Profile: Astral Polytechnik Pvt. Ltd. is a manufacturer of CPVC plumbing systems for industrial applications, and weld lead free PVC plumbing systems. Our BlazeMaster® pipe and fittings are designed specifically for fire sprinkler systems. They are made from a specialty thermoplastic known chemically as chlorinated poly vinyl chloride (CPVC). Our pipe and fittings provide increased hanger spacing in comparison to other thermoplastics. Our grooved ring type fittings are self socketed with groove to hold the rubber ring. The grooves are made using on-line socketing machines. Pasting type fittings are self socketed on automatic machines. These fittings are to be joined with solvent cement.