Self-acting pressure drain valve
一种排放阀、压力的技术,应用在隔膜阀、控制阀、平衡阀等方向
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[0017] Various non-limiting embodiments of the present invention provide an automatic pressure relief valve that does not require active control or input from a microcontroller and / or individual actuators. An automatic pressure relief valve can be placed in the system which changes the ambient pressure based on whether the system is operating or shut down. When the system is shut off (ie, not in operation), the automatic pressure drain valve is normally biased into an open position so that fluid (eg, water) can be drained through the valve's drain passage. However, when the system is operating (ie, open), the increased pressure induces the valve into the closed position. Accordingly, the discharge channel is sealed such that air leakage through the discharge channel is prevented. In this way, pressure within the ECS is maintained and overall efficiency is improved. Because the vent channel can be selectively closed, the diameter of the vent channel can be sized larger than c...
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