Your Professional Threaded Coupling Supplier
With years of experience in Pipe Nipples wholesale and production, Cangzhou Zexi Pipe Fittings Co.,Ltd has formed its own advantages among all the Pipe Nipples manufacturers. we Cangzhou Zexi Pipe Fittings Co.,Ltd. is located in Cangzhou City, Hebei Province, China.
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Coupling NPTA coupling npt is a device used to connect two shafts together at their ends for the purpose of transmitting power. The primary purpose of couplings is to join two pieces of rotating equipment while
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Threaded Shaft CouplingThe threaded shaft coupling is a relatively simple rigid coupling that uses threaded connection to achieve the connection and torque transmission between two shafts. It is usually composed of two
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Full Coupling NPTThe full coupling npt connects pipes of the same diameter and the same material to form a continuous pipeline. It's composed of a cylindrical piece that fits over or screws into the ends of the pipe,
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ASTM A182 F316 Threaded CouplingASTM A182 F316 Threaded Coupling is a 316 stainless steel female threaded pipe fitting.
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ASTM A182 F304 Threaded CouplingASTM A182 F304 Threaded Coupling is a 304 stainless forged fitting with internal pipe threads.
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ASTM A105 Threaded CouplingASTM A105 Threaded Coupling is a carbon steel forged fitting with female pipe threads.
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Forged Threaded CouplingForged Threaded Coupling is an ASME B16.11 style pipe fitting with internal thread openings.
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Heavy Duty Threaded CouplingHeavy Duty Threaded Coupling is a forged female threaded fitting for pipe runs that need a firm compact joint.
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Industrial Threaded CouplingIndustrial Threaded Coupling is a short female threaded connector for detachable pipe sections.
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Stainless Steel Threaded CouplingStainless Steel Threaded Coupling is a female threaded fitting made from ASTM A182 F304/L or F316/L stainless steel.
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Carbon Steel Threaded CouplingCarbon Steel Threaded Coupling is an ASTM A105 female threaded pipe fitting in the ASME B16.11 size range.
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Galvanized Threaded CouplingA Galvanized Threaded Coupling is made from steel with a zinc-coated surface for threaded pipe joints.It is used when fittings need cleaner storage, easier handling, and better rust control than
Why Choose Us
Custom-Made Products
Our company can also manufacture other steel pipe products according to customers' drawings, samples, or specific requirements.
Quality Management System
Our products comply with American Standard ASTM A733/A865, German Standard DIN 2982/DIN 2986, British Standard BS EN 10241, and Russian Standard ISO 228-1. We also implement a strict quality management system in accordance with ISO 9001:2015 requirements.
Our Service
Products can be customized to meet customer needs before the sale and are manufactured strictly according to the drawings during production. After shipment, we provide a one-year quality guarantee to ensure customer satisfaction and peace of mind.
Production Market
Our products are exported to more than 60 countries worldwide, including regions such as North America, South America, Central Asia, Europe, and others.
Advantages of Threaded Coupling

Reliability
Threaded couplings create a secure and leak-proof connection, which is vital in applications involving fluids and gases.

Versatility:
Threaded couplings come in a variety of types and sizes, making them suitable for a wide range of applications.

Ease of Installation:
They are relatively simple to install and require minimal tools, reducing downtime during maintenance and repairs.

Durable:
High-quality threaded couplings are made from robust materials, ensuring longevity and resistance to wear and tear.
Threaded Coupling Types
Threaded Elbows
Elbows are used to change the direction of the pipe flow, either at a 45-degree or 90-degree angle. These fittings are ideal for systems requiring sharp turns or adjustments in tight spaces.
Threaded Tees
Threaded tees allow for branch connections in a piping system. They have one inlet and two outlets (or vice versa), which makes them suitable for splitting or combining the flow of liquids or gases.
Threaded Couplings
Couplings are straight fittings designed to connect two pipes of the same diameter. They are simple & effective in extending the length of a piping system.
Threaded Reducers
Reducers are used to connect pipes of different diameters. They are a must when the system flow transitions between pipes of varying sizes, ensuring smooth performance.
Threaded Caps and Plugs
Caps & plugs act as end seals for a pipe or fitting. Caps fit over the end of the pipe, while plugs are screwed into an open fitting to stop the flow.
Threaded Cross Fittings
Cross fittings have four threaded openings and are typically used in systems where fluid division is necessary. They are ideal for creating fluid or gas flow intersections.
Threaded Unions
Unions are a special type of coupling that allows for easy disconnection of pipes or fittings. They are used in systems where frequent maintenance or replacement is required.
Threaded Adapters
Adapters are versatile fittings used to connect different types of pipes or fittings, such as transitioning from threaded connections to other joining methods.
Specification
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Threaded Coupling Dimensions |
ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799 |
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Threaded Coupling Size |
1/8″ NB TO 4″ NB |
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Threaded Coupling Type |
Threaded (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT |
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Threaded Coupling Production Grades |
Stainless Steel, Alloy Steel, Duplex, Nickel Alloys, Low temperature Steel, Carbon Steel, Cupro Nickel |
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Threaded Coupling Form |
Threaded Full Coupling, Threaded Reducing Coupling |
Production process of Threaded Coupling
Material Selection:
Typically stainless steel, brass, aluminum, or plastic based on application needs.
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Machining:
Shaped initially through turning and machining operations.
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Thread Cutting:
Threads are precisely formed using threading tools.
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Surface Treatment:
Often undergoes plating or coating for enhanced durability.
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Quality Control:
Rigorous inspection ensures precise dimensions and thread integrity.
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Maintenance and Care
Regular Inspection:
Periodically inspect threaded couplings for signs of wear, damage, or leaks.
Tightening:
If you notice loose couplings, tighten them promptly to prevent leaks.
Cleaning:
Keep couplings free from dirt and debris, as this can compromise their effectiveness.
Replacement:
If couplings show signs of wear or damage, replace them with new ones to maintain system integrity.
Plumbing and Water Supply:
NPT and BSP threaded couplings are commonly used for joining pipes in plumbing and water supply systems, ensuring water-tight connections.
Hydraulic Systems:
Threaded couplings are crucial in hydraulic machinery, where precision and reliability are paramount.
Oil and Gas Industry:
The oil and gas industry heavily relies on threaded couplings to connect pipelines, wellheads, and other equipment.
Manufacturing:
Manufacturing processes often involve the use of threaded couplings in various machines and equipment, ensuring efficient production.
Firefighting:
Fire hose couplings play a critical role in firefighting equipment, where a quick and secure connection can make all the difference in an emergency situation.

Packing And Delivery



FAQ
As one of the most professional threaded coupling manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to wholesale customized threaded coupling from our factory.
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