BigPatents India

Stainless Steel Reinforced Fitting for Plastic Fitting has tapered threaded body which is used to reduce problem relates to over tightening of female plastic pipe threads. Stainless steel ring give more expansion forces from tapered pipe thread Joint. The major advancement in preventing cross threading of plastic fitting. In case of CPVC and PVC, steel ring will not allowing the plastic to change its shape due to thermal expansion. Further three legs are provided with this stainless steel ring, which are molded at the time when the steel ring is fitted over the plastic pipes. In a preferred version of this embodiment, the starter threads comprise a first group of contiguous starter threads and second group of contiguous starter threads. In bore threads and the first group of starter threads are tapered at a first angle, while the second group of contiguous starter threads is tapered at a second angle with which is grater than the first angle.