目前，PVC水管，法兰连接中大的问题主要是法兰本身不合格和法兰连接不合格。
现在市场上销售的一些法兰存在的质量问题有：
①法兰的钢材不合格，耐压强度较低，在使用若干个月或若干个年后，出现渗水。
②法兰的螺栓孔外缘距法兰的边缘太小，小于5mm，潜江PVC水管，在螺栓紧固时，易使法兰边缘。
At present， the major problems in flange connection are the unqualified flange itself and the flange connection is unqualified.
Some of the quality problems of the flange sold in the market are as follows:
① The flange steel is unqualified and the pressure resistance is low. After several months or years of use， water seepage occurs.
② The outer edge of bolt hole of flange is too ***all from the flange edge， less than 5mm. When the bolts are tightened， it is easy to make the flange edge.
根据耐腐蚀性能来参考?
具体来说，PPR管材耐腐蚀与防结垢性能则施工项目管道的基本需求，优良的PPR管材的耐化学腐蚀性能更好，其能够抵抗水中的化学元素的腐蚀，与此同时，其表面则可避免水垢的形成，以此可以促使输送的水更加洁净与卫生。
According to the corrosion resistance
Specifically，Corrosion resistance and anti scaling performance of PPR pipe are the basic requirements of building project pipeline. Excellent PPR pipe has better chemical corrosion resistance，PVC水管代理， which can resist the corrosion of chemical elements in water. At the same time， its surface can ***oid the formation of scale， which can promote the tran***ission of water more clean and sanitary.
PVC水管代理-Gafloon卡弗龙-潜江PVC水管由台州艾菲力塑胶有限公司提供。台州艾菲力塑胶有限公司坚持“以人为本”的企业理念，拥有一支高素质的员工***，力求提供更好的产品和服务回馈社会，并欢迎广大新老客户光临惠顾，真诚合作、共创美好未来。艾菲力塑胶——您可信赖的朋友，公司地址：浙江省台州市三门县西区开发区，联系人：郑总（Rainy）。同时本公司还是从事PPR管，地暖管，PVC管的厂家，欢迎来电咨询。