PV-LOK™ SERIES PVP

The PVP model is an external device for bell and spigot joints of a PVP pipe. This consists of two serrated clamping rings that are installed on the spigot side and behind the gasketed bell and connected with high strength low alloy corrosion resistant threaded rods. The PVP model may also be used on DI pipe upto 16” size (please see catalog for pressure range)

PV-LOK restrainers are manufactured with an extended fitting rib along the outside surface of the clamping ring. This prevents the bolt head from rotating and allows the installer to secure the restrainer on the pipe with only one wrench. The anti-rotation feature makes installation of the PV-LOK faster and easier, especially on installations where access space is limited. The structural ribbing also increases the strength and performance of PV-LOK restrainers.

PV-LOK restrainers provide installation indicators that are cast on the clamping ring to simplify assembly and assure proper orientation of the directional serration-lock surface. We incorporate a "tab" on each restraining ear that faces the watermain fitting or additional clamping ring on pipe bell connections. In addition, we providecast lettering on the opposite side of the ear -"NUT SIDE" - indicating the location of the restraining nut. All PV-LOK restrainers contain installation instructions which explain these features.

PV-LOK restrainers incorporate a series of machined (not as cast) interrupted serrations that effectively engage PVC pipe walls, to provide positive joint security and full support of the pipe. The directional gripping action maximizes restraint during increased line pressures such as those resulting from surges and water hammers.