PE燃气管/PE燃气管价格

产品介绍

PE燃气管以专用聚/烯为原料,经挤塑制成,用干燃气运输管材。PE燃气管相比干传统钢铁管材有着良好的经济齐性能代

替了传统的钢铁管材,具有抗冲击、抗开裂、耐老化、耐腐蚀等一系列优点,在燃气运输有着广泛应用,成为现代燃气运输的理想管材。因为燃气具有一定的潜在危险,所以对燃气管网的可靠性的要求很高。万方PE燃气管牢固不可泄露、高韧性、优良的挠性,良好的快速裂纹传递抗压能力等诸多产品特性可以完全满足燃气运输等要求。

产品执行标准

燃气用埋地聚乙烯(PE)管道系统第1部分:管材GB15558.1-2015

产品特点

特点关键词∶物理性能佳、卫生、抗冲击、柔韧性、连接安全、质量轻、输送流量、经济效益高

1、优异的物理性能∶MDPE性能介于高、底密度聚乙烯两者之间,即保持了高密度聚乙烯的刚性,又有较好的柔韧性,不吸水,优良的电绝缘性和常温下良好的耐酸、碱、盐、有机溶剂,耐寒性好,耐蠕变性能佳。且比HDPE更具有优良热熔连接性能的特点,PE燃气管有利于塑料管的安装。

2、良好的卫生性能∶PE燃气管加工时不添加重金属盐稳定剂,材质无毒性,无结垢层,不滋生细菌,很好地解决了城市饮用水的二次污染。

3、卓越的耐腐蚀性能∶除少数强氧化剂外,可耐多种化学介质的侵蚀;无电化学腐蚀。

4、柔韧性好,抗冲击性能优良。PE燃气管柔韧性好,当地基沉陷或地震发生时,重物直接压过管道,能随之产生一定程度的变形而不致断裂,避免燃气泄露,并可恢复。而钢管相反,易发生断裂,会导致燃气泄露,乃至燃气爆炸事件发生。重物直接压过管道,不会导致管道破裂。

5、可靠的连接性能∶PE燃气管热熔或电熔接口的强度高于管材本体,接缝不会由于土壤移动或活载荷的作用断开。

6、良好的施工性能∶管道质轻,焊接工艺简单,施工方便,工程综合造价低。

7、较大的输送流量∶管壁平滑,能提高介质流速,增大流量,与相同的金属管道相比,PE燃气管可输送更大的流量,节省动力消耗。

8、经济效益∶成本低,投资少,与金属管道相比,可减少工程综合投资1/3左右,可盘卷的小口径管材,可进一步降低工程造价。

产品用途

燃气用埋地聚乙烯(PE)管道适用于工作温度在-20~40℃,长期最大工作压力不大于0.7MPa的燃气输送用管道系统。

运输安装

1、P燃气管道埋设的最小管顶覆土厚度埋设在车行道下时,不宜小于0.8m;埋设在非车行道下时,不宜小于0.6m;埋设在水田下时,不宜小于0.8m;如果PE燃气管采取了防护措施,上述的要求可以降低些。

2、PE燃气管道的地基宜为无尖硬土石和无盐类的原土层,当原土层有尖硬土石和盐类时,应铺设细沙或细土。凡可能引起管道不均匀沉降地段,其地基应进行处理或采取其他防沉降措施。

3、PE燃气管道在输送含有冷凝液的燃气时,应埋设在土壤冰冻线以下,并应设置凝水缸。管道坡向凝水缸的坡度不宜小于0.003。

4、PE燃气管道与建筑物、构筑物、基础或相邻管道之间无法满足规定的安全距离要求时,应将管道设于管道沟或钢套管中,套管两端应用柔性密封材料封堵。管道沟或钢套管两端应伸出障碍物且与被跨越的障碍物间的距离不应小于0.5m。对有伸缩要求的管道,保护套管或地沟不得妨碍管道伸缩且不得损坏绝热层外部的保护壳。

5、地下PE燃气管道不宜与其他管道或电缆同沟敷设。当需要同沟敷设时,必须采取防护措施。

PE gas pipe

product description

The PE gas pipe is made of special poly/olefin as raw material and is extruded, and the pipe is transported by dry gas. Compared with dry traditional steel pipes, PE gas pipes have good economic performance and performance.

Instead of traditional steel pipes, it has a series of advantages such as impact resistance, crack resistance, aging resistance, and corrosion resistance. It has a wide range of applications in gas transportation and has become an ideal pipe for modern gas transportation. Because gas has a certain potential hazard, the reliability of the gas pipeline network is very high. Wanfang PE gas pipe is firm and non-leakable, high toughness, excellent flexibility, good fast crack transmission and compression resistance and many other product characteristics can fully meet the requirements of gas transportation.

Product performance standards

Buried Polyethylene (PE) Piping System for Gas Part 1: Pipes GB15558.1-2015

Features

Feature keywords: good physical properties, hygiene, impact resistance, flexibility, safe connection, light weight, conveying flow, high economic benefits

1. Excellent physical properties: MDPE performance is between high and bottom density polyethylene, that is, it maintains the rigidity of high-density polyethylene, but also has good flexibility, no water absorption, excellent electrical insulation and normal temperature. Good resistance to acids, alkalis, salts, organic solvents, cold resistance, and creep resistance. And it has better hot-melt connection performance than HDPE. PE gas pipe is conducive to the installation of plastic pipe.

2. Good hygiene performance: no heavy metal salt stabilizer is added during the processing of PE gas pipe, the material is non-toxic, no scaling layer, no bacteria breeding, and it solves the secondary pollution of urban drinking water.

3. Excellent corrosion resistance: Except for a few strong oxidants, it can withstand the erosion of a variety of chemical media; no electrochemical corrosion.

4. Good flexibility and excellent impact resistance. The PE gas pipe has good flexibility. When the foundation subsides or an earthquake occurs, the heavy object directly presses the pipe, which can cause a certain degree of deformation without breaking, avoiding gas leakage and recovering. On the contrary, steel pipes are prone to breakage, which can lead to gas leakage and even gas explosions. The heavy objects are directly pressed through the pipeline and will not cause the pipeline to rupture.

5. Reliable connection performance: The strength of the PE gas pipe hot melt or electric melt interface is higher than that of the pipe body, and the joint will not be broken due to soil movement or live load.

6. Good construction performance: the pipeline is light in weight, the welding process is simple, the construction is convenient, and the overall project cost is low.

7. Larger conveying flow: The pipe wall is smooth, which can increase the flow rate of the medium and increase the flow. Compared with the same metal pipe, the PE gas pipe can convey a larger flow and save power consumption.

8. Economic benefits: low cost and low investment. Compared with metal pipelines, it can reduce the overall investment of the project by about 1/3. Small diameter pipes that can be coiled can further reduce the project cost.

Product Usage

Buried polyethylene (PE) pipelines for fuel gas are suitable for pipeline systems for fuel gas transportation with a working temperature of -20~40°C and a long-term maximum working pressure not greater than 0.7MPa.

Transport and installation

1. When the P gas pipeline is buried under the roadway, it should not be less than 0.8m; when it is buried under the roadway, it should not be less than 0.6m; when it is buried under a paddy field, it should not be less than 0.8m; If protective measures are taken for the PE gas pipe, the above requirements can be reduced.

2. The foundation of the PE gas pipeline should be the original soil layer without sharp hard soil and no salt. When the original soil layer has sharp hard soil and salt, fine sand or fine soil should be laid. For sections that may cause uneven settlement of the pipeline, the foundation should be treated or other anti-settlement measures should be taken.

3. PE gas pipelines should be buried below the soil freezing line when transporting gas containing condensate, and should be equipped with condensate tanks. The slope of the pipe slope to the condensing tank should not be less than 0.003.

4. When the specified safety distance requirements cannot be met between PE gas pipelines and buildings, structures, foundations or adjacent pipelines, the pipelines should be installed in pipeline trenches or steel sleeves, and both ends of the sleeves should be sealed with flexible sealing materials. . The two ends of the pipe trench or steel casing should extend out of the obstacle and the distance between the obstacle and the crossed obstacle should not be less than 0.5m. For pipelines with expansion and contraction requirements, the protective sleeve or trench shall not hinder the expansion and contraction of the pipeline and shall not damage the protective shell outside the insulation layer.

5. Underground PE gas pipelines should not be laid in the same trench with other pipelines or cables. When laying in the same trench, protective measures must be taken.

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