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用途User調(diào)節(jié)與控制主閥的出口壓力，主閥出口壓力不因進(jìn)口壓力變化而改變，亦不因主閥出口流量的變化而改變其出口壓力
用途 User 調(diào)節(jié)與控制主閥的出口壓力，主閥出口壓力不因進(jìn)口壓力變化而改變，亦不因主閥出口流量的變化而改變其出口壓力?？捎糜谏罱o水，消防系統(tǒng)及工業(yè)給水系統(tǒng)。 Regulating and controlling the outlet pressure of the main valve, the outlet pressure of the main valve shall not change due to the import pressure change, nor shall it change the export pressure due to the change of the main valve outlet flow. It can be used for water supply, fire protection system and industrial water supply system. 該閥采用全通道流線型設(shè)計(jì)，流體阻力小，流量大，即可減動(dòng)壓也可減靜壓。 The valve adopts full channel flow line design, the fluid resistance is small, the flow is big, can reduce dynamic pressure also can reduce static pressure. 原理 Principle 介質(zhì)進(jìn)入閥體下腔，向上推動(dòng)閥瓣，同時(shí)介質(zhì)經(jīng)主閥外控制管進(jìn)入隔膜上腔，上腔的壓力由導(dǎo)閥調(diào)節(jié)。上腔與閥體下腔的壓力差決定了閥瓣的上下運(yùn)動(dòng)，從而改變出口壓力。當(dāng)上腔與下腔壓力相同時(shí)，閥瓣停在某一位置，出口壓力保持不變，起到穩(wěn)壓的作用。 The medium enters the lower chamber of the valve body and pushes the disc upward, while the medium is controlled by the outer control tube of the main valve into the diaphragm chamber. The upper chamber pressure is regulated by the guide valve. The pressure difference in the upper chamber and the lower chamber of the valve body determines the movement of the disc to change the outlet pressure. When the upper chamber is under pressure with the lower cavity, the disc stops at a certain position and the outlet pressure remains constant, acting as a stabilizing force. 執(zhí)行標(biāo)準(zhǔn) Executive standard 法蘭尺寸 Flange dimensions：GB/T 17241.6 試驗(yàn)檢驗(yàn) Test test：GB/T 13927 安裝圖典型 Installation diagram
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