What is the purpose of a check valve on a steam pipe?
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What is the purpose of a check valve on a steam pipe? With steam being supplied continuously, is it still possible to go back?
Is there a piping layout diagram? Our turbine is of extraction type, and it has a quick-shut valve on the S40 pipeline to prevent steam from the pipeline network from entering the turbine.
It depends on your manufacturing process. From a superficial perspective, it’s possible that the pressure in the heating equipment is high; in such cases, safety valves and check valves are necessary
There are several scenarios to consider here: 1. If the outlet of the steam trap leads back to the same condensate collection pipeline, and if no check valve is installed, the condensate discharged by the operating equipment may flow back into other equipment that is not in use. 2. If a check valve is installed, even if the outlet of the steam trap is connected to the same collection pipeline, there will be no backflow of condensate discharged from the operating equipment into other inactive equipment. 3. There are many factors that cause water hammer in steam pipes. The main cause of water hammer in the condensate recovery pipeline is the backflow of condensate from the lift pipe. Installing check valves in these locations is highly effective in preventing water hammer caused by backflow.
Sometimes it is related to the subsequent processing steps. Our company’s products are steam ejectors (commonly referred to as pressure matchers or steam distributors in China). The operation of these devices involves mixing high-pressure steam with low-pressure steam to produce medium-pressure steam for output; under extreme conditions, this can lead to steam flowing back into the low-pressure steam pipes, which is why check valves are necessary. Under normal circumstances, as the person from Haiyou upstairs has already said, it is generally to prevent condensation and water hammer.