The chart shows the result of test series with a very agressive material. The real wear at the pipe inner wall proportional to the pumped quantity concrete C20/25 is described. The concrete is a mixture with natural broken parts.The service life factor is shown on the y-axis. The testing values were put in relation to the service life of one-layer pipes usual on the market. The measurements have shown, that a pipeline in quality ESSER TWIN 900 can have up to 10-times more service life compared to ST52 pipes.These test results can be put in relation with other abrasive materials. In many applications planable maintenance intervalls or a certain service life-time are required. Costs for repairs shall be reduced and downtimes shall be minimised. Especially the ESSER TWIN series are designed for long usage.
Comparision of Service Life Time
ESSER TWIN 700•Two-layer Pipe•Inner pipe hardened up to 63 HRC•Service life factor 5:1 (comp. ST52)
ESSER TWIN 900•Two-layer Pipe•Inner pipe hardened up to 67 HRC•Service life factor 10:1 (comp. ST52)•Patented Production Process
The Original 900 Quality can only be from ESSER!
There is no heat influence below the welding seam because of the patented welding process.