
GD型高真空擋板閥用于接通或切斷真空管路中的氣流。適用介質(zhì)為純凈空氣和非腐蝕性氣體。高真空擋板閥按軸封結(jié)構(gòu)可分GD-J型橡膠軸封高真空擋板閥和GD-J(b)型波紋管軸封高真空擋板閥兩種。按通導(dǎo)形式可分GD-J為角通型式高真空擋板閥,GD-S為帶預(yù)抽口的三通型式高真空擋板閥。GDQ型氣動(dòng)高真空擋板閥是通過(guò)電磁換向閥改變氣路方向,控制執(zhí)行氣缸驅(qū)動(dòng)閥門(mén)作啟閉運(yùn)動(dòng)。高真空擋板閥用于接通或切斷真空管路中的氣流。高真空擋板閥適用介質(zhì)為純凈空氣和非腐蝕性氣體。高真空擋板閥帶反饋信號(hào)裝置。
GD型高真空擋板閥 High Vacuum Flapper Valve
GD high vacuum flapper valve is used to put through or cut off the airflow in vacuum pipeline. Applicable medium can be pure air and noncorrosive gases. According to its shaft seal structure, high vacuum flapper valve is classified into GD-J rubber shaft seal type and GD-J(b)bellows shaft seal type. According to its put-through type, it is classified into GD-J angle type valve and GD-S three-way type with prepumping.
GD型高真空擋板閥主要技術(shù)性能 Main Technical Performance
適用范圍:Applicability 105~1.3×10-4Pa(軸封為橡膠) ; 105~1.3×10-5Pa(軸封為波紋管)
閥門(mén)漏率:Valve Leak Rate ≤1.3×10-4Pa.L/S.(軸封為橡膠) ; ≤1.3×10-5Pa.L/S.(軸封為波紋管)
適用溫度:Applicable Temperature -25~+80℃(丁腈橡膠) ; -30~+150℃(氟橡膠)
主要零件材料 Materials of Main Parts
閥體、閥蓋、閥桿:鋁合金、碳鋼或不銹鋼 Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
密封件:丁腈橡膠、氟橡膠、波紋管(軸封)。Sealing element: NBR, Viton, bellows(shaft seal)
高真空擋板閥是組成真空系統(tǒng)的三大元件之一,是真空系統(tǒng)中的控制元件,用高真空擋板閥可以實(shí)現(xiàn)系統(tǒng)中各部位截止和導(dǎo)通的作用。由于永嘉縣科本真空閥門(mén)廠生產(chǎn)的高真空擋板閥具有結(jié)構(gòu)簡(jiǎn)單、制造方便、使用安全、性能可靠、堅(jiān)固耐用、導(dǎo)通性能好、開(kāi)閉時(shí)間短、制造成本低等優(yōu)點(diǎn),因而高真空擋板閥在宇航、電子、機(jī)械、冶金、紡織、化工、建材、醫(yī)藥、食品等工業(yè)所需要的真空系統(tǒng)中采用。