SN8波紋管目前在生產(chǎn)工藝和使用技術(shù)上已經(jīng)十分成熟。由于其優(yōu)異的性能和相對經(jīng)濟的造價，在歐美等發(fā)達已經(jīng)得到了極大的推廣和應(yīng)用。在我國，HDPE雙壁波紋管的推廣和應(yīng)用正處在上升勢態(tài)階段，各項技術(shù)指標(biāo)均達到使用標(biāo)準(zhǔn)。雙壁波紋管內(nèi)壁顏色通常有藍色和黑色，部分品牌內(nèi)壁會使用黃色。

At present, SN8 bellows has been very mature in production technology and application technology. Because of its excellent performance and relatively economic cost, it has been greatly popularized and applied in developed countries such as Europe and America. In China, the promotion and application of HDPE Double wall bellows is in the rising stage, and all technical in meet the application standards. The inner wall color of double wall corrugated pipe usually has blue and black, and the inner wall of some brands will use yellow.

·結(jié)構(gòu)合理外型美觀

Reasonable structure and beautiful appearance

·耐溫性能-40℃-60℃

·Temperature resistance - 40 ℃ - 60 ℃

·阻力小，流量大

·阻燃力強·使用壽命長

·Strong flame retardant and long service life

·衛(wèi)生性能可靠

·Sanitary and reliable performance

·綜合造價低·耐酸堿抗腐蝕

·Low comprehensive cost, acid and alkali resistance and corrosion resistance

·強度高，抗震性能強

·High strength and strong seismic performance

·節(jié)能降耗

·Energy saving and consumption reduction

·安裝運輸方便

·Convenient installation and transportation

?       HDPE雙壁波紋管S2排污波紋管DN400mm梓哲供應(yīng)的安波紋管全使期為50年以上，這一點不僅已為國際標(biāo)準(zhǔn)和新國際所證明，而且已被先進證明。水泥管理論上使用壽命20年，但是其為硅酸鹽類，長期受到酸堿的腐蝕，壽命大大降低。全國各地均有水泥管材由于污水滲漏導(dǎo)致地面下沉，接口斷裂，幾年內(nèi)就不得不更換的實例。

HDPE Double wall corrugated pipe S2 blowdown corrugated pipe dn400mm safety corrugated pipe supplied by Zizhe has a service life of more than 50 years, which has not only been proved by international standards and new international, but also advanced. The service life of cement is 20 years in management theory, but it is silicate, which is corroded by acid and alkali for a long time, and the service life is greatly reduced. All over the country, there are instances where cement pipes have to be replaced within a few years due to ground subsidence and interface fracture caused by sewage leakage.

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        當(dāng)HDPE雙壁波紋管S2排污波紋管DN400mm梓哲供應(yīng)管道通過流量、坡降及埋深相同時，HDPE可以比水泥管小一兩個型號HDPE內(nèi)表面粗糙系數(shù)為0.009，水泥管材內(nèi)表面粗糙系數(shù)為0.014，按照世界公認(rèn)的謝才定律，進行同流量計算，HDPE管材可以比水泥管材小兩個型號，而實際應(yīng)用中，建議小一個型號即可。如設(shè)計為600口徑的水泥管材可以用500口徑的HDPE替換。

When the flow, gradient and buried depth of HDPE Double wall corrugated pipe S2 blowdown corrugated pipe dn400mm Zizhe supply pipe are the same, HDPE can be one or two models smaller than cement pipe, and the inner surface roughness coefficient of HDPE is 0.009 and that of cement pipe is 0.014. According to Xie Cai's law recognized in the world, HDPE pipe can be two models smaller than cement pipe, In practical application, it is recommended to be a smaller model. For example, the cement pipe designed as 600 caliber can be replaced with 500 caliber HDPE.

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