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| ■ | GD-J型高真空挡板阀 | | | | | ■ | GD型高真空挡板阀用于接通或切断真空管路中的气流。适用介质为纯净空气和非腐蚀性气体。高真空挡板阀按轴封结构可分GD-J型橡胶轴封和GD-J(b)型波纹管轴封两种。按通导形式可分GD-J为角通型式，GD-S为带预抽口的三通型式。 | |
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| ■ | 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 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 and GD-S three-way type with prepumping. | |
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| ■ | GD-J型高真空挡板阀主要技术性能
Main Technical Performance | | | | | ■
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■ | | 适用范围：Applicability | 105～1.3×10-4Pa(轴封为橡胶)
105～1.3×10-5Pa(轴封为波纹管) | | 阀门漏率：Valve Leak Rate | ≤1.3×10-4Pa.L/S.(轴封为橡胶)
≤1.3×10-5Pa.L/S.(轴封为波纹管) | | 适用温度：Applicable Temperature | -25～+80℃(丁腈橡胶)
-30～+150℃(氟橡胶) | | |
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| ■ | GD-J型高真空挡板阀主要零件材料
Materials of Main Parts | | | | | ■
■ | 阀体、阀盖、阀杆：铝合金、碳钢或不锈钢
密封件：丁腈橡胶、氟橡胶、波纹管(轴封)。
Body, bonnet and stem: aluminium alloy, carbon steel or stainless steel
Sealing element: NBR, Viton, bellows(shaft seal) | |
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| CONSTRUCTION FIGHTS(mm) |
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| ■ | GD-J型高真空挡板阀外形及连接尺寸(mm)
Overall and Connection Dimensions(mm) | |
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| ■ | 快卸法兰连接 | | | | Model
型号 | DN | D1 | D | A | H | P | 法兰标准 | | GD-J10(b) | 10 | 12.2 | 30 | 40 | 124.5 | 60 | GB4982 | | GD-J16(b) | 16 | 17.2 | 30 | 40 | 124.5 | 60 | | GD-J25(b) | 25 | 26.2 | 40 | 50 | 134.5 | 78 | | GD-J32(b) | 32 | 34.2 | 55 | 58 | 153 | 78 | | GD-J40(b) | 40 | 41.2 | 55 | 65 | 160.5 | 78 | | GD-J50(b) | 50 | 52.2 | 75 | 70 | 203 | 78 | | |
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| ■ | 活套法兰连接 | | | | Model
型号 | DN | D1 | Do | D2 | A | P | H | n-φc | Dny预抽口 | 法兰标准 | | 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-J(S)160 | 160 | 225 | 200 | 165 | 158 | 160 | 575 | 8-φ11 | DN40 GB4982 | | GD-J(S)200 | 200 | 285 | 260 | 208 | 200 | 160 | 655 | 12-φ11 | DN50 GB6070 | | GD-J(S)250 | 250 | 335 | 310 | 258 | 208 | 250 | 690 | 12-φ11 | DN63 GB6070 | | GD-J(S)320 | 320 | 425 | 395 | 328 | 250 | 250 | 785 | 12-φ14 | DN80 GB6070 | | GD-J(S)150 | 150 | 220 | 195 | 156 | 158 | 160 | 575 | 8-φ12 | DN40 GB4982 | JB919 | | GD-J(S)300 | 300 | 380 | 350 | 308 | 250 | 250 | 785 | 8-φ14 | DN80 GB6070 | JB919 | | 真空阀门定货须知：
一、①需采购的信茂高真空挡板阀产品名称与型号②高真空挡板阀口径③高真空挡板阀是否带附件以便我们的为您正确选型。
二、若已经由设计单位选定信茂公司的高真空挡板阀型号，请按高真空挡板阀型号直接向我司销售部订购()
三、当使用的场合非常重要或环境比较复杂时,请您尽量提供设计图纸和详细参数，由我们的信茂阀门专家为您审核把关。
四、我们追求的不是一次的利益关系，而是与您的长期合作。我们提供的不是低廉的劣质品，而是货真价实的真品。我们所有的信茂人兢兢业业只为了打造温州的品牌阀门，为您提供满意的产品。我们愿与您携手共进，共创辉煌。 我公司： |
