Valve opening and closing member is a disc-shaped disc, the valve body about its axis of rotation, so as to open and close a valve or regulating valve is called. Butterfly valve fully open to fully closed is usually less than 90 degrees, butterfly and butterfly lever itself is not a strong self-locking, in order to locate the disc to be installed on the valve stem worm reducer. By worm reducer, not only can make the disc with self-locking capability, so that the disc is stopped in any position, but also to improve the operational performance of the valve. Industry-specific characteristics of butterfly valves to high temperature, pressure range is higher, the valve nominal diameter large carbon steel valve body, valve plate seal with metal ring instead of the rubber ring. Large temperature valve welded steel plate manufacturing, mainly for high-temperature medium smoke duct and gas pipelines.
英国鹤牌“Hattersley”成立于1897年，具备一百多年制造优质阀门技术，主要产品有青铜，铸铁，球墨铸铁，铸钢，碳钢，不锈钢等材质的闸阀，截止阀，球形阀，蝶阀，Y型过滤器以及平衡阀等，适用于空调暖通，消防，给排水和蒸汽系统。
英国鹤牌早于1987成为*家获得ISO9001品质管理证书之阀门制造商，另外拥有多种英国工业标准协会BSI认可，Kitemark阀门以及英国用水器具检测中心WRAS卫生安全证，因此一般大型项目如机场，酒店，医院，购物中心，工厂以及高级办公楼都乐于采用。
作为Hattersley中国总代理，全力为您提供售前售中售后服务
英国鹤牌早于1987成为*家获得ISO9001品质管理证书之阀门制造商，另外拥有多种英国工业标准协会BSI认可，Kitemark阀门以及英国用水器具检测中心WRAS卫生安全证，因此一般大型项目如机场，酒店，医院，购物中心，工厂以及高级办公楼都乐于采用。
作为Hattersley中国总代理，全力为您提供售前售中售后服务
主要产品有青铜，铸铁，球墨铸铁，铸钢，碳钢，不锈钢等材质的闸阀，截止阀，球形阀，蝶阀，Y型过滤器以及平衡阀等，适用于空调暖通，消防，给排水和蒸汽系统。
971G全支耳式蝶阀 产品信息
