Hebei Hongcheng Pipe Fittings Co., Ltd.
Become a first-class special steel pipeline equipment manufacturing enterprise at home and abroad
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| DIMENSIONAL TOLERANCES – CAPS | ||||
| For all fittings | Caps | |||
| Nominal Pipe Size (NPS) | Outside Ø at Bevel | Inside Ø at End | Wall Thickness t / t1 | Overall Length E |
| 1/2 a 2 1/2 | 1 | 0,8 | Not | 4 |
| 3 a 3 1/2 | 1 | 1,6 | less | 4 |
| 4 | +2 -1 | 1,6 | than | 4 |
| 5 a 6 | +3 -1 | 1,6 | 87,50% | 7 |
| 8 | 2 | 1,6 | of nominal | 7 |
| 10 | +4 -3 | 3,2 | tickness | 7 |
| 12 a 18 | +4 -3 | 3,2 | 7 | |
| 20 a 24 | +6 -5 | 4,8 | 7 | |
| 26 a 30 | +7 -5 | 4,8 | 10 | |
| 32 a 48 | +7 -5 | 4,8 | 10 | |
CAPS – Weights
| WEIGHTS OF FITTINGS | ||||
| NPS inches | CAPS | |||
| Sch. 5S | Sch. 10S | Sch. 40S | Sch. 80S | |
| 1/2 | 0.04 | 0.04 | 0.05 | 0.05 |
| 3/4 | 0.05 | 0.05 | 0.06 | 0.08 |
| 1 | 0.09 | 0.09 | 0.13 | 0.17 |
| 1 1/4 | 0.11 | 0.11 | 0.15 | 0.18 |
| 1 1/2 | 0.15 | 0.15 | 0.20 | 0.22 |
| 2 | 0.17 | 0.17 | 0.25 | 0.30 |
| 2 1/2 | 0.25 | 0.25 | 0.45 | 0.50 |
| 3 | 0.40 | 0.40 | 0.70 | 0.90 |
| 4 | 0.60 | 0.60 | 1.20 | 1.60 |
| 5 | 1.00 | 1.00 | 1.90 | 2.70 |
| 6 | 1.40 | 1.40 | 2.90 | 4.30 |
| 8 | 2.50 | 2.50 | 5.10 | 7.60 |
| 10 | 3.90 | 3.90 | 9.00 | 12.0 |
| 12 | 6.50 | 6.50 | 13.5 | 17.5 |
| 14 | 8.00 | 8.00 | 16.0 | 20.5 |
| 16 | 14.5 | 14.5 | 20.5 | 26.0 |
| 18 | 17.0 | 17.0 | 26.0 | 34.0 |
| 20 | 18.0 | 18.0 | 32.0 | 43.0 |
| 24 | 26.0 | 26.0 | 46.0 | 60.0 |
| Approximate weights in kg, density 8 kg/dm3 | ||||