Pipe Fitting
Your Professional Pipe Fitting Supplier
Octal Pipe is a professional and integrated supplier of oilfield products and industrial steel solutions based in China. With extensive experience in supply, distribution, and manufacturing, we specialize in providing a wide range of steel materials for the oil & gas, energy, and industrial sectors.
Why Choose Us
Superior Quality Assurance
Our steel pipes undergo rigorous testing and adhere to international standards, ensuring unmatched durability, corrosion resistance, and performance in extreme conditions.
Certificates
Every product is backed by full material traceability, mill certificates, and compliance with international standards such as API, ASTM, ASME, EN, and ISO.
Competitive Pricing
We deliver premium-grade steel pipes at reasonable costs, optimizing value through efficient manufacturing and supply chain management without compromising on quality.
Fast & Reliable Delivery
Leveraging efficient sea freight logistics and a global network, we ensure timely ocean shipping of steel pipes, minimizing delays and keeping your industrial operations on schedule.
Threaded Pipe Fittings
A threaded pipe fitting is a type of pipe connector used to join and connect pipes in a plumbing system by means of threads. The ends of pipes or fittings are machined with tools called taps and dies to make screw threads. These threads allow pipes, fittings, and other components to be securely joined together by screwing the external threads into the female threads.
Threaded fittings have either male or female threads. A female thread fitting has the threads internally formed with a threaded tool called a tap. A male thread fitting has the threads externally formed with a threaded tool called a die.
● Male threads are also known as external threads (on the outside).
● Female threads are also called internal threads (on the inside).
● The male or external threads are designed to screw into the female or internal threads for a tight and leak-proof connection. Thread types can be tapered or straight.
● Tapered threads, for example, NPT threads (National Pipe Threads).
● Straight threads, for example, BSPP threads (British Standard Pipe Parallel).
● NPT threads are most common in the USA. Since they are tapered, they provide a more secure and tighter seal as compared to parallel threads.
| Standard | ASME B16.11 (Forged Steel Threaded Fittings) |
| Size Range | ⅛″ – 4″ (special sizes on request) |
| Thread Forms | NPT (ANSI/ASME B1.20.1), BSPP / BSPT |
| Pressure Ratings | 2000#, 3000#, 6000# |
| Materials | Carbon Steel (A105, A350 LF2), Stainless Steel (A182 F304/316/321), Alloy Steel (A182 F11/F22) |
| Types | Threaded Coupling, Close Nipple, Elbow, Tee, Union, Cap, Plug, Threadolet, Grooved & Threaded fittings |
| Inspection | Thread gauge verification, NDT (UT/MT/PT), Hydro test, full MTRs |
Standards and Specifications
● Standard: ASME B16.11 – Forged Steel Fittings, Socket Weld and Threaded
● Thread Standards:
● NPT (National Pipe Thread): per ANSI/ASME B1.20.1 – common in North America
● BSP (British Standard Pipe): BSPP (parallel) and BSPT (tapered) threads – common in Europe and Asia
● Size Range: ⅛″ – 4″ (larger sizes on request)
● Pressure Ratings: 2000#, 3000#, 6000# (depending on size and material)
● Materials:
1.Carbon Steel: ASTM A105, A350 LF2
2.Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321 (stainless steel threaded pipe fittings)
3.Alloy Steel: ASTM A182 F11, F22, F91
Threaded Pipe Fittings Weight Chart
|
Nominal Size |
90 degree elbow |
45elbow |
Tee |
Full coupling |
Half coupling |
Union |
|||||||||
|
DN |
NPS |
2000 |
3000 |
6000 |
2000 |
3000 |
6000 |
2000 |
3000 |
6000 |
3000 |
6000 |
3000 |
6000 |
3000 |
|
6 |
1/8 |
0.08 |
0.1 |
0.18 |
0.0B |
0.08 |
0.14 |
0.13 |
0.22 |
0.35 |
0.06 |
0.09 |
0.03 |
0.25 |
|
|
8 |
1/4 |
0.08 |
0.15 |
0.33 |
0.08 |
0.12 |
0.27 |
0.13 |
0.22 |
0.57 |
0.08 |
0.13 |
0.05 |
0.11 |
0.3 |
|
10 |
3/8 |
0.13 |
0.3 |
0.48 |
0.11 |
0.26 |
0.49 |
0.16 |
0.4 |
0.66 |
0.11 |
0.24 |
0.07 |
0.17 |
0.35 |
|
15 |
1/2 |
0.22 |
0.45 |
0.72 |
0.23 |
0.42 |
0.69 |
0.35 |
0.58 |
1.15 |
0.22 |
0.4 |
0.14 |
0.29 |
0.46 |
|
20 |
3/4 |
0.32 |
0.7 |
1.29 |
0.29 |
0.59 |
1.12 |
0.45 |
0.9 |
1.8 |
0.3 |
0.52 |
0.24 |
0.42 |
0.61 |
|
25 |
1 |
0.5 |
1.21 |
1.65 |
0.43 |
0.96 |
1.47 |
0.66 |
1.46 |
2.25 |
0.55 |
1.06 |
0.41 |
0.76 |
0.85 |
|
32 |
11/4 |
0.8 |
1.47 |
2.7 |
0.67 |
1.15 |
2.65 |
1 |
1.9 |
3.95 |
0.86 |
1.32 |
0.71 |
0.96 |
1.35 |
|
40 |
1.5 |
0.93 |
2.6 |
3.9 |
0.82 |
2.02 |
3.6 |
1.4 |
3.4 |
4.87 |
1.26 |
2.2 |
0.88 |
1.42 |
1.92 |
|
50 |
2 |
1.6 |
3.05 |
6.05 |
1.32 |
2.5 |
4.6 |
2.2 |
3.8 |
8.89 |
1.65 |
3.37 |
1.25 |
2.24 |
2.85 |
|
65 |
2.5 |
2.95 |
5.8 |
9.88 |
3.3 |
3.81 |
7.81 |
4.2 |
7.2 |
128 |
3 |
4.81 |
2.29 |
3.8 |
4.9 |
|
80 |
3 |
5.6 |
8.85 |
16.4 |
5.4 |
6.3 |
13.1 |
6.15 |
10.7 |
21.6 |
4.25 |
7.25 |
3.29 |
5.43 |
7.1 |
|
100 |
4 |
10.5 |
14.9 |
23.5 |
9 |
9.8 |
17 |
14.7 |
179 |
29.5 |
78 |
12 |
565 |
9.26 |
|
Advantages of Threaded Pipe Fittings
Ease of Installation
Threaded pipe fittings can be easily installed and disassembled, making them ideal for systems that may require frequent maintenance or modifications.
01
Leak-Proof Connection
Properly threaded pipe fittings create a tight seal, ensuring that no leaks occur when the system is pressurized.
02
Cost-Effective
Threaded fittings are relatively inexpensive compared to other types of fittings, making them an economical solution for many piping systems.
03
Wide Range of Materials
Threaded pipe fittings are available in a variety of materials, making them suitable for a wide range of applications from residential plumbing to high-pressure industrial systems.
04
Durability
When made from materials like stainless steel or alloy steel, threaded fittings are highly durable and resistant to corrosion, extreme temperatures, and high pressures.
05
Types of Threaded Fittings by Class and Size
|
Description |
Class Designation |
||
|
2000 |
3000 |
6000 |
|
|
Elbows 45 and 90 degrees |
1/2 - 4 |
1/2 - 2 |
1/2 - 2 |
|
1/2 - 4 |
1/2 - 2 |
1/2 - 2 |
|
|
1/2 - 4 |
1/2 - 2 |
1/2 - 2 |
|
|
Pipe Wall |
SCH 80 / XS |
SCH 160 |
XXS |
There exists a wide array of threaded pipe fittings, each designed for specific purposes. Common types include:
Threaded Elbows
These fittings facilitate changes in direction, crucial for navigating complex piping systems.
Threaded Couplings
Couplings are used to connect two pipes of the same diameter, ensuring a tight and leak-free joint.
Threaded Tees
Tees allow the connection of three pipes, forming a 'T' shape junction.
Threaded Crosses
Similar to tees, crosses allow the connection of four pipes, forming a cross-shaped junction.
Threaded Caps
Caps are used to close the end of a pipe, providing protection and preventing unwanted debris or substances from entering the pipe.
Threaded Unions
Unions are fittings that allow for the easy disconnection of pipes for maintenance or repairs.
Threaded Bushings
Bushings are used to connect pipes of different sizes.
Applications of Threaded Pipe Fittings
Threaded pipe fittings find applications in various industries, including:
Construction
Threaded fittings are extensively used in construction for plumbing systems, ensuring a secure and reliable connection of pipes.
01
Oil and Gas Industry
In the oil and gas sector, where precision and durability are paramount, threaded fittings are used for their reliability and ease of installation.
02
Manufacturing
Threaded fittings play a crucial role in manufacturing processes, facilitating the seamless flow of liquids or gases.
03
Chemical Industry
In industries dealing with corrosive substances, the corrosion-resistant nature of materials used in threaded fittings makes them indispensable.
04
Company Honor
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