HERZ 3000-TP Bypass body with shut-off function
Compensation instead of conversion
In many existing buildings, modern radiators with a 50 mm connection distance do not fit existing floor pipes with a 40 mm distance. In addition, the flow and return pipes on today's radiators are often reversed compared to earlier models, which makes connection to the existing floor pipes more difficult. HERZ offers a simple solution for such cases too: HERZ 3000-TP bypass bodies for single-pipe and two-pipe heating systems.
HERZ 3000-TP bypass body for single and two-pipe heating systems reliably compensates for the difference between 40 mm pipe spacing on the floor and 50 mm connection spacing on the radiator. This allows the radiator to be connected correctly and without tension to the existing piping.
At the same time, the internal cross-connection of the flow and return in the bypass body allows correct connection to modern radiators (see illustration on the right). This is a particularly important point, as incorrectly connected supply and return lines can cause problems in practice: end customers notice loud, constant banging or knocking noises as soon as the radiator is turned on.
The HERZ 3000-TP bypass body also has an integrated shut-off function. This allows the radiator to be shut off during renovations or replacements without taking the entire system out of service.
The big advantage in practice: no bending of pipes, no structural changes and no visual compromises. This saves both time and material and reduces the risk of leaks.
© 2026. HERZ
