





Stainless steel threaded couplings serve to connect straight pipe to straight pipe often in low-pressure systems. They are widely used in water, oil, natural gas, air, and other equipment, and are easy to replace and install.
Threaded stainless steel coupling is a connection fitting with female threads. The presence of internal threads makes the process of connecting pipes simple and fast, making it possible to quickly disassemble pipes or their components. Often used to connect other valves or stainless steel pipe fittings with male threads.
Commonly used threaded couplings include NPT or BSP threaded, with PTFE tape used to ensure a tight seal during use. NPT tapered threads ensure a secure and leak-proof connection, making them ideal for a variety of applications in many industries, including piping, chemical processing, oil and gas, and food processing.
Overview
Threaded fittings are used in commercial and industrial environments to transfer water, oil, gas, or air through a non-critical system. They are fast and economical components that are easily added to these systems. In addition, they require no welding so the system can be easily installed and modified.
Overview
Threaded couplings are used in industrial environments to transfer water, oil, gas, or air through non-critical systems. They are quick and economical components that can be easily added to these pipeline systems. Additionally, they require no welding and can be easily installed and removed.
Introduction
|
Item |
Stainless Steel Threaded Couplings |
|
Standard |
ISO, DIN, ASTM, AISI, JIS, BS, NF |
|
Material |
304/304L, 316/316L, etc |
|
Surface |
Galvanized |
|
Type |
Cast |
|
size |
1/8-4” |
|
Delivery time |
Within 5-30 days after receiving the prepaid |
|
Packing |
Paper Box, Wooden Case |
|
Application |
Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc. |

|
Size |
L |
B |
Wt.Ea |
|
1/8 |
1.010 |
0.562 |
0.04 |
|
1/4 |
1.125 |
0.750 |
0.08 |
|
3/8 |
1.188 |
0.875 |
0.10 |
|
1/2 |
1.500 |
1.062 |
0.18 |
|
3/4 |
1.562 |
1.312 |
0.27 |
|
1 |
1.750 |
1.625 |
0.43 |
|
1 1/4 |
2.015 |
1.875 |
0.58 |
|
1 1/2 |
2.135 |
2.188 |
0.70 |
|
2 |
2.515 |
2.750 |
1.31 |
|
2 1/2 |
2.885 |
3.375 |
2.51 |
|
3 |
3.195 |
4.125 |
4.18 |
|
4 |
3.695 |
5.125 |
6.18 |
Xinhang Special Material Co., Ltd. Hangzhou Branch is famous China 304 Stainless Steel Threaded Coupling Class 3000 Forged NPT Threaded Coupling suppliers and OEM/ODM 304 Stainless Steel Threaded Coupling Class 3000 Forged NPT Threaded Coupling manufacturers, founded in 2007 and moved to Longyou Economic Development Zone, Zhejiang Province, in 2022. It covers an area of 130,000 square meters, more than 30 production lines, 300 workers, 20 R&D people, 30 inspection people and an annual output of 50,000 tons.
It has passed ISO9001:2008 quality management system, PED 97/23/EC EU Pressure Equipment Directive certification, China Special Equipment Manufacturing License (Pressure Tube) TS certification, ASME certification, provincial enterprise standardization management system, ISO14000:2004 environment management system, cleaner production (green enterprise), and a series of certifications, as well as China Classification Society (CCS), American Bureau of Shipping (ABS), British Register of Shipping (LR), Deutsche Veritas (GL), Bureau Veritas Society (BV), Det Norske Veritas (DNV), and Korean Register of Shipping (KR) factory certification.
The main products include stainless steel pipes, pipe fittings, flanges, valves, etc., which are widely used in petroleum, chemical industry, nuclear industry, smelting, shipbuilding, pharmaceuticals, food, water conservancy, electric power, new energy, mechanical equipment, and other fields. The company adheres to the corporate tenet of "quality for survival, reputation for development" and wholeheartedly serves every customer to create a win-win situation.


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