品牌西博思种类止回阀型号H44H适用范围电力、石化、冶金、矿山等产品别名止回阀连接形式法兰材质铸钢结构形式旋启式公称通径DN50-DN800（mm）适用介质水、油、气等压力环境1.0-32.0（Mpa）工作温度425（℃）H44H/Y铸钢启式止回阀特点及优点●阀门承压件采用精密铸造工艺浇铸，表面质量美观，无粘沙、冷隔等表面缺陷；内在质量稳定，无疏松、砂眼、裂纹等内在缺陷。●旋启式止回阀采用内装摇臂旋启式结构，阀门的所有启闭件都装于阀体内部，不穿透阀体，除了中阀兰部位用密封垫片或密封环密封外，整体没有外漏点，杜绝了阀门外泄的可能。●旋启式止回阀摇臂和阀瓣连接处采用球面连接的结构，使得阀瓣在360℃范围内有一定的自由度，有适当的微量位置补偿。●阀门密封副的密封面堆焊合金钢(13Cr)或硬质合金Stellite6，即使用在有细粒的介质中亦不会因冲蚀而很快磨损。●用于较高压力（16Mpa或900Class以上）阀门的阀体与阀盖的连接采用压力自紧密封结构，楔形密封环与四开环组合，压力越高密封越可靠。H44H铸钢旋启式止回阀设计与制造标准：●设计与制造：ANSIB16.34API6DGB12236●法兰尺寸：ANSIB16.5JB/T79GB9113●压力温度：---●结构长度：ANSIB16.10GB12221●对焊连接尺寸：---●检验与试验：API598GB9131安装尺寸及重量：ANSI150LbNPS221/23456810121416182024L2032162412923303564956226997878649789781295H155190200225245260305390410435530570625675Wt1625344675891202203374715757889161275GB1.6MPaDN506580100125150200250300350400500L2302903103504004805506507508509501150H160175185200225265295330380430480560Wt22263339578095175260360496588ANSII300LbNPS221/23456810121416182024L26729231835540044453362271183886397710161346H180200225240275310370410440500545605675785Wt2632537311015723438445065080097013502210GB2.5MPaDN506580100125150200250300350400500L2302903103504004805506507508509501150H175190190215250270350410430450560620Wt2230355273103135196285388496641GB4.0MPaDN506580100125150200250300350400500L2302903103504004805506507508509501150H175190190215260270340400425460490620Wt2230345273103212297362450585641GB6.4MPaDN506580100125150200250300350400500L300340380430500550650775900102511501400H190205205235265295355405465515570620Wt304148721081552173414726278821027设计与制造标准：●设计与制造：ANSIB16.34API6DGB12236●法兰尺寸：ANSIB16.5JB/T79GB9113●压力温度：---●结构长度：ANSIB16.10GB12221●对焊连接尺寸：---●检验与试验：API598GB9131安装尺寸及重量：ANSI600LbNPS221/234568101214161820L29533335943551156266479184189299410951200H190215250260310350420490525580630690810Wt33496295120195360465725875107514751900GB10.0MPaDN506580100125150200250300L300340380430500550650775900H210230255295330365420505585Wt324260110170220390473737ANSI900LbNPS221/234568101214L3714223844605626137408419681038H195235260275320370435520530580Wt55709013516529552590010751225GB16.0MPaDN506580100125150200L300340380430500550650H220260270330390430510Wt4466100130168300578)