2022 PRODUCTS CATALOG - INDUSTRIAL HOSE, COUPLINGS AND EQUIPMENT

PIPE THREAD USAGE (CONTINUED) NOMINAL PIPE SIZE (ln.) PIPE O.D. (ln.) THREADS PER INCH NPT & NPTF NPT NPSM** *EXT. THRD. PITCH (A) DIAMETER *INT. THRD. PITCH (B) DIAMETER EXT. THRD. MAX. MAJOR DIAMETER INT. THRD. MIN. MINOR DIAMETER 1/8 .405 27 0.36351 0.37476 0.409 0.362 1/4 .504 18 0.47739 0.48989 0.541 0.470 3/8 .675 18 0.61201 0.62701 0.678 0.607 1/2 .840 14 0.75843 0.77843 0.844 0.753 3/4 1.050 14 0.96768 0.98887 1.054 0.964 1 1.315 11-1/2 1.21363 1.23863 1.318 1.208 1-1/4 1.660 11-1/2 1.55713 1.58338 1.663 1.553 1-1/2 1.900 11-1/2 1.79609 1.82234 1.902 1.792 2 2.375 11-1/2 2.26902 2.29627 2.376 2.265 2-1/2 2.875 8 2.71593 2.76216 2.877 2.718 3 3.500 8 3.34062 3.38850 3.503 3.344 3-1/2 4.000 8 3.83750 3.88881 4.003 3.845 4 4.500 8 4.33438 4.38712 4.502 4.343 5 5.563 8 5.39073 5.44929 5.564 5.405 6 6.625 8 6.44609 6.50597 6.620 6.462 CHART NO.1 AMERICAN STANDARD PIPE THREADS (ANSI B2.1) CHART NO. 2 AMERICAN STANDARD PIPE THREADS FOR HOSE COUPLINGS AND NIPPLES * Dimensions A & B shown on the sketch above ** Loose Fitting NOMINAL SIZE HOSE I.D. (In.) THREADS PER INCH PITCH DEPTH OF THREAD MAJOR DIAM. MIN. GHT 1/2, 5/8, 3/4 11-1/2 Coupling 0.08696 0.05648 1.0725 1/2, 5/8, 3/4 11-1/2 Nipple 0.08696 0.05648 1.0625 NPSH 1/2 14 0.07143 0.04639 0.8323 3/4 14 0.07143 0.04639 1.0428 1 11-1/2 0.08696 0.05648 1.3051 1-1/4 11-1/2 0.08696 0.05648 1.6499 1-1/2 11-1/2 0.08696 0.05648 1.8888 2 11-1/2 0.08696 0.05648 2.3628 MALE MAJOR DIAM. MAX. 1/2 14 0.07143 0.04639 0.8248 3/4 14 0.07143 0.04639 1.0353 1 11-1/2 0.08696 0.05648 1.2951 1-1/4 11-1/2 0.08696 0.05648 1.6399 1-1/2 11-1/2 0.08696 0.05648 1.8788 2 11-1/2 0.08696 0.05648 2.3528 . COUPLINGS AND FERRULES 194 www.gates.com AGRICULTURE AIR BREATHING AIR DUCT AIR AND MULTI- PURPOSE CHEMICAL FOOD AND BEVERAGE ENGINE AND MARINE MATERIAL HANDLING MINING OILFIELD PETROLEUM PRESSURE WASH AND WASHDOWN STEAM WATER CLAMPS COUPLINGS AND FERRULES HOSE FINDER CHEMICAL RESISTANCE TABLE