bids are invited for procurement of seat ring, 1. 4 inch c&i tyco valve ptfe seat ring the details of ptfe insert 2. disc insert of ptfe for klein valve.nb-300, pt no: 502 of klein drg no:6.28136.0 rev 0. the detais of ptfe insert 3. ptfe insert for 14 inch fv2 valve ptfe insert of klein item no: 500 klein drg no: 6426880 4. ptfe seat ring for 16 inch tank bottom valve as per the enclosed drawing 5. ptfe-seat ring fv2 14 intervalve the detais of ptfe insert are as per the enclosed drawing 6. seat ring for 4 inch klein valve seat ring for 4 inch klein tank bottom valve with stellite coating as per the attached drawing note : party to send one sample item for quality check and acceptance by nalco before bulk supply. 7. ss seat ring for 4 inch tyco vlv , seat ring for 4-inch size tankbottom valve as per the attached drawing. note : party to send one sample item for quality check and acceptance by nalco before bulk supply. 8. seat ring for 12fv2 klein valve 9. ss seat ring for 14 inch tank bottom valve 10. ss seat ring for 16 inch tank bottom valve total quantity : 140