rotate: ; --univer-tw-invert: ; --univer-tw-saturate: ; --univer-tw-sepia: ; --univer-tw-drop-shadow: ; --univer-tw-backdrop-blur: ; --univer-tw-backdrop-brightness: ; --univer-tw-backdrop-contrast: ; --univer-tw-backdrop-grayscale: ; --univer-tw-backdrop-hue-rotate: ; --univer-tw-backdrop-invert: ; --univer-tw-backdrop-opacity: ; --univer-tw-backdrop-saturate: ; --univer-tw-backdrop-sepia: ; --univer-tw-contain-size: ; --univer-tw-contain-layout: ; --univer-tw-contain-paint: ; --univer-tw-contain-style: ; scrollbar-color: auto; scrollbar-width: none; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Semibold; list-style: none; margin: 14px 0px 24px; color: rgb(13, 13, 13); font-size: 24px; linePipe Color and Marking

The standard color for municipal drinking water pipes is blue or black. If black pipes are used, they must have co-extruded blue stripes, with at least three stripes running longitudinally along the pipe. This color and marking standard helps to quickly identify the purpose of pipes during construction and maintenance, ensuring the safety and standardization of drinking water systems.

Manufacturing Polyethylene Grades of PE Pipes

When manufacturing PE pipesPolyethylene materials typically used include three grades: PE 63, PE 80, and PE 100. The higher the number after the grade, the stronger the pressure resistance of the polyethylene. PE 80 and PE 100, due to their higher pressure resistance, are suitable for gas pipelines, providing more reliable gas delivery. PE 63 is generally used for water supply pipes, and its performance fully meets the requirements of water supply systems.w-translate-x: 0; --univer-tw-translate-y: 0; --univer-tw-rotate: 0; --univer-tw-skew-x: 0; --univer-tw-skew-y: 0; --univer-tw-scale-x: 1; --univer-tw-scale-y: 1; --univer-tw-pan-x: ; --univer-tw-pan-y: ; --univer-tw-pinch-zoom: ; --univer-tw-scroll-snap-strictness: proximity; --univer-tw-gradient-from-position: ; --univer-tw-gradient-via-position: ; --univer-tw-gradient-to-position: ; --univer-tw-ordinal: ; --univer-tw-slashed-zero: ; --univer-tw-numeric-figure: ; --univer-tw-numeric-spacing: ; --univer-tw-numeric-fraction: ; --univer-tw-ring-inset: ; --univer-tw-ring-offset-width: 0px; --univer-tw-ring-offset-color: #fff; --univer-tw-ring-color: rgba(147,197,253,.5); --univer-tw-ring-offset-shadow: 0 0 transparent; --univer-tw-ring-shadow: 0 0 transparent; --univer-tw-shadow: 0 0 transparent; --univer-tw-shadow-colored: 0 0 transparent; --univer-tw-blur: ; --univer-tw-brightness: ; --univer-tw-contrast: ; --univer-tw-grayscale: ; --univer-tw-hue-rotate: ; --univer-tw-saturate: ; --univer-tw-sepia: ; --univer-tw-drop-shadow: ; --univer-tw-backdrop-blur: ; --univer-tw-backdrop-brightness: ; --univer-tw-backdrop-contrast: ; --univer-tw-backdrop-grayscale: ; --univer-tw-backdrop-hue-rotate: ; --univer-tw-backdrop-invert: ; --univer-tw-backdrop-opacity: ; --univer-tw-backdrop-saturate: ; --univer-tw-backdrop-sepia: ; --univer-tw-contain-size: ; --univer-tw-contain-layout: ; --univer-tw-contain-paint: ; --univer-tw-contain-style: ; scrollbar-color: auto; scrOther Water Pipe Requirements

Except for municipal drinking water pipes, water pipes for other purposes may also be blue or black. For pipes laid under direct sunlight, such as above-ground pipes, black pipes must be used. This is because black...'The pipe material can effectively absorb ultraviolet rays, reducing UV damage to the pipe and extending its service life.-gradient-from-position: ; --univer-tw-gradient-via-position: ; --univer-tw-gradient-to-position: ; --univer-tw-ordinal: ; --univer-tw-slashed-zero: ; --univer-tw-numeric-figure: ; --univer-tw-numeric-spacing: ; --univer-tw-numeric-fraction: ; --univer-tw-ring-inset: ; --univer-tw-ring-offset-width: 0px; --univer-tw-ring-offset-color: #fff; --univer-tw-ring-color: rgba(147,197,253,.5); --univer-tw-ring-offset-shadow: 0 0 transparent; --univer-tw-ring-shadow: 0 0 transparent; --univer-tw-shadow: 0 0 transparent; --univer-tw-shadow-colored: 0 0 transparent; --univer-tw-blur: ; --univer-tw-brightness: ; --univer-tw-contrast: ; --univer-tw-grayscale: ; --univer-tw-hue-rotate: ; --univer-tw-invert: ; --univer-tw-saturate: ; --univer-tw-sepia: ; --univer-tw-drop-shadow: ; --univer-tw-backdrop-blur: ; --univer-tw-backdrop-brightness: ; --univer-tw-backdrop-contrast: ; --univer-tw-backdrop-grayscale: ; --univer-tw-backdrop-hue-rotate: ; --univer-tw-backdrop-invert: ; --univer-tw-backdrop-opacity: ; --univer-tw-backdrop-saturate: ; --univer-tw-backdrop-sepia: ; --univer-tw-contain-size: ; --univer-tw-contain-layout: ; --univer-tw-contain-paint: ; --univer-tw-contain-style: ; scrollbar-color: auto; scrollbar-width: none; padding: 0px; -webkit-font-smoothing: antialiased; font-family: PingFangSC-Semibold; list-style: none; margin: 14px 0px 24px; color: rgb(13, 13, 13); font-size: 24px; line-height: 32px; border: none; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);">Pipe materialAppearance and Dimensional Requirements" The inner and outer surfaces of the pipes should be clean and smooth, free from defects such as bubbles, obvious scratches, dents, impurities, and uneven coloring. These appearance requirements ensure the quality and performance of the pipes, preventing leaks and other problems caused by surface defects during use. Pipe ends should be cut flat and perpendicular to the pipe axis to ensure sealing and stability during pipe connections. Straight pipe lengths are generally 6m, 9m, and 12m, but other lengths can be agreed upon by both the supplier and the buyer to meet specific needs.Usage requirements for different engineering scenarios.