Translate product model parameters?

Lock-up valve: It is stated that lock-up valves may be necessary when a control valve needs to remain in its final position in the event of a failure of the instrument air supply, or when a shut-off valve requires a higher pressure of instrument air than the minimum pressure guaranteed. When the compressed air supply fails and stops delivering air, the air lock valve is used to cut off the valve’s control circuit, thereby keeping the valve in its position before the air supply was interrupted. To ensure the normal progress of the process, the lock valve opens the passage only after the accident in the system is resolved and gas supply is restored, thereby returning to normal control. Hysteresis within 0.1 kgf/cm² is understood as hysteresis phenomenon; 0.1 kilogram-force. You can also check out this website: http://cn.made-in-china.com/showroom/zhakll/product-detailbqSxIBhHbRVJ/%E6%B0%94%E9%94%81%E9%98%80%EF%BC%88YT-400%EF%BC%89.html

Interesting; I went and looked into this phenomenon of hysteresis. Hysteresis refers to the situation in which the state of a system – usually a physical system – depends not only on its current inputs but also on the path taken by its past inputs, resulting in different outcomes. In other words, after a system operates through a certain input path, even if the same input values are used to return it to its initial state, the system cannot revert to that initial state. For example, take a piece of clay in your hand; after pressing it, if no further force is applied, the force exerted at that point is considered the same as when it was first placed in the hand. However, its shape has changed from before. Moreover, different pressing methods will result in different shapes. Common physical hysteresis phenomena include: hysteresis in magnetism, electrical hysteresis, elastic hysteresis, hysteresis associated with liquid-solid phase transitions, and contact angle hysteresis. It depends on what type of device you have. If it’s the air lock valve mentioned by Wangkai, is it a pressure deviation after reset?

Even with the same input values when returning to the initial state, the state cannot return to its original condition. Is it a delay to return to the initial state or a deviation after reset? :L

Reply to 4# zhuazhe2008: Although I haven’t actually used this device, I personally believe that the delay refers to the fact that when there is a problem with the air supply and the locking valve should activate, it doesn’t do so immediately; in other words, there is a slight delay. During this short period of time, the air pressure definitely decreases. This value is likely 0.1, meaning that 0.1 units of pressure are lost, and this can be understood as the pressure difference between before the locking valve activates and after it does.

Reply to 5# wangkai6191: Is this referring to the pressure loss resulting from the reaction time? As I understand it, there are two processes: 1) Stop supplying gas; the pipe pressure drops to X, the air lock valve locks up. Gas supply is resumed, the pipe pressure rises again, and the valve unlocks. The next time gas supply is stopped, the pressure drops to X-0.1, and the air lock valve locks up again. 2) Stop supplying gas; the pipe pressure drops to X, the air lock valve locks up when the pressure reaches X-0.1. Gas supply is resumed, the pressure rises again, and the valve unlocks. Which process does the term \"delay\" refer to?

Reply to 6# leteblink: It requires a higher instrument air pressure than the guaranteed minimum pressure! It needs to be higher than the minimum pressure required for normal operation! I lean towards the second option. If we follow the first approach and keep repeating the process, with X-0.1, it’s likely that the locking valve will no longer function!

Reply to 6# wangkai6191: It should be like this. If it’s -0.1 every time, it won’t last long! ! It’s impossible too!