China best Half-Coupling NPT (#3000) SA182f304 (S/S 304) (With Mill test) ASME 3 Inch Coupling

Product Description

Half-coupling NPT (#3000) SA182F304 (S/S 304 ) (With Mill test) ASME 3 INCH Coupling

 

Product Name

  Pipe coupling

Size

1/8″-4″ 

Standard

ANSI B16.11

Pressure

2000lbs, 3000lbs,6000lbs, 9000lbs

Type

full coupling or half coupling

    End   Threaded or socket welded

Process

Forged

Surface

 CNC machined, anti-rust oil, HDG(hot dip galv.)

Material

Carbon steel: A105, A350 LF2,etc.

Pipeline steel: ASTM 694 f42, f52, f60, f65,f70 and etc.

  Stainless steel: A182F304/304L, A182 F316/316L, A182F321,  A182F310S, A182F347H, A182F316Ti,  317/317L,  904L,  1.4301, 1.4307, 1.4401, 1.4571, 1.4541, 254Mo and etc.
 Duplex stainless steel: ASTM A182 F51, F53,F55, UNS31803, SAF2205, UNS32205,  UNS32750 , UNS32760, 1.4462,1.4410,1.4501 and etc.
  Nickel alloy: inconel600, inconel625, inconel690, incoloy800, incoloy 825, incoloy 800H,C22, C-276, Monel400, Alloy20 etc.

Cr-Mo alloy steel: A182 f11,f22,f5,f9,f91, 10CrMo9-10, 16Mo3 etc.

Application

Petrochemical industry;aviation and aerospace industry;pharmaceutical industry,gas exhaust; power plant;ship building;  water treatment, etc.

Advantages

ready stock,faster delivery time;available in all sizes,customized;high quality

 

Detailed Photos

End can be socket weld or thread

 

Marking

Various marking can be curved, or painting by laser on your request. We accept to mark your LOGO

 

Inspection

1. Dimension measurements, all within standard tolerance.
2. Accept Third party inspection
3. Supply MTC, EN15714 3.1/3.2 certificate

 

 

Packaging & Shipping

1. Packed by carton first, then Packed by plywood case as per ISPM15
2. we will put packing list on each package
3. we will put shipping markings on each package. Markings words are on your request.
4. All  wood package materials are fumigation free

 

Interested in other products

                Tee                               Coupling                                   Nipple                                 weldolet                       Flange

Our Advantages

Why Choose us

 

CZIT GROUP(3 factories, 300+workers, 200 +customers, 19+ years experience):

7*24 service time
5000tons production capacity each month, fast delivery. Standard flange and fittings have lots of stock
trace shippment each week
Professional QC QA team, more than 5 people. Inspect all goods before delivery
REFUND MONEY IF REJECTION BECAUSE OF QUALITY

 

 

FAQ

FAQ
 
Q: Can you supply Form e, Certificate of origin? 
A: Yes, we can supply. 
 
Q: Can you supply invoice and CO with chamber of commerce? 
A: Yes, we can supply. 
 
Q: Can you accept L/C deferred 30, 60, 90days? 
A: We can. 
 
Q: Can you accept O/A payment? 
A: We can. 
 
Q: Can you supply samples? 
A: Yes, some samples are free.
 
Q: Can you supply the products which comply with NACE? 
A: Yes, we can.
 
Q: Can you visit your factory
A: Yes, sure. Welcome.
 
Q: Can you inspect the goods before delivery
A: Yes, sure. Welcome to our factory inspect the goods. Also accept third party inspection, such as SGS, TUV, BV etc.
 
Q: Can you supply MTC , EN15714 3.1/3.2 certificate?
A: Yes, sure. we can
 
Q: Do you have ISO
A: Yes, we have
 
Q: Can you accept OEM?
A: Yes, we can
 
Q: Can you accept marking our LOGO?
A: Yes, we can
 
Q: What is your MOQ?
A: 1pcs for standard fittings and flanges. 
 
Q: Can you support to design our piping system?
A: Yes, we would like to your partner and our engineer will help.
 
Q: Can you offer data sheet and drawing?
A: Yes, we can
 
Q: Can you ship by carrier or airline?
A: Yes, we can. And we also can ship by train
 
Q: Can you combine your order with other supplier?  Then ship together?
A: Yes, we can. We would like help you ship together to save your time and money
 
Q: Can you shorten delivery time?
A: If very very urgent, please confirm with sales. We would like arrange extra-working time for you.
 
Q: Can you marking on package as per IPPC?
A: Yes, we can
 
Q: Can you mark “MADE IN CHINA” on products and packing?
A: Yes, we can
 
Q: Can you supply semi-finished products? 
A: Yes, we can
 
Q: We need some test sample pieces for each heat number, Can you supply?
A: Yes, we can
 
Q: Can you supply heat treatment report?
A: Yes, we can

 

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

Are there Industry Standards or Certifications for Half Couplings?

Yes, there are industry standards and certifications for half couplings to ensure their quality, performance, and safety. These standards are established by various organizations to provide guidelines for manufacturers, distributors, and users of half couplings. Compliance with these standards helps maintain consistency, reliability, and compatibility within the industry. Some of the prominent standards and certifications related to half couplings include:

  • ASME B16.11: The American Society of Mechanical Engineers (ASME) sets the ASME B16.11 standard for forged fittings, including socket weld and threaded half couplings. This standard covers the requirements for materials, dimensions, ratings, testing, and marking of forged fittings used in high-pressure applications.
  • ASTM A105 / ASTM A182: ASTM International establishes standards for materials used in various industries. ASTM A105 covers forged carbon steel piping components, including couplings, for ambient and higher-temperature service. ASTM A182 includes specifications for forged or rolled alloy-steel pipe flanges, forged fittings, and valves and is commonly referenced for high-temperature or corrosive applications involving half couplings made from alloy steels.
  • API 5CT / API 5L: The American Petroleum Institute (API) develops standards for the oil and gas industry. API 5CT specifies requirements for casing and tubing, and API 5L covers seamless and welded steel line pipe. In oil and gas applications, half couplings used for connecting casing and tubing components are expected to meet the API standards.
  • ISO 9001: The International Organization for Standardization (ISO) sets the ISO 9001 standard for quality management systems. Manufacturers of half couplings can obtain ISO 9001 certification to demonstrate their commitment to consistent quality and continuous improvement in their processes and products.
  • UL Listing: Underwriters Laboratories (UL) offers product testing and certification services. Half couplings used in fire protection systems or other safety-critical applications may undergo testing and receive UL listing to ensure compliance with fire safety and performance standards.
  • Pressure Equipment Directive (PED): In the European Union, the Pressure Equipment Directive sets requirements for the design, manufacture, and conformity assessment of pressure equipment, including half couplings used in pressurized systems. Compliance with PED is mandatory for certain pressure equipment intended for use in the EU market.

It is essential for users and buyers of half couplings to verify that the products they purchase meet the relevant industry standards and certifications. Ensuring compliance with these standards helps assure the performance, safety, and reliability of half couplings in various applications and industries.

half coupling

What are the Standard Sizes and Dimensions Available for Half Couplings?

Half couplings, as pipe fittings used in piping and plumbing systems, are available in various standard sizes and dimensions to accommodate different pipe sizes and applications. The sizes and dimensions of half couplings depend on the pipe’s nominal diameter and the specifications set by industry standards organizations. Some common standard sizes and dimensions for half couplings are as follows:

  • Thread Sizes: Half couplings come with different thread sizes to match the corresponding pipe threads. Common thread sizes for half couplings include 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 4″, 5″, 6″, and larger.
  • Length: The length of a half coupling refers to the distance from one end to the other. It is typically a few inches, depending on the pipe size and application requirements. Lengths for half couplings can range from around 1 inch to 12 inches or more.
  • Outer Diameter (OD): The outer diameter of a half coupling refers to the measurement across the widest point of the coupling’s external surface. It corresponds to the pipe’s outer diameter it is intended to connect to. Common OD sizes for half couplings include 1.05″, 1.32″, 1.66″, 1.90″, 2.38″, 2.88″, 3.50″, 4.50″, 5.56″, 6.63″, 8.63″, and others.
  • Materials: Half couplings are available in various materials, as mentioned in the previous answer. The material selection depends on factors such as the type of fluid being transported, the temperature, the pressure, and the corrosion resistance requirements.

It is essential to refer to industry standards, such as ANSI (American National Standards Institute), ASME (American Society of Mechanical Engineers), or ASTM (American Society for Testing and Materials), to ensure that the half couplings meet the specific dimensional and material requirements of the application.

When selecting a half coupling, it is crucial to consider the following factors:

  • Pipe Size Compatibility: Ensure that the half coupling’s thread size matches the pipe’s thread size to create a secure and leak-proof connection.
  • Application Requirements: Consider the operating conditions, including pressure, temperature, and the nature of the fluid being transported, to choose the appropriate material and dimensions for the half coupling.
  • Standards Compliance: Select half couplings that meet industry standards to ensure safety and compatibility with other components in the system.

In summary, half couplings are available in various standard sizes and dimensions, with different thread sizes and materials to accommodate diverse pipe sizes and applications. Proper selection based on the specific requirements of the piping or plumbing system is essential for ensuring a reliable and efficient connection between pipes.

China best Half-Coupling NPT (#3000) SA182f304 (S/S 304) (With Mill test) ASME 3 Inch Coupling  China best Half-Coupling NPT (#3000) SA182f304 (S/S 304) (With Mill test) ASME 3 Inch Coupling
editor by CX 2023-08-09

half coupling

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