■ Application of Parallel Pipe / Tapered Pipe Thread ● Parallel Pipe : G(PF), Rp(PS) ● Tapered Pipe : R, Rc(PT)(BSPT) Nominal Thread Internal Thread (G,Rp) Same Root’s Nominal Thread Internal Thread (Rc) Same Root’s Symbol TPI Insert Bore Radius Symbol TPI Insert Bore Radius (Previous Symbol) Dia. (Previous Symbol) Dia. G¹⁄16 EZTR 060050-55-008 6.56 R¹⁄16,Rc¹⁄16 EZTR 060050-55-008 - (-) 28 0.12 (-) 28 0.12 G¹⁄8 080070-55-008 8.57 R¹⁄8,Rc¹⁄8 080070-55-008 - (PF¹⁄8) (PT¹⁄8) G1/4 11.45 R1/4,Rc1/4 - (PF1/4) 19 EZTR 080070-55-008 0.18 (PT1/4) 19 EZTR 080070-55-008 0.18 G³⁄8 14.95 R³⁄8,Rc³⁄8 - (PF³⁄8) (PT³⁄8) · When using “EZT type” for Parallel Pipe / Tapered Pipe threading, thread’s corners become sharp edged due to its partial profile, and the shape will not be the same as the standard shape for Parallel Pipe / Tapered Pipe. ◆ Depth of Cut & Number of Passes (Parallel Pipe / Tapered Pipe) TPI Total ap No. of 1Pass 2Pass 3Pass 4Pass 5Pass 6Pass 7Pass 8Pass 9Pass 10Pass 11Pass 12Pass13Pass14Pass15Pass16Pass17Pass18Pass (mm) Passes 28 0.61 12 0.07 0.07 0.06 0.06 0.06 0.05 0.05 0.05 0.04 0.04 0.03 0.03 19 0.95 18 0.07 0.07 0.07 0.07 0.06 0.06 0.06 0.06 0.06 0.05 0.05 0.05 0.04 0.04 0.04 0.04 0.03 0.03 ■ Application of American National Tapered Pipe Thread (NPT) Internal Thread Nominal Thread TPI Toolholder Insert J Partial Profile Full Profile ¹⁄16 NPT 27 No Tools Available ¹⁄8 NPT 1/4 NPT 18 EZH sleeve EZTR060050-60-004 - ³⁄8 NPT EZTR070060-60-004 1/2 NPT 14 EZH sleeve EZTR070060-60-004 - Threading 3/4 NPT 1/2 NPT 14 SINR1616S-16 - 16IR14NPT 3/4 NPT SINR2016S-16 • Application of NPTF Thread NPTF is the thread for sealing pipes without using any sealing material. Thread symbol is similar to NPT but the Tolerance is different from that of NPT, therefore the above Inserts are not available for NPTF. ◆ Depth of Cut & Number of Passes (American National Tapered Pipe) TPI Total ap No. of 1Pass 2Pass 3Pass 4Pass 5Pass 6Pass 7Pass 8Pass 9Pass 10Pass 11Pass12Pass13Pass14Pass15Pass16Pass17Pass18Pass 19Pass (mm) Passes 18 1.23 16 0.18 0.14 0.12 0.12 0.10 0.09 0.08 0.08 0.07 0.06 0.05 0.04 0.03 0.03 0.02 0.02 14 1.56 19 0.18 0.16 0.14 0.14 0.12 0.10 0.09 0.09 0.08 0.07 0.07 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02 J27