China Standard 316 Stainless Steel Frmale Half Couplings NPT

Product Description

  316 Stainless Steel Frmale Half Couplings NPT HangZhou FLUIDO

Product Description

 316 Stainless Steel Frmale Half Couplings NPT 

 

 

Type: Close Nipple, Short Nipple, Shoulder nipple, Long Nipple, Running Nipple, Barrel Nipple etc
Type of pipe: Welded or Seamless pipe
Size: 1/8″ to 8″
Length: 3/4″-24″; 19mm-500mm; Or as per customer’s request
Thickness: SCH40, SCH80, SCH160; CLASS A, CLASS B, CLASS C
Material: Carbon steel; Stainless steel: 304/304L/316/316L/321
Standard:
American Standard: ASTM A733 / PIPE: ASTM A53 / ASTM A106 / THREADS: ANSI B1.20.1
British Standard: BS EN15711 / PIPE: BS1387 / THREADS: ISO 7/1
DIN Standard: DIN2982 / PIPE: DIN2440 / THREADS: DIN2999
Surface treatment: Black, Hot galvanized, Electro galvanized
Packing: Packed in cartons, then on pallet
Min Order Quantity: According to customer’s requirement
Delivery Time: 25 days after order confirmed
Payment: By T/T or L/C
Applications range:1) Petroleum, chemical industry, water conversancy, electric power, Natural gas, Coal gas, Water power and other pipeline projects.
2) Industrial pipeline system on shipping, mine, oil field, textile, powder plant etc 
3) Pipeline system on subway station, railway station, airport, seaport, bridge etc

 

Packaging & Shipping

 


1.Packing Details : carton+plywood pallets/cases+container.

2.Standard exporting cartons and plywood pallets/cases.
3. According to the customer’s requirement.
4.Delivery Details : 15-30 days after confirming order.

Company Profile

 

HangZhou CHINAMFG Industrial Co., Ltd.is 1 of the biggest manufacturers and exporters of pipeline products in China. We specialize in pipeline products, casting and forging (with or without machining): Malleable iron pipe fittings, ductile iron grooved fitting and coupling, 125# cast iron pipe fitting, steel butt-welding pipe fitting, steel flange, forged steel pipe fittings, stainless steel threaded pipe fitting, steel pipe nipple & merchant coupling, steel pipe, brass pipe nipple and bronze fitting, cast iron soil pipe and fitting, resilient seat non-rising stem wedge gate valves, check valve, butterfly valve, brass valve and bib-cock, scaffolding couplers / clamps, scaffolding frame & props, scaffolding accessories, pipe clamp fitting, concrete lifting anchors, lifting insert, socket & fixing insert, concrete hardware accessories, expansion shell, pipe coupling & hose clamps, radiator, cast iron manhole cover, auto parts, CHINAMFG parts, investment (lost wax casting) casting parts, die casting parts, and kinds of casting and forging machinery parts according samples or drawing from customers. All our factories are certified to the international ISO-9001 quality system standard and all products are carefully tested to meet the strict quality requirements and industry standards prior to each shipment. Parts of our products have been tested, listed, approved by some predominant labs and bodies. In order to enhance our accountability for environment, the environmental management system to ISO14001 has been assessed and registered by BVQI (France). Any information, samples and drawings which you can provide will facilitate us to make the correct supply to meet your special requirements.

Certificates

 316 Stainless Steel Frmale Half Couplings NPT 

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half coupling

Can a Half Coupling be Threaded or Welded onto Pipes?

Yes, a half coupling can be both threaded and welded onto pipes in piping and plumbing systems. The method of attachment depends on the type of half coupling and the specific application requirements.

Threaded Half Coupling: Threaded half couplings have internal threads on one end, allowing for easy connection to pipes with matching external threads. To install a threaded half coupling, the larger end with internal threads is screwed onto the male threads of the larger diameter pipe. The smaller pipe is then threaded into the other end of the half coupling, creating a secure and leak-proof joint. Threaded half couplings are commonly used when frequent disassembly may be required or when connecting components like valves or instruments to the pipeline.

Socket Weld Half Coupling: Socket weld half couplings have a socket on one end, which allows for the insertion of the pipe without threading. The joint is then welded for a strong and permanent connection. The larger diameter pipe is inserted into the socket, and a fillet weld is applied around the outside of the coupling to secure the smaller pipe. Socket weld half couplings are often used in high-pressure applications and systems that require a robust and reliable connection.

Butt Weld Half Coupling: Butt weld half couplings are designed for butt welding, which involves welding the coupling directly to the larger pipe end. The smaller pipe is inserted into the other end of the half coupling, and a butt weld is applied to secure the joint. Butt weld half couplings are commonly used in critical applications where a smooth and continuous inner surface is required to prevent turbulence and pressure losses.

The choice between threaded and welded half couplings depends on factors such as the operating conditions, the type of fluid being transported, and the required joint strength. Threaded half couplings offer ease of installation and disassembly, making them suitable for applications where frequent maintenance is needed. On the other hand, socket weld and butt weld half couplings provide permanent and strong connections, making them suitable for high-pressure and critical systems.

Regardless of the method of attachment, it is essential to ensure proper installation and adherence to industry standards to achieve a secure and leak-free connection. Regular inspection and maintenance of the half couplings and the entire piping system are also necessary to detect any signs of wear, corrosion, or damage and address them promptly.

half coupling

What are the Differences Between Half Couplings and Full Couplings in Pipe Fittings?

In pipe fittings, both half couplings and full couplings serve the purpose of joining two pipes together, but they differ in their design and applications. Here are the key differences between half couplings and full couplings:

  • Design: The main difference lies in their design. A half coupling has one end with internal threads or a socket, allowing it to be connected to a threaded pipe or inserted into the end of a pipe without threading. The other end of the half coupling is an open end, ready to be welded or threaded to another pipe. On the other hand, a full coupling has both ends with female threads, enabling it to connect two threaded pipes directly without the need for welding.
  • Function: Half couplings are commonly used to create a joint between a pipe and a component such as a valve, pump, or pressure gauge. The open end of the half coupling facilitates easy attachment to the component, while the threaded or socketed end connects to the pipe. On the other hand, full couplings are used when a direct, rigid connection between two pipes is needed, providing a continuous flow path without any interruptions.
  • Application: Half couplings are frequently used in situations where frequent disassembly or maintenance may be required. For example, in systems with valves that need periodic inspection or replacement, a half coupling allows for easy removal without disturbing the entire pipeline. Full couplings, on the other hand, are more suitable for applications where a permanent, leak-proof connection is needed, such as in pressurized systems or critical process pipelines.
  • Length: Full couplings are typically longer than half couplings because they need to accommodate two threaded ends, while half couplings have one threaded or socketed end and an open end, making them shorter in length.
  • Installation: The installation process differs for half and full couplings. Half couplings are welded or threaded onto one pipe end and then connected to another pipe or component using welding or threading, respectively. Full couplings, on the other hand, directly join two pipes with threaded ends, requiring no additional welding or threading.
  • Flexibility: Half couplings offer more flexibility due to their ability to connect to different types of components or pipes with varying end connections. Full couplings are less flexible in this regard, as they can only join two threaded pipes together.

Overall, the choice between half couplings and full couplings depends on the specific requirements of the piping system, including the need for temporary connections, the type of components being attached, the nature of the fluid being transported, and the desired level of joint permanence and flexibility.

half coupling

What are the Different Materials Commonly Used for Manufacturing Half Couplings?

Half couplings are pipe fittings used in piping and plumbing systems to connect two pipes of different sizes. They are available in various materials, each offering unique properties suitable for different applications. Some of the commonly used materials for manufacturing half couplings include:

  • Stainless Steel: Stainless steel half couplings are popular due to their excellent corrosion resistance, high strength, and durability. They are ideal for applications involving aggressive or corrosive media and are commonly used in industries such as chemical processing, oil and gas, and food processing.
  • Carbon Steel: Carbon steel half couplings are known for their high tensile strength and affordability. They are widely used in industrial applications where the fluid being transported is not corrosive. Carbon steel couplings are commonly used in water supply systems, heating, and ventilation systems.
  • Brass: Brass half couplings are valued for their resistance to dezincification and corrosion. They are often used in plumbing systems, particularly for connecting copper pipes. Brass couplings find applications in water supply lines, plumbing fixtures, and other potable water-related applications.
  • Copper: Copper half couplings are commonly used in plumbing systems and HVAC (heating, ventilation, and air conditioning) applications. Copper is known for its excellent thermal conductivity and antimicrobial properties, making it suitable for applications where heat transfer and cleanliness are crucial.
  • Aluminum: Aluminum half couplings are lightweight and corrosion-resistant, making them suitable for specific industrial and marine applications. They are often used in the transport of certain chemicals and in offshore installations.
  • Bronze: Bronze half couplings are known for their strength and resistance to corrosion and wear. They find applications in marine environments, particularly for seawater piping systems, as well as in some oil and gas applications.

The choice of material for half couplings depends on various factors such as the nature of the fluid being transported, the operating conditions, the required strength, and the budget constraints. Proper material selection is essential to ensure the longevity and efficiency of the piping or plumbing system.

China Standard 316 Stainless Steel Frmale Half Couplings NPT  China Standard 316 Stainless Steel Frmale Half Couplings NPT
editor by CX 2024-04-08

half coupling

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