Ipex 035184 1.5" SCH80 PVC Conduit Pipe Clamps. Xirtec 140 PVC Pipe Clamps are engineered to support pipe away from the mounting surface making it ideal for use in wash-down areas and corrosive and/or wet location environments. They are able accommodate proper expansion and contraction of pipe and prevent unwanted clamp opening. Providing contractors with installation flexibility, strength and lasting reliability.