詢價
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，
能通過反向液流的復(fù)合閥稱為單向順序閥。一般說來，這種閥使用較多。
順序閥的啟閉特性如果太差，則流量較大時壓力過高，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)，開啟壓力低于閉合壓力，負(fù)載流量變化時應(yīng)予注意。
開啟壓力過低的閥，再壓力低于設(shè)定壓力時發(fā)生前漏，引起執(zhí)行器誤動作。
通過閥的流量遠(yuǎn)小于額定流量時，產(chǎn)生振動或其他不穩(wěn)定現(xiàn)象。此時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
