高温高压电站截止阀主要特点及用途①阀门与管路连接采用焊接式结构，安装方便，无泄漏。②密封面不易磨损、擦伤、密封性能好、寿命长。③结构紧凑、启闭性好、高度小、维修方便。④适用于水、蒸汽、油品管路上，具有耐高温、耐高压的特点。⑤多种结构形式，便于用户选择。主要性能和使用范围产品型号公称压力PN(MPa)试验压力(MPa)工作压力(MPa)工作温度（℃）适用介质壳体强度密封P54P55P57J61H-100Y101511///≤450(425)水、蒸汽、油品J61H-200Y203022///J61H-250Y253828///J61H-320Y324836///J61Y-P54100V/3012.510//≤540蒸汽J61Y-P54140V/3817.514//J61Y-P54170V/5321.317//J61Y-P55100V/3812.5/10/≤550J61Y-P55140V/4817.5/14/J61Y-P55170V/5321.3/17/J61Y-P57100V/4812.5//10≤570J61Y-P57140V/5517.5//14J61Y-P57170V/6021.3//17主要零件材料零件名称阀体阀盖阀杆阀瓣密封面填料阀杆螺母手轮紧固件J61H型J961H型25WCB25WCB铬不锈钢铬钼铝钢氮化铬不锈钢铬不锈钢柔性石墨铝青铜可锻铸铁优质碳钢铬钼钢J61Y型J961Y型25WCB25WCB铬不锈钢铬钼铝钢氮化25硬质合金J61Y-P54型J961Y-P54型12Cr1MoVWC612Cr1MoVWC620Cr1Mo1VA38CrMoA1A12Cr1MoV硬质合金J61Y-P55型J961Y-P55型12Cr1MoVWC612Cr1MoVWC620Cr1Mo1VA38CrMoA1A12Cr1MoV硬质合金J61Y-P57型J961Y-P57型12Cr1MoVWC912Cr1MoVWC920Cr1Mo1VA25Cr2MoVA12Cr1MoV硬质合金 主要性能和使用范围产品型号公称压力PN(MPa)试验压力(MPa)工作压力(MPa)工作温度（℃）适用介质壳体强度密封P54P55P57J961H-100Y101511///≤450水、蒸汽、油品J961H-200Y203022///J961H-250Y253828///J961H-320Y324836///J961Y-P54100V/3012.510//≤540蒸汽J961Y-P54140V/3817.514//J961Y-P54170V/4821.317//J961Y-P55100V/3812.5/10/≤550J961Y-P55140V/4817.5/14/J961Y-P55170V/5321.3/17/J961Y-P57100V/4812.5//10≤570J961Y-P57140V/5517.5//14J961Y-P57170V/6021.3//17主要尺寸公称通径主要外形尺寸和连接尺寸(mm)LD1D2D3αHJ961H-100、200、250、320 J961Y-P54100V、P54140V、P54170VY151501736/37.5°51820135 1702242/37.5°51825135 1702642/37.5°51832170 1803144/37.5°560402303860/37.5°54550（1）2505082/32°72850（2）320 3505082/32°74865370 2606910011032°82980400 430 4708410813032°898100455 56010714416532°91312560012417018432°118215070014618021232°1278J961Y-P55100V、P55140V、P55170V J961Y-P57100V、 P57140V、 P57170V151501740/37.5°51820135 1702246/37.5°51825135 1702646/37.5°51832170 1803149/37.5°560402303860/37.5°54550(1)2505090/32°72850(2)320 3505090/32°74865370 2606910411032°82980400 430 4708411014032°898100455 56010714817032°91312560012417018432°118215070014618021232°1278注:DN50为三种结构长度。