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Winter butterfly valve antifreeze and maintenance

13 views Source: VALTEC China Valve Manufacture CO.,LTD

Coming into winter, winter outdoor temperature is low, the butterfly valve pipeline will appear frozen, if not handled in a timely manner, it is easy to malfunction, affecting the operation of the valve, a serious set of accidents occur, the valve anti-freeze treatment is very important.

Winter butterfly valve antifreeze and maintenance

Before winter, check all kinds of anti-freezing measures in advance to provide sufficient time to deal with anti-freezing problems, pipelines, butterfly valves and their accessories wrapped in insulation cotton insulation, fixed with wire to ensure that insulation is in place.

Winter butterfly valve antifreeze and maintenance
Winter butterfly valve antifreeze and maintenance

For valves that have not been used for a long period of time, they can be emptied and treated according to the following steps.

  • Close the relevant valves, adding blind plates if necessary, to prevent internal leakage from the valves.
  • Opening the high point exhaust valve and the low point purge valve to empty the equipment of material.
  • Blowing and replacing the residual material with nitrogen gas.

Never strike the valve with a spanner or other heavy object if freezing is detected during use and normal operation is not possible. The correct course of action is to close the valve, thaw it with steam or hot water and then open it again.

Frost check

Regular anti-freeze checks are an important part of winter anti-freeze work and can be carried out in a timely manner to identify and deal with problems that arise during the anti-freeze process and effectively avoid the expansion of the freeze blockage problem.
According to different time periods, temperature conditions, the difficulty of freezing, focused on inspection.

VALTECCN is a China Butterfly Valve supplier and manufacturer, exporting all over the world, with years of experience in butterfly valve, if you have any butterfly valve working condition questions, purchase needs, price inquiry feel free to contact us.

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