DoubleSafe fittings

DoubleSafe fittings provide a leakproof seal and prevent cracking under high torque when installed as the transition between metal piping and the manufacturer’s plastic piping. The fittings are pressure-rated to 150 psi and are available in polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC). This metal-to-plastic joining is useful for connecting a plastic piping system to heat exchangers, flowmeters, and other metal-ended, male-threaded instruments. These joints may also be used to expand old metal systems with plastic and to install plastic systems where metal is required for only part of the configuration. Since plastic pipes often split when metal threads are over-tightened into plastic fittings, each DoubleSafe incorporates a female-threaded metal insert molded at high pressure inside a spigot-end plastic body, which allows the installer to connect the metal system to the metal side and the plastic system to the plastic side.