Bypass Termojet for manifold TJ-B-1

Termojet TJ-B-1 bypass — a pressure-relief valve installed between the supply and return of the underfloor heating manifold. When the thermal actuators close all circuits, the bypass opens a small bypass channel and ensures minimum coolant circulation through the pump — this protects the pump from running dry and prevents water hammer.

This component is especially important in zone-controlled systems where thermal actuators can simultaneously close all loops. Compatible with the Termojet manifold with flow meters and any other manifolds in underfloor heating systems.