Zizi Engineering always provides attractive price and supply good quality of NPT Threaded Elbow for regular customer. For example, size : 1-1/4 inch ; pressure : 3000 LB ; material : ASTM A105 ; standard : ASME B16.11.
We manufactured, tested and certified carbon steel NPT threaded elbow in accordance with ASTM A105N Normalized.These regular customer has maintained long-term cooperation with our company. They often purchase threaded pipe fittings from our company.
What is NPT Threaded Elbow
NPT threaded elbow dimensions and weight are according to ASME B16.11 standard. The types of female/female & male / female elbow, 90 and 45 degree elbow. Their size are from 1/8″ to 4″ and pressure range includes Class 2000, 3000 and 6000.
NPT threaded elbow is actually a fitting that is being installed in between the two lengths of tube or a pipe to allow in changing the direction of a flow.
NPT vs NPS Threads
NPT is NATIONAL PIPE TAPER (AMERICAN) – Thread form per ANSI/ASME B1.20.1
NPS is NATIONAL PIPE STRAIGHT (PARALLEL) – Thread form per ANSI/ASME B1.20.1
NPTF is NATIONAL PIPE TAPER FOR FUEL – Thread form per SAE J476
NPSM is NATIONAL PIPE STRAIGHT MECHANICAL – Thread form per ANSI/ASME B1.20.1
Inspection of NPT Threaded Elbow
Visual the surface of NPT threaded elbow body.
Check the marking “NPT 1-1/4” 3000# A105 B16.11 231″
Measure dimensions. Such as outside diameter, inside diameter , wall thickness, length of thread.
Test thread of NPT threaded elbow with Go-No Go Gauge.
ASME B16.11 Forged Pipe Fittings
The B16.11 standard covers pressure-temperature ratings, dimensions,marking, tolerances and material requirements. We are specialized in supplying forged NPT threaded elbow in three pressure ratings: class 2000,Class 3000 and 6000 at reasonable price in various sizes as per requirement.
Supply Range of Threaded Pipe Fittings
Size: 1/8″ to 4″ / DN 6 to 100
Pressure: Class 2000, 3000, 6000
Thread Type: BSPP, BSPT, PT, NPT, MPT
Product: NPT Threaded Elbow, Tee, Coupling, Union, Bushing, Nipple, Plug.
Material & Grades
Stainless Steel Threaded Elbow
ASTM A182 F304/304L/304H, F316/316L, F310, F317, F321, F309, F347, F904L
Carbon Steel Threaded Elbow
ASTM A105, A694 F52, F60, F65, F70, A350 LF2, LF3
Duplex Steel Threaded Pipe Elbow
ASTM A182 F51, F53, F55, S 31803, 32205, 32550, 32750, 32760
ASME B16.11 NPT Threaded Elbow Dimension
| Nominal Size | Center-to-End | Outside Diameter of Band | Wall Thickness | Length of Thread | |||||||
| DN | NPS | A | H | Gmin | L 5 min | L 2 min | |||||
| 90°Elbows | 45°Elbows | ||||||||||
| 3000 | 6000 | 3000 | 6000 | 3000 | 6000 | 3000 | 6000 | ||||
| 6 | 1/8 | 21 | 25 | 17 | 19 | 22 | 25 | 3.18 | 6.35 | 6.4 | 6.7 |
| 8 | 1/4 | 25 | 28 | 19 | 22 | 25 | 33 | 3.30 | 6.60 | 8.1 | 10.2 |
| 10 | 3/8 | 28 | 33 | 22 | 25 | 33 | 38 | 3.51 | 6.98 | 9.1 | 10.4 |
| 15 | 1/2 | 33 | 39 | 25 | 28 | 38 | 46 | 4.09 | 8.15 | 10.9 | 13.6 |
| 20 | 3/4 | 38 | 44 | 28 | 33 | 46 | 56 | 4.32 | 8.53 | 12.7 | 13.9 |
| 25 | 1 | 44 | 51 | 33 | 35 | 56 | 62 | 4.98 | 9.93 | 14.7 | 17.3 |
| 32 | 11/4 | 51 | 60 | 35 | 43 | 62 | 75 | 5.28 | 10.59 | 17.0 | 18.0 |
| 40 | 11/2 | 60 | 64 | 43 | 44 | 75 | 84 | 5.56 | 11.07 | 17.8 | 18.4 |
| 50 | 2 | 64 | 83 | 44 | 52 | 84 | 102 | 7.14 | 12.09 | 19 | 19.2 |
| 65 | 21/2 | 83 | 95 | 52 | 64 | 102 | 121 | 7.65 | 15.29 | 23.6 | 28.9 |
| 80 | 3 | 95 | 106 | 64 | 79 | 121 | 146 | 8.84 | 16.64 | 25.9 | 30.5 |
| 100 | 4 | 114 | 114 | 79 | 79 | 152 | 152 | 11.18 | 18.67 | 27.7 | 33 |
Forged Threaded Elbow Weight Chart in KG
| NOMINAL SIZE | 90 DEGREE THREADED ELBOW | 45 DEGREE THREADED ELBOW | |||||
| DN | NPS | 2000 | 3000 | 6000 | 2000 | 3000 | 6000 |
| 6 | 1/8 | 0.08 | 0.10 | 0.18 | 0.08 | 0.08 | 0.14 |
| 8 | 1/4 | 0.08 | 0.15 | 0.33 | 0.08 | 0.12 | 0.27 |
| 10 | 3/8 | 0.13 | 0.30 | 0.48 | 0.11 | 0.26 | 0.49 |
| 15 | 1/2 | 0.22 | 0.45 | 0.72 | 0.23 | 0.42 | 0.69 |
| 20 | 3/4 | 0.32 | 0.70 | 1.29 | 0.29 | 0.59 | 1.12 |
| 25 | 1 | 0.50 | 1.21 | 1.65 | 0.43 | 0.96 | 1.47 |
| 32 | 1-1/4 | 0.80 | 1.47 | 2.70 | 0.67 | 1.15 | 2.65 |
| 40 | 1-1/2 | 0.93 | 2.60 | 3.90 | 0.82 | 2.02 | 3.60 |
| 50 | 2 | 1.60 | 3.05 | 6.05 | 1.32 | 2.50 | 4.60 |
| 65 | 2-1/2 | 2.95 | 5.80 | 9.88 | 3.30 | 3.81 | 7.81 |
| 80 | 3 | 5.6 | 8.85 | 16.4 | 5.4 | 6.3 | 13.1 |
| 100 | 4 | 10.5 | 14.9 | 23.5 | 9.00 | 9.80 | 17.0 |