詢價(jià)
進(jìn)口阿托斯疊加式順序閥,意大利ATOS疊加式順序閥
按工作原理和結(jié)構(gòu)，順序閥分直動(dòng)式和先導(dǎo)式兩類；按壓力控制方式，
順序閥有內(nèi)控和外控之分。 在順序閥中裝有單向閥，
能通過(guò)反向液流的復(fù)合閥稱為單向順序閥。一般說(shuō)來(lái)，這種閥使用較多。
順序閥的啟閉特性如果太差，則流量較大時(shí)壓力過(guò)高，回路效率降低。
The basic function of the sequence valve is to control the
sequence of multiple actuators, according to their different functions,
Respectively, called the sequence valve, back pressure valve, unloading valve and balance valve.
Sequential valve performance and relief valve is basically the same,
but because of the different functions of the sequential valve also has its special requirements:
(1) In order to make the implementation of the device to achieve accurate sequence requirements,
the requirements of the valve pressure regulator high precision, small deviation;
(2) in order to order the accuracy of the action required to close the valve when the leakage is small;
(3) For unidirectional sequential valves, reverse pressure loss and forward pressure loss are
required to be small. The main functions of the sequence valve are:
(1) controlling the sequential operation of the plurality of elements;
(2) for the pressure circuit;
(3) to prevent the self-weight caused by the cylinder piston free fall and do with the balance valve;
(4) with the external control valve to do unloading valve, the pump unloading;
(5) with internal control sequence valve for back pressure valve
啟閉特性帶有滯環(huán)，開(kāi)啟壓力低于閉合壓力，負(fù)載流量變化時(shí)應(yīng)予注意。
開(kāi)啟壓力過(guò)低的閥，再壓力低于設(shè)定壓力時(shí)發(fā)生前漏，引起執(zhí)行器誤動(dòng)作。
通過(guò)閥的流量遠(yuǎn)小于額定流量時(shí)，產(chǎn)生振動(dòng)或其他不穩(wěn)定現(xiàn)象。此時(shí)要再回路上采取措施。
進(jìn)口阿托斯疊加式順序閥,意大利ATOS疊加式順序閥
