PVC with Joint Restraint
Manufacturing: The Bulldog™ restraint system is installed during the PVC pipe belling process, along with the Rieber C-900 gasket.
No Point Loading: In non-serrated type restraint systems, the manual tightening of restraining wedges into the walls of PVC pipes commonly causes point-loading on the pipe wall, jeopardizing the pipe’s hydrostatic strength. This leads to potential problems in the long-term operation of the pipeline. The BullDog™ doesn’t rely on point loading.
Easy Assembly: Assembly of the BullDog™ joint is similar to the joining of the traditional Rieber-gasket PVC pipe joint. There are no tools, external rods, clamps or bolts needed! The restraint mechanism is activated by simply pushing the spigot into the bell of the adjoining pipe equipped with the BullDog™ and then pulling it to set the joint.
Less Potential for Human Error: The easy assembly method also lessens the opportunities of human errors involved in the installation of external joint restraint devices. There are no nuts and bolts to tighten and there are no correct torques to worry about.
No Corrosion: The minimal exposure of the BullDog™ joint restraint to the elements makes it significantly less prone to corrosion than external joint restraint devices. There are no rods and harnesses to corrode! The gripper ring and the ring casing are coated with a patented coating system.
Meeting the Highest ASTM Standard: The BullDog™ is designed and has been tested to meet or exceed the requirements of ASTM F 1674, Standard Test Method for Joint Restraint Products for Use With PVC Pipe.