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三精真空閥門:GD高真空擋板閥
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詳細信息：



	■	GD型高真空擋板閥用于接通或切斷真空管路中的氣流。適用介質為純凈空氣和非腐蝕性氣體。高真空擋板閥按軸封結構可分GD-J型橡膠軸封和GD-Jb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。

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GD型高真空擋板閥

High Vacuum Flapper Valve

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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-Jbbellows 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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GD型高真空擋板閥主要技術性能
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, bellowsshaft seal

CONSTRUCTION FIGHTSmm

■	外形及連接尺寸mm OverallConnection Dimensionsmm

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快卸法蘭連接

Model 型號	DN	D1	D	A	H	P	法蘭標準
GD-J10b	10	12.2	30	40	124.5	60	GB4982
GD-J16b	16	17.2	30	40	124.5	60
GD-J25b	25	26.2	40	50	134.5	78
GD-J32b	32	34.2	55	58	153	78
GD-J40b	40	41.2	55	65	160.5	78
GD-J50b	50	52.2	75	70	203	78

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活套法蘭連接

Model 型號	DN	D1	Do	D2	A	P	H	n-φc	Dny預抽口	法蘭標準
GD-J50	50	110	90	55	70	78	203	4-φ9		GB6070
GD-J63	63	130	110	68	88	160	380	4-φ9
GD-J80	80	145	125	85	98	160	400	8-φ9
GD-J100	100	165	145	105	108	160	420	8-φ9
GD-JS160	160	225	200	165	158	160	575	8-φ11	DN40 GB4982
GD-JS200	200	285	260	208	200	160	655	12-φ11	DN50 GB6070
GD-JS250	250	335	310	258	208	250	690	12-φ11	DN63 GB6070
GD-JS320	320	425	395	328	250	250	785	12-φ14	DN80 GB6070
GD-JS150	150	220	195	156	158	160	575	8-φ12	DN40 GB4982	JB919
GD-JS300	300	380	350	308	250	250	785	8-φ14	DN80 GB6070	JB919