IC228 IC50M IC250 IC808 IC908 IC1007 THREADING NPT ER/L-NPTExternal NPT(National Pipe Threads) PDX PDXRE REPDYICPDY Full Profile Laydown INSL INSL Threading Inserts for Steam, IC Gas and Water Pipes External right-hand shown NUT Dimensions Tough 1 Hard 30° 30° 90° 1°47' SCREW Designation IC TPI(3) RE INSL PDY PDX CICT(4) 16ER 27 NPT 9.52 27.0 0.04 16.49 0.7 0.8 1 • • 16ER 18 NPT 9.52 18.0 0.06 16.49 0.8 1.0 1 • • • • 16ERB 18 NPT (1) 9.52 18.0 0.06 16.49 0.9 1.1 1 • 16ERM 18 NPT (1) 9.52 18.0 0.05 16.49 0.8 1.0 1 • • • 16EL 14 NPT 9.52 14.0 0.07 16.49 0.9 1.2 1 • 16ER 14 NPT 9.52 14.0 0.07 16.49 0.9 1.2 1 • • • • 16ERB 14 NPT (1) 9.52 14.0 0.07 16.49 0.9 1.2 1 • 16ERM 14 NPT (1) 9.52 14.0 0.05 16.49 0.9 1.2 1 • • • • • 16EL 11.5 NPT 9.52 11.5 0.09 16.49 1.1 1.5 1 • 16ER 11.5 NPT 9.52 11.5 0.09 16.49 1.1 1.5 1 • • • • 16ERB 11.5 NPT (1) 9.52 11.5 0.09 16.49 1.1 1.5 1 • 16ERM 11.5 NPT (1) 9.52 11.5 0.09 16.49 1.1 1.5 1 • • • • 16ER 8 NPT 9.52 8.0 0.11 16.49 1.4 1.6 1 • • • 16ERB 8 NPT (1) 9.52 8.0 0.11 16.49 1.4 1.7 1 • 16ERM 8 NPT (1) 9.52 8.0 0.12 16.49 1.3 1.8 1 • • • • 22ER 11.5 NPT 2M (2) 12.70 11.5 0.09 22.00 2.3 3.5 2 • 27ER 11.5 NPT 3M (2) 15.88 11.5 0.09 27.50 3.3 5.5 3 • 27ER 8 NPT 2M (2) 15.88 8.0 0.09 27.50 3.3 5.0 2 • • For Insert Identification System, see pages 638-639 • For threading between walls use GRIP-type insert TIP-NPT. • National Pipe Threads ANSI/ASME B1.20.1-1983 • For technical information and detailed cutting data, see pages 711-727 (1) With pressed chipformer (2) Multi-tooth (3) Threads per inch (4) Number of teeth per corner For tools, see pages: C#-SER/L (701) • SER-D (702) • SER/L (700) 669