1. FABRICATED PIPING SPOOLS SHALL BE INTERNALLY COATED WITH LIQUID EPOXY OF MINIMUM THICKNESS OF 300 MICRON AS PER KOC STANDARD KOC-P-005. FURTHER THE FIELD FIT-UPS AFTER WELDING AND PAINTING, SURFACE PREPARATION, AN APPROVED LIQUID EPOXY LINING MAY BE APPLIED TO THE INSIDE SURFACE AND/OR WETTED FACE OF FLANGES, PIPES OR FITTINGS.
2. GASKETS MAY NOT BE REQUIRED WITH LINED BUTTERFLY VALVES.
3. BLIND & SPACER ABOVE 24‟‟, VENDOR SHALL SUBMIT DRAWING FOR APPROVAL.
4. 90-10 CU-NI PIPING SHOULD GENERALLY BE LIMITED TO NPS 2‟‟, HOWEVER NPS 3‟‟ IS INCLUDED TO MAKE BRANCH CONNECTIONS.
5. ALL EPOXY LINED PIPING SPOOLS SHALL BE HYDROSTATICALLY TESTED BEFORE APPLICATION OF LININGS.
6. WHERE 90-10 CU-NI PIPING IS SPECIFIED, THE MAXIMUM VELOCITY OF THE LINE FLUID SHALL NOT EXCEED 3 METERS/SEC FOR CONTINUOUS OPERATION.
7. GASKETS AND FLANGES ARE TO BE USED ONLY FOR MATCHING HIGHER RATING FLANGES.
8. SPECTACLE BLINDS SHALL BE USED TO A MAXIMUM WEIGHT OF 50 KG. USE BLIND AND SPACER OVER THIS WEIGHT. 9. REDUCING FLANGES SHALL BE USED TO CONNECT 3” BRANCH CONNECTION (LINED LANGE) WITH SMALL BORE METALLIC FLANGES