电动金属三偏心伸缩蝶阀用途User 本蝶阀适用温度≤80℃，用于石油、化工食品医药轻纺、造纸、电力、给排 水、气体管路上，作调节流量和截流介质的作用，具有补偿管道热胀冷缩的功能。 This butterfly valve，with the suitable temperatu re as=80℃，is used for the pipeline of petroleum，chemical，food，medicine，ight&textile，paper-makin9，water supply and drainage，gas for the flow adjustment and medium cut-off and holds the function to compensate heat-expansion cold-contraction of the pipeline 特点Characteristic 1、设计新颖、合理、结构*、重量轻、操作方便、起闭迅速。 2、本伸缩蝶阀既能起到调节流量和截流作用，又能补偿管道温差，所产生的热胀冷缩功能，同时也便于安装和拆卸，为一阀多用产品。 1 Brand-new and reasonable design,unique structure，light weight，easy operation，quick open-close. 2 This escopic butterfly valve can act as flow adjustment and cut-off and also compensate the heat-expansion cold-contraction of the pipeline caused due to temperature difference and is conveniently mountable and removable，as an one-valve muIti-purposes product 安装注意事项Precautions in installation 1、本蝶阀安装前必须清洗内腔杂物。 2、本阀可有一定范围内伸缩，安装前必须松开伸缩部位的密封垫压盖，然后待本阀门与管道所需要的长度后，再锁紧伸缩密封压盖。 1 Clear out the impurities inside of the internal cavity before to install this butterfly valve. 2 This valve is stretchable in a certain range and，before installation，the sealing pad of the stretching part shall be loosened and，then，whlength is set for both valve and pipeline，tightened.
