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產(chǎn)品型號GD

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GD高真空擋板閥

GD型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。按軸封結(jié)構(gòu)可分GD-J型橡膠軸封和GD-J(b)型波紋管軸封兩種。按通導形式可分GD-J為角通型式，GD-S為帶預抽口的三通型式。

■	GD 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 airnoncorrosive gases. According to its shaft seal structure, high vacuum flapper valve is classified into GD-J rubber shaft seal typeGD-J(b)bellows shaft seal type. According to its put-through type, it is classified into GD-J angle typeGD-S three-way type with prepumping.

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主要技術(shù)性能
Main Technical Performance

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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、碳鋼或不銹鋼密封件：丁腈橡膠、氟橡膠、波紋管(軸封)。 Body, bonnetstem: aluminium alloy, carbon steel or stainless steel Sealing element: NBR, Viton, bellows(shaft seal)

CONSTRUCTION FIGHTS(mm)

■	外形及連接尺寸(mm) OverallConnection Dimensions(mm)

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快卸法蘭連接

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活套法蘭連接