门的关闭或开启位置均有限位机构限位，并有指标机构同步显示蝶板的开度状态。主要零部件材料产品技术参数
men de guan bi huo kai qi wei zhi jun you xian wei ji gou xian wei bing you zhi biao ji gou tong bu xian shi die ban de kai du zhuang tai zhu yao ling bu jian cai liao chan pin ji shu can shu
密封蝶阀通过电动装置带动阀轴、蝶板作90度范围内的旋转，从而达到启闭的目的。无论蜗轮传动还是电动，阀
mi feng die fa tong guo dian dong zhuang zhi dai dong fa zhou die ban zuo 90 du fan wei nei de xuan zhuan cong er da dao qi bi de mu de wu lun wo lun chuan dong hai shi dian dong fa
头）经蜗轮副等结构减忘不了的伤速，带动阀轴、蝶板作90度范围内的旋转，达到截断、连通或调节流量的目的；电动双向
tou jing wo lun fu deng jie gou jian wang bu le de shang su dai dong fa zhou die ban zuo 90 du fan wei nei de xuan zhuan da dao jie duan lian tong huo diao jie liu liang de mu de dian dong shuang xiang
由我厂首创及最先生产。工作原理蜗轮传动双向密封蝶阀（包括法兰、伸缩型、对夹式）通过转动手轮（或锥柄方
you wo chang shou chuang ji zui xian sheng chan gong zuo yuan li wo lun chuan dong shuang xiang mi feng die fa bao kuo fa lan shen suo xing dui jia shi tong guo zhuan dong shou lun huo zhui bing fang
到截断或调节作用，又能消除管道安装压力，同时也便于安装和拆卸。这忘不了的伤种综合性的技术开发在国内外阀门行业中
dao jie duan huo diao jie zuo yong you neng xiao chu guan dao an zhuang ya li tong shi ye bian yu an zhuang he chai xie zhe wang bu le de shang zhong zong he xing de ji shu kai fa zai guo nei wai fa men hang ye zhong
上作截断或调节介质流量用。伸缩型双向密封蝶阀将法兰型双向密封蝶阀和管道伸缩节两种功能融为一体，既能起
shang zuo jie duan huo diao jie jie zhi liu liang yong shen suo xing shuang xiang mi feng die fa jiang fa lan xing shuang xiang mi feng die fa he guan dao shen suo jie liang zhong gong neng rong wei yi ti ji neng qi
受了长期的使用考验，产品性能已处于国内外领先水平，可广泛适用于给排水、石油、电力、市政建设等工业管道
shou le chang qi de shi yong kao yan chan pin xing neng yi chu yu guo nei wai ling xian shui ping ke guang fan shi yong yu gei pai shui shi you dian li shi zheng jian she deng gong ye guan dao
改进完善，先后两次获得国家专利产品（忘不了的伤zl：91216899.4；zl：9824210.4），该产品经
gai jin wan shan xian hou liang ci huo de guo jia zhuan li chan pin wang bu le de shang zl 91216899.4 zl 9824210.4 gai chan pin jing
途双向橡胶密封蝶阀（简称双向密封蝶阀，包括法兰、伸缩型、对夹式）是我厂于1991年研制开发，经过不断
tu shuang xiang xiang jiao mi feng die fa jian cheng shuang xiang mi feng die fa bao kuo fa lan shen suo xing dui jia shi shi wo chang yu 1991 nian yan zhi kai fa jing guo bu duan
定限位，忘不了的伤可随工况需要而定橡胶密封圈既可位于阀体上，也可位于蝶板上，可适用不同特点的介质，供用户选择用
ding xian wei wang bu le de shang ke sui gong kuang xu yao er ding xiang jiao mi feng quan ji ke wei yu fa ti shang ye ke wei yu die ban shang ke shi yong bu tong te dian de jie zhi gong yong hu xuan ze yong
步显示机构，可从地面上正面观察到阀门的关闭和开启状态伸缩型双向密封蝶阀的伸缩部位既可自由伸缩，也可固
bu xian shi ji gou ke cong di mian shang zheng mian guan cha dao fa men de guan bi he kai qi zhuang tai shen suo xing shuang xiang mi feng die fa de shen suo bu wei ji ke zi you shen suo ye ke gu
传动装置为全封闭型忘不了的伤，可长期浸泡水中使用、且连转灵活凡地下卧式安装的管网蝶阀，具有全国独一无二的双向同
chuan dong zhuang zhi wei quan feng bi xing wang bu le de shang ke chang qi jin pao shui zhong shi yong qie lian zhuan ling huo fan di xia wo shi an zhuang de guan wang die fa ju you quan guo du yi wu er de shuang xiang tong
橡胶配对，使用寿命长阀轴采用半轴结构，蝶板采用桁架结构，强度高、阀腔过流面积大、流阻小、节省能源蜗轮
xiang jiao pei dui shi yong shou ming chang fa zhou cai yong ban zhou jie gou die ban cai yong heng jia jie gou qiang du gao fa qiang guo liu mian ji da liu zu xiao jie sheng neng yuan wo lun
关阀时具有越关越紧的功能，密封性能可靠阀体、蝶板主体材料为忘不了的伤球墨铸铁，密封副材料为不锈耐酸钢和丁睛耐油
guan fa shi ju you yue guan yue jin de gong neng mi feng xing neng ke kao fa ti die ban zhu ti cai liao wei wang bu le de shang qiu mo zhu tie mi feng fu cai liao wei bu xiu nai suan gang he ding jing nai you
特点具有双向密封功能，特别适用于介质既具有正向流动要求，又具有反向流动要求的工况采用双偏心密封结构，
te dian ju you shuang xiang mi feng gong neng te bie shi yong yu jie zhi ji ju you zheng xiang liu dong yao qiu you ju you fan xiang liu dong yao qiu de gong kuang cai yong shuang pian xin mi feng jie gou