View dimensions in millimeters
| NPS1 | NPS2 | OD1 | OD2 | H |
| 3/4 | 1/2 | 1.05 | 0.84 | 1.50 |
| 3/4 | 3/8 | 1.05 | 0.68 | 1.50 |
| 1 | 3/4 | 1.32 | 1.05 | 2.00 |
| 1 | 1/2 | 1.32 | 0.84 | 2.00 |
| 1-1/4 | 1 | 1.66 | 1.32 | 2.00 |
| 1-1/4 | 3/4 | 1.66 | 1.05 | 2.00 |
| 1-1/4 | 1/2 | 1.66 | 0.84 | 2.00 |
| 1-1/2 | 1-1/4 | 1.90 | 1.66 | 2.50 |
| 1-1/2 | 1 | 1.90 | 1.32 | 2.50 |
| 1-1/2 | 3/4 | 1.90 | 1.05 | 2.50 |
| 1-1/2 | 1/2 | 1.90 | 0.84 | 2.50 |
| 2 | 1-1/2 | 2.38 | 1.90 | 3.00 |
| 2 | 1-1/4 | 2.38 | 1.66 | 3.00 |
| 2 | 1 | 2.38 | 1.32 | 3.00 |
| 2 | 3/4 | 2.38 | 1.05 | 3.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
| 2-1/2 | 2 | 2.88 | 2.38 | 3.50 |
| 2-1/2 | 1-1/2 | 2.88 | 1.90 | 3.50 |
| 2-1/2 | 1-1/4 | 2.88 | 1.66 | 3.50 |
| 2-1/2 | 1 | 2.88 | 1.32 | 3.50 |
| 3 | 2-1/2 | 3.50 | 2.88 | 3.50 |
| 3 | 2 | 3.50 | 2.38 | 3.50 |
| 3 | 1-1/2 | 3.50 | 1.90 | 3.50 |
| 3 | 1-1/4 | 3.50 | 1.66 | 3.50 |
| 3-1/2 | 3 | 4.00 | 3.50 | 4.00 |
| 3-1/2 | 2-1/2 | 4.00 | 2.88 | 4.00 |
| 3-1/2 | 2 | 4.00 | 2.38 | 4.00 |
| 3-1/2 | 1-1/2 | 4.00 | 1.90 | 4.00 |
| 3-1/2 | 1-1/4 | 4.00 | 1.66 | 4.00 |
| 4 | 3-1/2 | 4.50 | 4.00 | 4.00 |
| 4 | 3 | 4.50 | 3.50 | 4.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
| 4 | 2-1/2 | 4.50 | 2.88 | 4.00 |
| 4 | 2 | 4.50 | 2.38 | 4.00 |
| 4 | 1-1/2 | 4.50 | 1.90 | 4.00 |
| 5 | 4 | 5.56 | 4.50 | 5.00 |
| 5 | 3-1/2 | 5.56 | 4.00 | 5.00 |
| 5 | 3 | 5.56 | 3.50 | 5.00 |
| 5 | 2-1/2 | 5.56 | 2.88 | 5.00 |
| 5 | 2 | 5.56 | 2.38 | 5.00 |
| 6 | 5 | 6.62 | 5.56 | 5.50 |
| 6 | 4 | 6.62 | 4.50 | 5.50 |
| 6 | 3-1/2 | 6.62 | 4.00 | 5.50 |
| 6 | 3 | 6.62 | 3.50 | 5.50 |
| 6 | 2-1/2 | 6.62 | 2.88 | 5.50 |
| 8 | 6 | 8.62 | 6.62 | 6.00 |
| 8 | 5 | 8.62 | 5.56 | 6.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
| 8 | 4 | 8.62 | 4.50 | 6.00 |
| 8 | 3-1/2 | 8.62 | 4.00 | 6.00 |
| 10 | 8 | 10.75 | 8.62 | 7.00 |
| 10 | 6 | 10.75 | 6.62 | 7.00 |
| 10 | 5 | 10.75 | 5.56 | 7.00 |
| 10 | 4 | 10.75 | 4.50 | 7.00 |
| 12 | 10 | 12.75 | 10.75 | 8.00 |
| 12 | 8 | 12.75 | 8.62 | 8.00 |
| 12 | 6 | 12.75 | 6.62 | 8.00 |
| 12 | 5 | 12.75 | 5.56 | 8.00 |
| 14 | 12 | 14.00 | 12.75 | 13.00 |
| 14 | 10 | 14.00 | 10.75 | 13.00 |
| 14 | 8 | 14.00 | 8.62 | 13.00 |
| 14 | 6 | 14.00 | 6.62 | 13.00 |
| 16 | 14 | 16.00 | 14.00 | 14.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
| 16 | 12 | 16.00 | 12.75 | 14.00 |
| 16 | 10 | 16.00 | 10.75 | 14.00 |
| 16 | 8 | 16.00 | 8.62 | 14.00 |
| 18 | 16 | 18.00 | 16.00 | 15.00 |
| 18 | 14 | 18.00 | 14.00 | 15.00 |
| 18 | 12 | 18.00 | 12.75 | 15.00 |
| 18 | 10 | 18.00 | 10.75 | 15.00 |
| 20 | 18 | 20.00 | 18.00 | 20.00 |
| 20 | 16 | 20.00 | 16.00 | 20.00 |
| 20 | 14 | 20.00 | 14.00 | 20.00 |
| 20 | 12 | 20.00 | 12.75 | 20.00 |
| 22 | 20 | 22.00 | 20.00 | 20.00 |
| 22 | 18 | 22.00 | 18.00 | 20.00 |
| 22 | 16 | 22.00 | 16.00 | 20.00 |
| 22 | 14 | 22.00 | 14.00 | 20.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
| 24 | 22 | 24.00 | 22.00 | 20.00 |
| 24 | 20 | 24.00 | 20.00 | 20.00 |
| 24 | 18 | 24.00 | 18.00 | 20.00 |
| 24 | 16 | 24.00 | 16.00 | 20.00 |
| 26 | 24 | 26.00 | 24.00 | 24.00 |
| 26 | 22 | 26.00 | 22.00 | 24.00 |
| 26 | 20 | 26.00 | 20.00 | 24.00 |
| 26 | 18 | 26.00 | 18.00 | 24.00 |
| 28 | 26 | 28.00 | 26.00 | 24.00 |
| 28 | 24 | 28.00 | 24.00 | 24.00 |
| 28 | 20 | 28.00 | 20.00 | 24.00 |
| 28 | 18 | 28.00 | 18.00 | 24.00 |
| 30 | 28 | 30.00 | 28.00 | 24.00 |
| 30 | 26 | 30.00 | 26.00 | 24.00 |
| 30 | 24 | 30.00 | 24.00 | 24.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
| 30 | 20 | 30.00 | 20.00 | 24.00 |
| 32 | 30 | 32.00 | 30.00 | 24.00 |
| 32 | 28 | 32.00 | 28.00 | 24.00 |
| 32 | 26 | 32.00 | 26.00 | 24.00 |
| 32 | 24 | 32.00 | 24.00 | 24.00 |
| 34 | 32 | 34.00 | 32.00 | 24.00 |
| 34 | 30 | 34.00 | 30.00 | 24.00 |
| 34 | 26 | 34.00 | 26.00 | 24.00 |
| 34 | 24 | 34.00 | 24.00 | 24.00 |
| 36 | 34 | 36.00 | 34.00 | 24.00 |
| 36 | 32 | 36.00 | 32.00 | 24.00 |
| 36 | 30 | 36.00 | 30.00 | 24.00 |
| 36 | 26 | 36.00 | 26.00 | 24.00 |
| 36 | 24 | 36.00 | 24.00 | 24.00 |
| 38 | 36 | 38.00 | 36.00 | 24.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
| 38 | 34 | 38.00 | 34.00 | 24.00 |
| 38 | 32 | 38.00 | 32.00 | 24.00 |
| 38 | 30 | 38.00 | 30.00 | 24.00 |
| 38 | 28 | 38.00 | 28.00 | 24.00 |
| 38 | 26 | 38.00 | 26.00 | 24.00 |
| 40 | 38 | 40.00 | 38.00 | 24.00 |
| 40 | 36 | 40.00 | 36.00 | 24.00 |
| 40 | 34 | 40.00 | 34.00 | 24.00 |
| 40 | 32 | 40.00 | 32.00 | 24.00 |
| 40 | 30 | 40.00 | 30.00 | 24.00 |
| 42 | 40 | 42.00 | 40.00 | 24.00 |
| 42 | 38 | 42.00 | 38.00 | 24.00 |
| 42 | 36 | 42.00 | 36.00 | 24.00 |
| 42 | 34 | 42.00 | 34.00 | 24.00 |
| 42 | 32 | 42.00 | 32.00 | 24.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
| 42 | 30 | 42.00 | 30.00 | 24.00 |
| 44 | 42 | 44.00 | 42.00 | 24.00 |
| 44 | 40 | 44.00 | 40.00 | 24.00 |
| 44 | 38 | 44.00 | 38.00 | 24.00 |
| 44 | 36 | 44.00 | 36.00 | 24.00 |
| 46 | 44 | 46.00 | 44.00 | 28.00 |
| 46 | 42 | 46.00 | 42.00 | 28.00 |
| 46 | 40 | 46.00 | 40.00 | 28.00 |
| 46 | 38 | 46.00 | 38.00 | 28.00 |
| 48 | 46 | 48.00 | 46.00 | 28.00 |
| 48 | 44 | 48.00 | 44.00 | 28.00 |
| 48 | 42 | 48.00 | 42.00 | 28.00 |
| 48 | 40 | 48.00 | 40.00 | 28.00 |
| NPS1 | NPS2 | OD1 | OD2 | H |
GENERAL NOTES:
(a) All dimensions are in inches.
(b) While the figure illustrates a bell-shaped reducer, the use of a conical reducer is not prohibited.
