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Bucher Hydraulics公司的插裝閥研發(fā)重點(diǎn)之一是比例節(jié)流閥和流量控制閥。而且,插裝閥技術(shù)同樣繞不開能效這個(gè)關(guān)鍵課題。因此,該公司的Lorenz Kallen認(rèn)為還需要兼顧諸如閥座密封性或是高流量時(shí)減少壓降delta p等方面的問題。
Bucher公司日前在市場(chǎng)上新推出的NG5/SAE08閥座密封比例節(jié)流閥是已實(shí)現(xiàn)量產(chǎn)的NG10和NG16節(jié)流閥產(chǎn)品家族中的新成員。Kallen稱:“這種性能強(qiáng)大的螺紋閥門在高流量時(shí)的壓力損失很小,而且密封性良好,在容易振動(dòng)的系統(tǒng)中功能表現(xiàn)非常穩(wěn)定。如今,對(duì)于在高負(fù)荷情況下精確控制運(yùn)動(dòng)而言,這是極為關(guān)鍵的標(biāo)準(zhǔn)!
MVRPSBA系列比例節(jié)流閥是一種采用3/4-16 UNF螺紋、具有伺服控制功能、性能強(qiáng)大的螺紋閥門,它適用于AL型螺孔(按照Bucher公司標(biāo)準(zhǔn))和C0820型螺孔(按照ANSI標(biāo)準(zhǔn))。
這種閥門可以根據(jù)具體的期望值對(duì)流量進(jìn)行無級(jí)調(diào)節(jié)。當(dāng)流量較小時(shí),將高分辨率顯示裝置和Bucher公司的壓力控制閥組合起來,便可以在補(bǔ)償負(fù)荷的情況下精確、可控地移動(dòng)較大的重物。比如,叉車可以準(zhǔn)確地卸下重物,然后再對(duì)準(zhǔn)目標(biāo),將重物舉起來。由于閥座密封性良好,因此當(dāng)重物被舉起之后,可以連續(xù)幾個(gè)小時(shí)保持位置不懂。這種節(jié)流閥可用于以下用途:
物料搬運(yùn)機(jī)械的升降移動(dòng)
農(nóng)業(yè)機(jī)械,比如載重車輛的比例式平臺(tái)刮板控制裝置
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