PVC unions and PVC pipe union connectors are pipe fittings designed to connect two pipes together without the use of a sealant or traditional glued coupling. The advantage of using PVC pipe unions is that the pipes that are connected using PVC pipe unions can be taken apart and put back together again without the use of specialized tools.
Zhejiang HONGKE valve co.,ltd is one of the top manufactures for pvc valve and fittings.