Tag Archives: double wall

GOST 11249-80 Steel Rolled-Up Soldered Double-Layer Brazed Tubes

This standard applies to steel convoluted double-layer brazed pipes intended for pipelines of hydraulic systems of combines, tractors, automobiles, household refrigerators, etc. 1. Assortment 1.1. The shape, dimensions and mass of 1 m of pipes must correspond to those indicated in Fig. 1 and in Table 1.   1.2. The length of the pipe is made: dimensional – […]

Standards

IS8119 Class I Copper Brazed Steel Tubing 12.7x1mm Shipped to India

Tubes of 12.7x1mm were shipped from our local factory, cut in 5.8 meter length, packed in steel case, by heavy trucks to Shanghai. The tubes were made to Indian standard of copper brazed steel tubing IS8119 Class I, double wall structure. They shall be used further to manufacture tube parts for railway hydraulic systems. Tubes […]

Cases

How to Tell Double Wall Bundy Tubes from Single Wall Bundy Tubes

Many buyers are confused by names of the double wall and single wall Bundy tubes. Once a while one of our client who needed double wall Bundy tube, but the tubes he purchased from somewhere else were actually single wall tubes coated with copper both inside and outside. Buyers of Bundy tubes should firstly clearly […]

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