Types and functions of PVC Compression Coupling
Types and functions of PVC Compression Coupling There are four types of Compression Coupling in PVC drainage pipe fittings: (1) When the story height is less than or equal to 4m, the riser shall be provided with a Compression Coupling for each floor; when the story height is greater than 4m, it shall be determined according to the design expansion. (2) The Compression Coupling of the horizontal trunk pipes shall be determined according to the design expansion and contraction amount. (3) When the [...]