PARKER溢流閥D41FCE89FC2NK00天津銷(xiāo)售
PARKER溢流閥是一種用于消防用水與生活用水并聯(lián)的供水系統(tǒng)中,用來(lái)調(diào)配供水方向的閥門(mén)。當(dāng)火災(zāi)發(fā)生時(shí),消防急需大量用水,立即切斷生活用水,確保足夠的消防用水;當(dāng)消防停止用水壓力減小時(shí),閥門(mén)自動(dòng)打開(kāi),呈常開(kāi)狀態(tài),恢復(fù)生活供水。該閥使系統(tǒng)無(wú)須另設(shè)專(zhuān)門(mén)的消防單獨(dú)供水管網(wǎng),大大地節(jié)約了建設(shè)本錢(qián)和用水量。閥門(mén)控制靈敏度高,安全可靠,調(diào)試簡(jiǎn)便,使用壽命長(zhǎng)。
溢流閥接近系統(tǒng)時(shí),液壓油會(huì)在閥芯產(chǎn)生作用力。力的方向與彈簧力的方向相反。進(jìn)油口壓力低于溢流閥的一定壓力時(shí),閥芯不打開(kāi)。在這種情況下,進(jìn)油口壓力主要取決于外部負(fù)荷。當(dāng)油液作用力大于彈簧力時(shí),閥門(mén)打開(kāi),從油液溢出的入口流回燃料罐。彈簧力隨著溢流閥開(kāi)口量的增加而增加,直到與液壓作用力平衡。溢流閥開(kāi)始溢出時(shí),進(jìn)油口的壓力基本穩(wěn)定在調(diào)整值上,充當(dāng)溢出調(diào)節(jié)器。通過(guò)壓力調(diào)節(jié)螺釘,可以調(diào)整彈簧預(yù)壓收縮量,調(diào)整溢流閥溢出壓力值的大小。
特點(diǎn)和優(yōu)勢(shì)
直動(dòng)及活塞緩沖區(qū)設(shè)計(jì)經(jīng)過(guò)測(cè)試,代表其在液壓領(lǐng)域的長(zhǎng)期經(jīng)驗(yàn)。
快速響應(yīng)、低泄漏和低延遲,提高產(chǎn)品精度和控制過(guò)程
允許5個(gè)壓力調(diào)節(jié)級(jí)別,適應(yīng)應(yīng)用程序
在所有情況下縮短交貨時(shí)間,不需要倉(cāng)儲(chǔ)
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PARKER溢流閥D41FCE89FC2NK00天津銷(xiāo)售
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