NKJ61H/Y型真空截止阀适用于工作温度≤425℃和≤550℃，工作介质为水、蒸汽或空气的管路上，作为启闭装置；尤其适用于火电厂汽机冷凝和真空负压系统，起真空隔离密封作用。【结构图】【NKJ61H/Y型真空截止阀主要尺寸及重量】公称通径DN/mm公称压力PN/MPa主要外形尺寸和连接尺寸/mmLHDD0D1L1αW1O4.0130245361118.41O-12015130245361622.51O-12020150265442128.511-16025160270482634.512-200321802854834--37o30'200402003205540--37o30'240502303656448--37o30'3206529041O8266--37o30'3008031O4309578--37o30'3001003504701171OO--37o30'350125400500143126--37o30'350150480533167150--37o30'4001O6.4130245361O18.41O-12015130245361522.51O-12020150265442028.511-16025160270482534.512-200321802804833--37o30'200402003205539--37o30'240502303656448--37o30'3206529041O8265--37o30'3208031O4309576--37o30'36010035047011798--37o30'400125480500143123--37o30'400150480533167148--37o30'5001O10.O130245361O18.41O-12015130245361422.51O-12020150265442028.511-16025160270482534.512-200321802854832--37o30'200402003205538--37o30'240502303556448--37o30'3206529041O8263--37o30'3208031O4309574--37o30'3601OO35047011797--37o30'400125400500143123--37o30'400150480533167148--37o30'500注：PN4.0(40)阀门允许作为PN1.0(10)、PN1.6(16)、PN2.5(25)压力级选用【NKJ61H/Y型真空截止阀主要零件材料】零件名称密封面阀瓣阀杆阀体、阀盖阀杆螺母填料紧固件NKJ61H-C型H：合金钢铬不锈钢铬不锈钢25或WCB铝青铜膨胀复合石墨优质碳钢NKJ61Y-l型Y：硬质合金12CrlMo1VA20CrlM01vA或38CrMoAlA铬钼钢铬钼钢【NKJ61H/Y型真空截止阀主要性能规范】≤550产品类型壳体强度试验/MPa上密封试验/MPa密封试验/MPa适用介质适用温度/℃NKJ61H-406.O4.44.4水、蒸汽、空气≤425NKJ61H-64967.O7.ONKJ61H-10015.O11.011.ONKJ61Y-40l6.O4.44.4水、蒸汽、空气"3">NKJ61Y-64l9.67.07.ONKJ61Y-1OOI15.O11.O11.O更多华天阀门产品欢迎进入上海华天机电设备公司主页或来电咨询021-60402001)