Ductile iron slow closing check valve 300X-16Q

300X Slow Closing Check Valveby the main valve,check valve,needle valve,ball valvepolymorphicfilterand pressure gauges to form a hydraulically controlled receiver system. Utilizing hydraulic automatic operation, it can make the main valve get rapid opening or slow closing speed. Preventing the generation of water shock of water clock, in order to achieve the effect of slow-closing muffling. When the slow closingcheck valveWhen water is fed from the inlet end, the water enters the main valve control chamber through the micro filter, needle valve, and check valve, and then drains to the downstream through the ball valve. Because the needle valve opening degree is smaller than the ball valve opening degree, that is, the main valve control room drainage rate is greater than the speed of water intake, so the control room pressure is reduced, the role of the main valve disk at the lower end of the inlet pressure to open the main valve to the downstream water supply. When the pipeline stops supplying water, if the downstream water begins to flow back, part of the return water through the ball valve into the main control room, due to the check valve, the return water can not flow out of the main control room, causing the main control room to gradually increase the pressure, slowly close the main valve.

性能特点

• 结构新颖合理、合理运用液压原理控制论；

• 工作平稳可靠、流量大；

• 阀瓣快开慢闭、无水锤冲击（关闭时间可调）；

• 止回密封效果好、使用寿命时间长；

• 安装维修方便。

Product Parameters

Product Size Reference