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Technical requirements for PE gas pipe fittings

General requirements

管材应符合《燃气用埋地聚乙烯( PE)管道系统第1部分:管材》GB15558.1标准,管件应符合《燃气用埋地聚乙烯(PE)管道系统第2部分:管件》GB15558.2标准,钢塑转换应符合《燃气用聚乙烯管道系统的机械管件第1部分:公称外径不大于63mm的管材用钢塑转换管件》GB 26255.1或《燃气用聚乙烯管道系统的机械管件第2部分:公称外径大于63mm的管材用钢塑转换管件》GB 26255.2的要求。 PE gas pipes shall comply with the GB15558.1 Standard for Buried Polyethylene (PE) Piping Systems for Gas, and pipe fittings shall comply with GB15558, Buried Polyethylene (PE) Piping Systems for Gas, Part 2: Pipe Fittings. .2 Standard, steel-plastic conversion shall comply with "Mechanical Fittings for Polyethylene Gas Pipeline Systems for Gas Part 1: Steel-Plastic Conversion Fittings for Pipes with Nominal Outside Diameters Not More Than 63mm" GB 26255.1 or "Mechanical Pipe Fittings for Polyethylene Gas Pipeline Systems for Gas Part 2: Requirements for steel-plastic conversion fittings for pipes with a nominal outside diameter greater than 63mm "GB 26255.2

Technical parameter requirements

PE燃气 材管件原材料要求: PE燃气 管材、管件均采用 PE100橙色原材料,且原材料必须为道达尔石化HDPE XS10 Orange YCF或PE100-RC XSC50 Orange、北欧化工HE3492-LS (Orange)或英利士TUB125 N2025 (Orange),不允许使用回收的PE物料。 ( 1) Raw material requirements for PE gas pipes and fittings : PE gas pipes and fittings use PE100 orange raw materials, and the raw materials must be Total Petrochemical HDPE XS10 Orange YCF or PE100-RC XSC50 Orange, Nordic Chemical HE3492-LS (Orange) or Yingli TUB125 N2025 (Orange), do not allow the use of recycled PE materials.

PE燃气 管材管材颜色要求: PE100 SDR11、SDR17.6系列产品的中、低压燃气用管均为橙色,且dn≤160规格低压燃气用管应在管材上挤出至少三条黑色条,色条应沿管材圆周方向均匀分布。 ( 2) PE gas pipe color requirements: PE100 SDR11, SDR17.6 series of medium and low pressure gas pipes are orange, and dn≤160 low pressure gas pipes should be extruded at least three black bars on the pipe, color The strips should be evenly distributed along the circumference of the pipe.

3 PE燃气 管材热熔管件均采用注塑管件 SDR11、SDR17.6系列;电熔管件均采用SDR11系列。 ( 3 ) PE gas pipe hot-melt fittings all use injection pipe fittings SDR11, SDR17.6 series; electric fusion fittings all use SDR11 series.

4 dn315以上的 PE燃气 材注塑管件两端的直管段部分的长度必须保证不小于 40cm,如无法满足该长度,供方必须在原 PE燃气 管材的直管段部分的长度基础上加焊一段不小于 30cm的同径管材,加焊的焊口必须符合《燃气用埋地聚乙烯(PE)管道系统第2部分:管件》GB15558.2-2005标准要求 ( 4 ) The length of the straight pipe section of the PE gas pipe injection pipe fittings above dn315 must be not less than 40cm. If this length cannot be met, the supplier must add a weld to the length of the straight pipe section of the original PE gas pipe. For welded pipes smaller than 30cm in diameter, the welded joints must meet the requirements of GB15558.2-2005 Standard for Buried Polyethylene (PE) Piping Systems for Gas Part 2: Pipe Fittings

5 )钢塑转换钢管段材质为 20#或L245,其外径及壁厚应符合《输送流体用无缝钢管》GB/T 8163-2008标准或《石油天然气工业管线输送系统用钢管》GB/T 9711标准要求。 ( 5 ) The material of the steel-plastic conversion steel pipe section is 20 # or L245, and its outer diameter and wall thickness should conform to the GB / T 8163-2008 standard for seamless steel pipes for fluid transportation or the steel pipes for pipeline systems of the oil and gas industry. / T 9711 standard requirements.

6 )钢塑转换接头的钢管段和尼龙防腐法兰片的防腐应符合《钢质管道单层熔结环氧粉末外涂层技术规范》 SY/T 0315标准加强级要求。 ( 6 ) The corrosion protection of steel pipe sections and nylon anti-corrosion flanges of steel-plastic conversion joints shall meet the requirements of SY / T 0315 standard reinforced grade of "Technical Specifications for Single-Layer Fusing Epoxy Powder Coating of Steel Pipes" . The dimensions of the flange outer diameter, flange thickness, bolt hole diameter, number of bolt holes, center circle diameter of bolt holes, etc. of nylon anti-corrosion flanges shall meet the requirements of PN16 level of GB / T 9119 standard for plate flat welded steel pipe flanges. .

Case details

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