RETZ瑞茨『進(jìn)口緩閉式止回閥』詳細(xì)介紹●RETZ水力控制閥系列●RETZ緩閉止回閥●產(chǎn)品數(shù)據(jù)
?進(jìn)口緩閉止回閥描述--
RETZ緩閉止回閥有隔膜式和活塞式兩種結(jié)構(gòu),主要安裝在取水、送水、加壓、潛水污水等泵站的水泵出水管道上,同時(shí)兼具止回閥，截止閥,過(guò)濾器,調(diào)節(jié)閥以及水錘消除器的作用。
RETZ shut-off check valve has two types of diaphragm and piston type, which are mainly installed on the water pump water outlet pipe of pumping stations, such as water intake, water delivery, pressurization, diving sewage and so on. It also has the function of check valves, cut-off valves, filters, regulating valves and water hammer eliminators.
?進(jìn)口緩閉止回閥原理--
1.當(dāng)水泵開(kāi)啟時(shí)，水通過(guò)導(dǎo)管進(jìn)入中腔，推動(dòng)活塞上升，主閥開(kāi)啟。
2.當(dāng)水泵停止工作時(shí)，活塞在回水壓力下降，由于進(jìn)口處針形閥比出口球閥流量小，因此活塞緩慢下降，主閥也隨之緩慢關(guān)閉。
?進(jìn)口緩閉止回閥特點(diǎn)--
1.將緩開(kāi)、速閉消除水錘的技術(shù)原理一體化，防止開(kāi)泵水錘和停泵水錘的產(chǎn)生。
2.只需操作水泵電機(jī)啟閉按扭，閥門即按照水泵操作規(guī)程實(shí)現(xiàn)自動(dòng)開(kāi)閉。
3.閥體采用了全通道流線型直流式設(shè)計(jì)，壓力損失小、流量大、具體積小、重量輕
?進(jìn)口緩閉止回閥參數(shù)--
材質(zhì):鑄鐵、鑄鋼;
壓力:≤2.5Mpa
口徑:DN50-DN500
緩閉時(shí)間：3~60s(可調(diào))
低動(dòng)作壓力：≥0.04 Mpa
