Trap, antifreeze protection

Selection, installation and appropriate as long as there is steam trap, won't appear frozen. But if the steam is broken, the steam condensate will or in the heat exchanger tube to form a vacuum. This will prevent before freezing water discharge from the system free. So, to be emissions equipment and install a vacuum breaker between trap. If from the trap to return pipe instead of using gravity discharge, drain valve and discharge line should be with artificial emissions or using discharge tube automatic with antifreezing measures. Also, when multiple trap installed in trap stand together, to trap heat preservation to prevent freezing. Anti-freezing measures have trap don't choose size is too large, keep the trap discharge pipes as short as possible, downward sloping trap discharge pipeline, to speed up the gravity discharge, discharge pipe and the condensate trap backwater pipes with insulation, when condensate water pipe exposed to atmospheric conditions, should consider to add trace tube, if return pipe increases, the vertical discharge tube to the back to the upper manifold adjacent pipe, and the discharge pipe and the drain valve discharge pipe insulation.