GD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。■GDHighVacuumFlapperValve■GDhighvacuumflappervalveisusedtoputthroughorcutofftheairflowinvacuumpipeline.Applicablemediumcanbepureairandnoncorrosivegases.Accordingtoitsshaftsealstructure,highvacuumflappervalveisclassifiedintoGD-JrubbershaftsealtypeandGD-J(b)bellowsshaftsealtype.Accordingtoitsput-throughtype,itisclassifiedintoGD-JangletypeandGD-Sthree-waytypewithprepumping.■主要技术性能MainTechnicalPerformance■■■适用范围：Applicability105～1.3×10-4Pa(轴封为橡胶)105～1.3×10-5Pa(轴封为波纹管)阀门漏率：ValveLeakRate≤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：ApplicableTemperature-25～+80℃(***橡胶)-30～+150℃(氟橡胶)■主要零件材料MaterialsofMainParts■■阀体、阀盖、阀杆：铝合金、碳钢或不锈钢密封件：***橡胶、氟橡胶、波纹管(轴封)。Body,bonnetandstem:aluminiumalloy,carbonsteelorstainlesssteelSealingelement:NBR,Viton,bellows(shaftseal)C***TRUCTIONFIGHTS(mm)■外形及连接尺寸(mm)OverallandConnectionDimensi***(mm)■快卸法兰连接Model型号DND1DAHP法兰标准GD-J10(b)1012.23040124.560GB4982GD-J16(b)1617.23040124.560GD-J25(b)2526.24050134.578GD-J32(b)3234.2555815378GD-J40(b)4041.25565160.578GD-J50(b)5052.2757020378■活套法兰连接Model型号DND1DoD2APHn-φcDny预抽口法兰标准GD-J5050110905570782034-φ9GB6070GD-J636313011068881603804-φ9GD-J808014512585981604008-φ9GD-J1001001651451051081604208-φ9GD-J(S)1601602252001651581605758-φ11DN40GB4982GD-J(S)20020028526020820016065512-φ11DN50GB6070GD-J(S)25025033531025820825069012-φ11DN63GB6070GD-J(S)32032042539532825025078512-φ14DN80GB6070GD-J(S)1501502201951561581605758-φ12DN40GB4982JB919GD-J(S)3003003803503082502507858-φ14DN80GB6070JB919)