China Hot selling SA 105 Pipe Fittings Forging Sw Half Coupling 4 Inch Coupling

Product Description

Basic Info.

What is half coupling?

Half coupling is used for small bore branching from a vessel or large bore pipe. It can be threaded or socket-type. It has a socket or thread end on only 1 side. A socket weld half coupling can be directly welded to large bore pipe to make a branch connection. It is used to take a small bore pipe branch-off from a large bore pipe where the pipe specification requirement is a socket weld in a small bore size. A threaded half coupling only has 1 thread end, and another end of the coupling should be a butt welding end with either a plain end or a bevel end.

 

 

Nominal Size

End- to- end

Outside Diameter

Length of Thread

DN

W

D

 

 

L5min

 

 

L2min

3000&6000

3000

6000

Unit:mm

6

32

16

22

6.4

6.7

8

35

19

25

8.1

10.2

10

38

22

32

9.1

10.4

15

48

28

38

10.9

13.6

20

51

35

44

12.7

13.9

25

60

44

57

14.7

17.3

32

67

57

64

17.0

18.0

40

79

64

76

17.8

18.4

50

86

76

92

19.0

19.2

65

92

92

108

23.6

28.9

80

108

108

127

25.9

30.5

100

121

140

159

27.7

33.0

Size

1/8″-4″

Pressure

2000lbs, 3000lbs, 6000lbs, 9000lbs

Type

Half coupling and full coupling

Connection end

Thread or socket weld

Material

Carbon steel, stainless steel, Alloy steel

Standard

ANSI B16.11

 

 

Q1. Where is your factory?

A1: Our company’s processing center is located in HangZhou, ZHangZhoug, China.

Equipped with various types of machinery and equipment, such as laser cutting machines and mirror polishing machines, we can provide a variety of personalized services according to customer needs.

Q2. What are your company’s main products?

A2: Our main products are stainless steel plates, coils, round or square tubes, bars, channel steel pipe fittings, etc.

Q3. How do you control quality?

A3: Factory testing and certification are provided CHINAMFG shipment, and third-party inspection is available.

Q4. What are your company’s strengths?

A4: We have many professionals and technicians, more competitive prices, and better after-sales service than other stainless steel companies.

Q5. How many countries have you exported to?

A5: Exported to more than 50 countries, mainly from the United States, Russia, United Kingdom, Kuwait, Egypt, Turkey, Jordan,

India etc.

Q6. Can you provide samples?

A6: There are small samples in the store. We can provide samples for free. The customer needs to bear the shipping cost.

Customized samples will take about 5-7 days.
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half coupling

Are there Specific Safety Considerations when Using Half Couplings in High-Pressure Systems?

Yes, there are specific safety considerations to keep in mind when using half couplings in high-pressure systems. High-pressure applications pose unique challenges, and it is crucial to follow safety protocols to prevent potential hazards and ensure the integrity of the piping or plumbing system. Here are the key safety considerations:

  • Pressure Ratings: Ensure that the half couplings used in high-pressure systems are rated for the intended pressure levels. Half couplings have specific pressure ratings based on their design and material. Exceeding these ratings can lead to coupling failure and catastrophic leaks.
  • Material Selection: Choose half couplings made from suitable materials capable of withstanding the pressures and conditions of the system. High-pressure applications often require stronger and more durable materials, such as stainless steel or high-grade alloys.
  • Proper Installation: Accurate and proper installation is critical in high-pressure systems. Follow the manufacturer’s guidelines and industry best practices during installation to ensure a secure and leak-free connection. Improper installation can lead to coupling failure under pressure.
  • Weld Quality: For socket weld and butt weld half couplings, the quality of the weld is paramount in high-pressure systems. Only qualified welders should perform the welding, and the welds must be thoroughly inspected to ensure they meet the necessary standards for strength and integrity.
  • Inspections and Testing: Regularly inspect the half couplings and the entire system for signs of wear, damage, or leaks. Implement non-destructive testing methods to assess the integrity of the couplings and welds. Pressure testing the system periodically can help identify potential weaknesses and ensure its reliability.
  • Temperature Considerations: High-pressure systems can generate significant heat, and temperature fluctuations can impact the integrity of the couplings. Ensure that the chosen materials can handle the temperature variations experienced in the system without compromising their strength and performance.
  • Stress Analysis: Conduct stress analysis of the piping system to identify potential stress points and ensure that the half couplings can handle the applied stresses. Proper support and anchoring of the system can reduce the stress on the couplings and prevent failures.
  • Training and Safety Protocols: Ensure that personnel working with high-pressure systems are well-trained and aware of the safety protocols. They should understand the potential risks associated with the system and know how to respond to emergencies or leaks effectively.
  • Emergency Shutdown Procedures: Establish clear and effective emergency shutdown procedures in case of unforeseen incidents. This can help minimize damage and risks to personnel in the event of a coupling failure or system breach.

By taking these safety considerations into account, operators can mitigate the risks associated with using half couplings in high-pressure systems. Proper planning, material selection, installation, and maintenance are key to ensuring the safe and reliable operation of the system under high pressure.

half coupling

Are there Special Half Couplings Designed for Specific Types of Pipes (e.g., Stainless Steel, PVC)?

Yes, there are special half couplings designed to be compatible with specific types of pipes, such as stainless steel, PVC, and other materials. The choice of half coupling material should be based on the properties of the pipe and the requirements of the application. Here are some examples of special half couplings designed for specific types of pipes:

  1. Stainless Steel Half Couplings: These couplings are specifically designed to be used with stainless steel pipes. Stainless steel is known for its corrosion resistance and is commonly used in applications where the conveyed fluid or gas may be corrosive or require high hygiene standards. Stainless steel half couplings provide a reliable and durable connection in such environments, making them suitable for industries like food processing, pharmaceuticals, chemical processing, and marine applications.
  2. PVC Half Couplings: PVC pipes are widely used for water supply, drainage, and irrigation systems due to their lightweight, corrosion resistance, and affordability. Special half couplings for PVC pipes are typically made of PVC material or other compatible plastics. These couplings ensure a secure and leak-free connection in PVC pipe systems, especially in residential and agricultural applications.
  3. CPVC Half Couplings: CPVC (Chlorinated Polyvinyl Chloride) pipes are used in applications where higher temperature and pressure resistance are required compared to standard PVC pipes. CPVC half couplings are designed to be compatible with CPVC pipes, providing a reliable joint for hot water supply, industrial piping, and other high-temperature applications.
  4. Copper Half Couplings: Copper pipes are commonly used for water supply lines and in refrigeration systems. Half couplings made from copper or brass are suitable for connecting copper pipes, ensuring a tight and durable connection in residential and commercial plumbing systems.
  5. Galvanized Steel Half Couplings: Galvanized steel pipes are coated with a layer of zinc to enhance their corrosion resistance. Half couplings made from galvanized steel are used with galvanized pipes in outdoor applications or in areas prone to corrosion, such as in sprinkler systems and outdoor water distribution.
  6. Alloy Steel Half Couplings: In high-pressure and high-temperature applications, where the properties of carbon steel are not sufficient, alloy steel half couplings are used. These couplings are designed to handle the demanding conditions of industries such as oil and gas, petrochemicals, and power generation.

It is essential to select the right half coupling material that matches the properties and requirements of the specific type of pipe in the system. Using a compatible half coupling ensures a reliable and leak-free connection, reduces the risk of corrosion or degradation, and contributes to the overall efficiency and longevity of the piping system.

half coupling

What are the Various Types of Half Couplings and Their Specific Applications?

Half couplings come in different types, each designed to cater to specific applications and requirements in piping and plumbing systems. The various types of half couplings and their specific applications are as follows:

  • Threaded Half Couplings: Threaded half couplings have internal threads on one end, allowing for easy connection to pipes with matching external threads. These couplings are commonly used in applications where a secure and leak-proof joint is needed, such as connecting valves, instruments, or equipment to the pipeline.
  • Socket Weld Half Couplings: 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. Socket weld half couplings are widely used in high-pressure applications and systems that require frequent disassembly.
  • Butt Weld Half Couplings: Butt weld half couplings are designed for butt welding, which involves welding the coupling directly to the larger pipe end. The other end can be used to attach a smaller pipe. These couplings are commonly used in critical applications where a smooth and continuous inner surface is required to prevent turbulence and pressure losses.
  • Reducing Half Couplings: Reducing half couplings are used when a transition between different pipe sizes is needed. One end of the coupling has larger threads or a larger socket to accommodate a larger pipe, while the other end has smaller threads or a smaller socket to connect a smaller pipe. These couplings are commonly used in systems that require a change in pipe size, such as reducing the flow rate or connecting equipment with different pipe sizes.
  • Mechanical Grip Half Couplings: Mechanical grip half couplings use a mechanical mechanism to grip and secure the smaller pipe without welding or threading. They are commonly used in temporary connections or situations where frequent disassembly is necessary, such as in temporary test setups or during equipment maintenance.

The choice of half coupling type depends on the specific application, the pipe materials, the operating conditions, and the required joint strength. It is essential to follow industry standards and guidelines when selecting the appropriate type of half coupling to ensure the safety and efficiency of the piping or plumbing system.

In summary, various types of half couplings cater to different needs in piping and plumbing systems. Whether for permanent connections, temporary applications, or transitions between different pipe sizes, half couplings offer versatile solutions for joining pipes securely and efficiently.

China Hot selling SA 105 Pipe Fittings Forging Sw Half Coupling 4 Inch Coupling  China Hot selling SA 105 Pipe Fittings Forging Sw Half Coupling 4 Inch Coupling
editor by CX 2024-05-03

half coupling

As one of leading half coupling manufacturers, suppliers and exporters of products, We offer half coupling and many other products.

Please contact us for details.

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