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Spiral Steel Pipe Erw Pipe Coating Pipe Thermal Insulation Steel Pipe

Precast Directly Buried Elbow

Taxonomy:Insulation Pipe

Product number:016

Shelf time:2014-07-08

Times of browsing:

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Product introduction

Product Name: Precast directly buried elbow






Standard: CJ/T155-2001






Specifications: 219.1 x 8.7 x 12000mm






Performance index of external protection pipe:






Density: not less than 940 kg/m3. Carbon black: 2.5% + 0.5%.






The difference of melt flow rate: less than 0.5g/10min






Tensile yield strength: greater than or equal to 19 MPa






Elongation at break: greater than or equal to 350%






Longitudinal retraction rate: less than 3%






Tensile force (80 C, minimum yield time 1500h): greater than 4MPa






Insulation layer technical indicators:






The obturator rate of foam is more than 88%.






Foam density: greater than or equal to 60 kg/m3.






Compressive stress: greater than or equal to 0.3MPa






Water absorption: less than 10%






Insulation pipe technical indicators:






External diameter increase rate: less than 2%






Allowable deviation of centerline: less than 10mm






Angle deviation: less than 2 degrees.






Shear strength: 23 + 2 centigrade, greater than 0.12 MPa






140 + 2 centigrade, greater than 0.08MPa






Chopping impact: there is no visible crack in the outer guard tube.


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JingLan(Tianjin) Technology Co., Ltd.