ADVANCED WELD PROTECTION TECHNOLOGY

Even the hardest pipes can suffer from weak points at the joint of the flange or weld-on collar. With advanced weld protection technology from ESSER, we reduce the impact of heat on the hardened inner pipe to avoid any loss of hardening. As a result, ESSER TWIN PIPES retain their performance and last longer than conventional steel pipe. 

Frequently-Asked Questions

Why is the weak point of hardened steel pipe often at the joint weld of the flange or weld-on collar?

The weld seam is the bridge between the conveying section of the pipe and the joint geometry (flange or weld-on collars). It is designed so that some piping systems can withstand operating pressures of up to 200 bar. Depending on the application, the weld seam must be stable enough to withstand external forces such as torsion, tensile or bending forces.

If it is already a challenge to create an application-dependent, stable weld seam with unhardened steel pipes, it is even more difficult with hardened pipes.

Any exposure of the hardened inner layer of the pipes to heat must be avoided in order to preserve their wear properties.
In the case of improper welds, where the welding heat has softened the hardened steel again, the subsequent leakage point is already predetermined during pipe production. The pipe will be the first to wear under the weld seam, slowly wash out and finally fail. A catastrophe for critical applications.

How does ESSER advanced weld technology help strengthen the joint weld on hardened inner pipes in a concrete pumping system?

ESSER’s “Advanced Welding Protection Technology” improves the strength of welded joints through the use of special techniques such as precisely calculated cooling during welding and precision-controlled manufacturing processes. Cooling helps to reduce the heat impact on the hardened inner tube.

ESSER also uses advanced welding techniques to achieve cleaner and more consistent welds with fewer defects. These processes ensure a better connection between the flange or Weld-on collar and the pipe, resulting in a more durable joint. With a combination of cooling technology and stronger welds, we can extend the life of your concrete pumping system and help users work more safely.

Want to learn more about which ESSER TWIN PIPE series is right for you? Contact us today for a free consultation.