Z43H/X型平板闸阀适用于石油、天然气、水、油品等管路上，用于截断或接通管路中的介质。【设计与制造标准】●设计与制造：JB/T5298API6D●法兰尺寸：JB/T79ANSIB16.5MSSSP44●压力温度：ANSIB16.34●结构长度：JB/T5298ANSIB16.10●对焊连接尺寸：GB/T12224ANSIB16.25●检验与试验：JB/T9092API6D平板闸阀的特点：1.阀座的密封结构应为弹性有预紧力，上、下游密封座同时密封的结构。阀座与密封物间始终为面对面密封。2.阀座有自清洗功能，并且在阀门开启或关闭过程中不受气流的直接冲刷。阀座应由有润滑、不磨损材料制成。3.阀门执行机构的故障不会影响到阀门的其它部分，维修和更换工作能够在不拆下阀门的情况下进行。(1)轭架套管–铝青铜轭架套管配置针形止推轴承，最大程度减少操作扭矩。(2)阀杆–螺纹长度直到托架；销钉和点焊；具有稳定性。(3)压力密封–结构简单，配置分段扣环和镀银低碳钢垫圈，有助于拆卸和实现最好的阀帽密封。(4)阀座环–焊接阀座环垂直于流动通道，易于维护。(5)执行机构–这些阀门可以配置电动、液动或气动执行机构。DN300以下配置标准手动手轮，DN350以上配置斜齿轮操作机构。(6)轭架–完全装配式轭架通过抗震测试，易于维护和安装执行机构。(7)压盖–两件式，自调节压盖，避免被弹出。(8)整体后座–硬面，使用寿命最长。(9)阀瓣–弹簧负载阀瓣能够自行调节，减少执行机构的扭矩需求。(10)整体止动–整体铸造托架止动装置，定位组装的托架阀瓣，使得阀座更加稳定可靠。安装尺寸及重量】(ANSI600LbGB10.0Mpa)DN5065801001502002503003504004505006000L292330356432559660787838889991109211941397L1292330356432559660787838889991109211941397H1351651952403804605456607057908809651285H150056063073595511501440154518151965---H2--11301300147016751890219525402745304033204080H388100110120160185230265290320360395470D03003503504005006006507008001000---D1--250250300300350350350400500600650【安装尺寸及重量】(ANSI400LbGB6.4Mpa)DN506580100150200250300350400450500600L250280310350450550650750850950105011501350L129233035640649559767376282690297810541232H1351651952403804605456607057908809651285H15005606307359551150144015451815196522952450-H2--11301300147016751890219525402745304033204080H388100110120160185230265290320360395470D02503003003503504005006006507008001000-D1--250250300300350350350400500600650【安装尺寸及重量】(ANSI300LbGB4.0Mpa)DN506580100150200250300350400450500600L2162412833054034194575027628389149911143L12162412833054034194575027628389149911143H1201501802203454204956006407208008751170H147553560070091010951370147017301870218523352815H2--10751240140015951800209024202615289531603885H38090100110145170210240265290325360425D02503003003503503504505006006507008001000D1--250250300300350350350400500600650【安装尺寸及重量】(GB2.5Mpa)DN506580100150200250300350400450500600L178190203229267292330356381406432457508L1216241283305403419457502572610660711813H1201501802203454204956006407208008751170H147553560070091010951370147017301870218523352815H2--10751240140015951800209024202615289531603885H38090100110145170210240265290325360425D02503003003503503504505006006507008001000D1--250250300300350350350400500600650)