H42W-6P-DN250，H42W-6P-DN80不锈钢底阀 无锡温纳 厂家直销
H42W-6P-DN150,H42W-6P-DN200不锈钢底阀 无锡温纳
H42W-6P-DN400,H42W-16P-DN400不锈钢底阀 批发零售 无锡温纳
H42W-10P-DN65，H42W-6P-DN350不锈钢底阀 批发零售 无锡温纳
H42W-10P-DN40,H42W-10P-DN50不锈钢底阀 批发零售
H42W-10P-DN100,H42W-10P-DN125不锈钢底阀 批发零售
H42W-10P-DN400,H42W-16P-DN350不锈钢底阀
H42W-16P-DN65，H42W-10P-DN350不锈钢底阀 底阀价格 厂家直销
H42W-16P-DN40,H42W-16P-DN50不锈钢底阀 底阀价格 厂家直销
H42W-16P-DN40,H42W-16P-DN50不锈钢底阀 底阀价格 厂家直销
H42W-16P-DN100,H42W-16P-DN125不锈钢底阀 底阀价格 厂家直销
H42W-16P-DN100,H42W-16P-DN125不锈钢底阀 底阀价格 厂家直销
H42W-16P-DN80,H42W-16P-DN250不锈钢底阀 底阀价格
H42W-16P-DN80,H42W-16P-DN250不锈钢底阀 底阀价格
H42W-16P-DN150,H42W-16P-DN200,H42W-16P-DN250不锈钢法兰底阀 生产厂家 量多优惠
H42W-16P-DN150,H42W-16P-DN200,H42W-16P-DN250不锈钢法兰底阀 生产厂家 量多优惠
底阀是一种节约能源的阀,一般安装在水泵下吸管的底端.限制水泵管内液体返回水源,起着只进不出的功能，阀门盖上有很多个进水品和加强筋,起到了不易堵塞,主要应用在抽水的管路上.水道和支承的作用.有法兰连接和螺纹连接.
底阀由阀估,阀瓣,阀盖,衬套,密封圈等零件组成,水源的水从阀盖进入阀体.在流体的压力作用下,阀瓣打开水,当示停后出口管内的压力将阀瓣迅速关闭,液体将不会倒回水源,起到了即畅通抽水又节约水能损失的作用.
1、为了防止介质逆流，在设备、装置和管道上都应安装止回阀；
2、止回阀一般适用于清净介质，不宜用于含有固体颗粒和粘度较大的介质；
H71W-25P-DN20,H71W-25P-DN25,H71W-25P-DN32不锈钢对夹升降式止回阀 生产厂家
H71W-25P-DN40,H71W-25P-DN50,H71W-25P-DN65不锈钢对夹升降式止回阀 生产厂家
H71W-25P-DN80,H71W-25P-DN100,H71W-25P-DN125不锈钢对夹升降式止回阀 生产厂家
H71W-25P-DN200,H71W-25P-DN150,H71W-25P-DN250不锈钢对夹升降式止回阀 生产厂家
H71W-40P-DN20,H71W-40P-DN32,H71W-40P-DN25不锈钢对夹升降式止回阀 生产厂家
H71W-40P-DN50,H71W-40P-DN40,H71W-40P-DN65不锈钢对夹升降式止回阀 生产厂家
H71W-40P-DN80,H71W-40P-DN125,H71W-40P-DN100不锈钢对夹升降式止回阀 生产厂家
H71W-40P-DN150,H71W-40P-DN200,H71W-40P-DN250不锈钢对夹升降式止回阀 生产厂家
H42W-6P-DN40,H42W-6P-DN50,H42W-6P-DN65不锈钢法兰底阀
H42W-6P-DN80,H42W-6P-DN100,H42W-6P-DN125不锈钢法兰底阀
H42W-6P-DN150,H42W-6P-DN200,H42W-6P-DN250不锈钢法兰底阀
H42W-6P-DN350,H42W-6P-DN400,H42W-16P-DN400不锈钢法兰底阀
H42W-10P-DN40,H42W-10P-DN50,H42W-10P-DN65不锈钢法兰底阀
H42W-10P-DN80,H42W-10P-DN100,H42W-10P-DN125不锈钢法兰底阀
H42W-10P-DN150,H42W-10P-DN200,H42W-10P-DN250不锈钢法兰底阀
H42W-10P-DN350,H42W-10P-DN400,H42W-16P-DN350不锈钢法兰底阀
H42W-16P-DN40,H42W-16P-DN50,H42W-16P-DN65不锈钢法兰底阀
H42W-16P-DN80,H42W-16P-DN100,H42W-16P-DN125不锈钢法兰底阀
H42W-16P-DN150,H42W-16P-DN200,H42W-16P-DN250不锈钢法兰底阀