靜音止回閥，又稱(chēng)靜音止回閥消聲止回閥。靜音止回閥是一種自動(dòng)閥門(mén)，依靠介質(zhì)流動(dòng)的壓力實(shí)現(xiàn)閥瓣的開(kāi)啟和關(guān)閉。當(dāng)介質(zhì)流經(jīng)閥體時(shí)，閥瓣被閥瓣推開(kāi)。介質(zhì)壓力，閥門(mén)打開(kāi)，介質(zhì)流過(guò)。當(dāng)介質(zhì)停止流動(dòng)時(shí)，閥瓣失壓自動(dòng)關(guān)閉，阻斷介質(zhì)回流。滬工閥門(mén)小編告訴你消聲止回閥的用途是防止給排水系統(tǒng)和高層建筑管網(wǎng)系統(tǒng)中的介質(zhì)倒流，防止泵和驅(qū)動(dòng)電機(jī)反轉(zhuǎn)，防止泵和驅(qū)動(dòng)電機(jī)的逆向排放。容器介質(zhì)。
Silent check valve, also known as silent check valve silencing check valve. A silent check valve is an automatic valve that relies on the pressure of medium flow to open and close the valve disc. When the medium flows through the valve body, the valve disc is pushed open by the valve disc. Medium pressure, valve opens, medium flows through. When the medium stops flowing, the valve disc automatically closes due to pressure loss, blocking the medium backflow. The editor of Shanghai Engineering Valve told you that the purpose of silencing check valves is to prevent media backflow in water supply and drainage systems and high-rise building pipe network systems, prevent pump and drive motor reversal, and prevent reverse discharge of pump and drive motor. Container medium.
靜音止回閥特點(diǎn)：
Silent check valve features:
閥瓣設(shè)計(jì)仿照“子彈頭”，閥體設(shè)計(jì)仿照“腰鼓”，不僅改善了介質(zhì)的流向，而且還降低了流體阻力和流阻系數(shù)。
The valve disc design imitates the "bullet head", while the valve body design imitates the "waist drum", which not only improves the flow direction of the medium, but also reduces the fluid resistance and flow resistance coefficient.
靜音止回閥體積小，低。結(jié)構(gòu)短而緊湊，導(dǎo)軸與導(dǎo)架之間裝有非金屬潤(rùn)滑套，提高了閥瓣運(yùn)動(dòng)的靈活性，不易產(chǎn)生鎖死現(xiàn)象，能有效因閥盤(pán)的影響。
The silent check valve has a small volume and low price. The structure is short and compact, with a non-metallic lubricating sleeve installed between the guide shaft and the guide frame, which improves the flexibility of valve disc movement and is not prone to locking, effectively eliminating the influence of the valve disc.
骨架橡膠密封圈鑲嵌在閥體上，避免了密封圈被介質(zhì)直接沖刷，延長(zhǎng)了密封圈的使用壽命。
The skeleton rubber sealing ring is embedded on the valve body, avoiding direct erosion of the sealing ring by the medium and extending the service life of the sealing ring.
閥瓣啟閉行程短，可防止水錘的發(fā)生。
The valve disc has a short opening and closing stroke, which can prevent the occurrence of water hammer.
消聲止回閥的應(yīng)用領(lǐng)域一般安裝在合適的排水系統(tǒng)和高層建筑管網(wǎng)系統(tǒng)的泵出口處。此外，該閥門(mén)不適合在污水管網(wǎng)中安裝使用。
The application field of silencing check valves is generally installed at the pump outlet of suitable drainage systems and high-rise building pipeline systems. In addition, this valve is not suitable for installation and use in sewage pipelines.
靜音止回閥的維護(hù)與保養(yǎng)如下：
The maintenance and upkeep of the silent check valve are as follows:
貯運(yùn)時(shí)啟閉件應(yīng)在關(guān)閉裝置內(nèi)，并同時(shí)做好以下工作：
During storage and transportation, the opening and closing parts should be inside the closing device, and the following work should be done simultaneously:
①靜音止回閥的翻板應(yīng)固定在打開(kāi)位置。
① The flap of the silent check valve should be fixed in the open position.
②內(nèi)徑兩端的開(kāi)口用泡沫板堵住，端口必須用悶蓋堵住，防止灰塵和生銹，保持通道清潔和端面平整；
② The openings at both ends of the inner diameter shall be blocked with foam plates, and the ports must be blocked with closed covers to prevent dust and rust, and to keep the channel clean and the end face flat;
③ 對(duì)筒體部分進(jìn)行適當(dāng)?shù)陌b保護(hù)防震防撞；
③ Properly package and protect the cylinder body from shock and collision;
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