How to protect Ball Valve from freezing

If you select and install a suitable Ball Valve, as long as steam passes through it, there will be no freezing problem. But if the steam is cut off, the steam condensate will form a vacuum in the heat exchanger or accompanying pipe. This prevents condensation from draining freely from the system before freezing occurs. Therefore, install a vacuum breaker between the equipment being discharged and the Ball Valve. If gravity discharge is not used from the Ball Valve to the return pipe, the Ball Valve and discharge line should be manually discharged or automatically discharged using a discharge pipe with anti-freeze measures. Also, when multiple Ball Valve are installed together in a Ball Valve station, insulating the Ball Valve can prevent freezing.

1. Do not choose a Ball Valve that is too large.
2. Keep the Ball Valve discharge line as short as possible.
3. Tilt the Ball Valve discharge line downward to speed up gravity discharge.
4. Insulate the Ball Valve discharge pipeline and condensate return pipeline.
5. When the condensate return pipeline is exposed to atmospheric conditions, adding a heating pipe should be considered.
6. If the return pipe is raised, the vertical discharge pipe should be adjacent to the discharge pipe on the upper part of the return header, and the discharge pipe and the Ball Valve discharge pipe should be insulated together.