China Professional High Quality Stainless Steel Coupling D Type for Thread Coupler Fittings

Product Description

Product Description

Product Name Comlock couplings
Material Stainless Steel 304/316
Model No Type D
Certificate ISO9001  IATF16949
OEM Accept
Suitable Medium Pipe line connect of water,oil,steam,gas,air,etc.
Color silver
MOQ 10 PC
Term of Payment 30%TT Deposit, the balance is paid before shipping the goods
Package Plastic Bags——-Paper Boxes——-Cartons——-Plywood Cases
Delivery Time 15-30 Days According To Order QTY
Shipment Port HangZhou, ZheJiang
 
 
Our Advantage
 
Competitive price and good after-sale service
Can do OEM products
Print logo requested on 
Quantity first, Customer upmost !

 

Detailed Photos

An eccentric CAM manipulator arm is installed on both sides of the stainless steel plate handle type quick connector sleeve. The shaft is inserted into the sleeve and the manipulator arm is pressed down on both sides. The principle of eccentric CAM is applied to force the shaft to sink into contact with the gasket to realize the braking work.
 

The joint has the following features:
1.Simple structure, easy operation, quick connection and opening.
2. Compact size, light weight, good sealing and interchangeability.
3. Adapt to various working conditions, widely used in liquid, powder and other media.
4. The joint is connected with cone tube thread, cone tube external thread, intubation connection, flange connection and other ways.
5. Specification: 1/2″-6″ Working pressure: 1.0MPa-2.0MPa,
6. Operating temperature: -40° C -+250° C.
 

 

Packaging & Shipping

 

 

Certifications

 

 

Company Profile

 

 

FAQ

Q1: We are interested in your products?
A1: In order to recommend you suitable products, please provide detail information, like size, material, pressure, model.
Q2: Is the requirement for MOQ?
A2. Generally speaking, it depends on your order.
Q3: Payment
A3: Mainly T/T, Western Union & PayPal are applicable for us. Payment Term: 30% prepayment, 70% balance paid before shipping or against copy of BL.
Q4: Can you manufacture different standards valves according to customer requirements?
A4: Yes. We can manufacture API,DIN,GOST,JIS standards for different pressure & temperature & size according to different needs.
Q5: Do you provide samples ?
A5: Yes, we can provide samples.
Q6:How do I receive the goods?
A6:We have professional transport agents, which can deliver goods to various ports, FOB, CIF, DHL, Federal Express, etc. Please provide detailed address, we can also provide door-to-door service for you.
If you want to know more about our products, please contact freely. We will patiently answer your all questions.

 

 

 

stainless steel coupling

How Does the Grade of Stainless Steel Used in Couplings Impact Their Performance?

The grade of stainless steel used in couplings has a significant impact on their performance and suitability for specific applications. Stainless steel is an alloy that contains varying amounts of elements like chromium, nickel, and molybdenum, which give it different properties. The most common grades of stainless steel used in couplings are:

  1. Austenitic Stainless Steel (e.g., 304, 316): Austenitic stainless steel is the most widely used grade in couplings due to its excellent corrosion resistance, high ductility, and non-magnetic properties. Grade 304 is commonly used in general-purpose applications, while grade 316 offers higher corrosion resistance, making it suitable for more aggressive environments like marine or chemical industries.
  2. Ferritic Stainless Steel (e.g., 430, 446): Ferritic stainless steel has lower corrosion resistance compared to austenitic grades but offers better resistance to stress corrosion cracking. It is used in certain coupling applications where moderate corrosion resistance is sufficient.
  3. Martensitic Stainless Steel (e.g., 410, 420): Martensitic stainless steel is known for its hardness and strength. It is used in couplings that require higher mechanical properties, but it may have reduced corrosion resistance compared to austenitic grades.
  4. Duplex Stainless Steel (e.g., 2205, 2507): Duplex stainless steel combines the properties of austenitic and ferritic grades, offering high strength and better resistance to stress corrosion cracking and pitting. It finds applications in critical coupling systems where both strength and corrosion resistance are essential.

The choice of stainless steel grade depends on the specific requirements of the coupling application. Factors such as environmental conditions, exposure to corrosive substances, temperature, and mechanical stresses must be considered when selecting the appropriate grade. For example, couplings used in marine environments may require a high-grade austenitic stainless steel like 316 to withstand saltwater corrosion, while couplings in food processing may use grade 304 for its hygienic properties and general corrosion resistance.

In summary, the grade of stainless steel used in couplings directly influences their performance in terms of corrosion resistance, strength, ductility, and suitability for various applications. Proper selection of the stainless steel grade ensures that the couplings deliver reliable and long-lasting performance in their intended operating conditions.

stainless steel coupling

Differences Between Stainless Steel Couplings and Aluminum or Carbon Steel Couplings

Stainless steel couplings, aluminum couplings, and carbon steel couplings are commonly used in various industrial applications, but they differ in their material properties, performance characteristics, and suitability for specific environments. Here are the key differences between these types of couplings:

  1. Material Composition:
  2. – Stainless Steel Couplings: Stainless steel couplings are made from alloyed steel containing a minimum of 10.5% chromium. This chromium content creates a passive oxide layer that provides excellent corrosion resistance.

    – Aluminum Couplings: Aluminum couplings are made from aluminum, a lightweight metal known for its high strength-to-weight ratio. Aluminum offers good corrosion resistance but is not as resistant as stainless steel.

    – Carbon Steel Couplings: Carbon steel couplings are made from plain carbon steel, which has a higher carbon content. While carbon steel offers good strength and toughness, it is more susceptible to corrosion than stainless steel or aluminum.

  3. Corrosion Resistance:
  4. – Stainless Steel Couplings: Stainless steel couplings offer the highest level of corrosion resistance among the three materials. They are well-suited for use in corrosive environments, such as marine applications or food processing, where protection against rust and chemical exposure is essential.

    – Aluminum Couplings: Aluminum couplings provide moderate corrosion resistance, but they are not recommended for highly corrosive environments or applications with exposure to acidic or alkaline substances.

    – Carbon Steel Couplings: Carbon steel couplings have the lowest corrosion resistance of the three materials and may require additional coatings or treatments to protect against rust and corrosion.

  5. Strength and Durability:
  6. – Stainless Steel Couplings: Stainless steel couplings offer excellent strength and durability, making them suitable for heavy-duty applications and environments with high mechanical loads.

    – Aluminum Couplings: Aluminum couplings are lightweight and have good strength but may not be as durable as stainless steel or carbon steel couplings.

    – Carbon Steel Couplings: Carbon steel couplings provide good strength and toughness, but they may not be as durable as stainless steel couplings in corrosive environments.

  7. Weight:
  8. – Stainless Steel Couplings: Stainless steel couplings are heavier than aluminum couplings but comparable to or slightly lighter than carbon steel couplings.

    – Aluminum Couplings: Aluminum couplings are the lightest among the three materials, making them suitable for applications where weight reduction is a priority.

    – Carbon Steel Couplings: Carbon steel couplings are heavier than aluminum couplings but offer higher strength and load-bearing capacity.

  9. Temperature Tolerance:
  10. – Stainless Steel Couplings: Stainless steel couplings can withstand a wide range of temperatures, making them suitable for both high-temperature and cryogenic applications.

    – Aluminum Couplings: Aluminum couplings have good thermal conductivity but may not be suitable for extremely high-temperature applications.

    – Carbon Steel Couplings: Carbon steel couplings have good temperature tolerance but may be limited in extremely high-temperature or cryogenic environments.

The choice of coupling material depends on the specific requirements of the application, such as the operating environment, load capacity, and corrosion resistance needed. Stainless steel couplings are often preferred for applications where corrosion resistance and durability are paramount, while aluminum couplings are chosen for their lightweight properties. Carbon steel couplings find use in applications requiring good strength and moderate corrosion resistance.

stainless steel coupling

Industry Standards and Certifications for Stainless Steel Couplings

Yes, there are industry standards and certifications that govern the manufacturing and performance of stainless steel couplings. These standards ensure that the couplings meet specific quality and safety requirements for various applications.

Some of the common industry standards and certifications for stainless steel couplings include:

  • American National Standards Institute (ANSI): ANSI sets standards for various industrial components, including couplings. ANSI standards ensure the couplings’ dimensional accuracy, material quality, and performance characteristics.
  • International Organization for Standardization (ISO): ISO provides globally recognized standards for couplings, among other products. ISO standards cover areas like coupling design, materials, and manufacturing processes.
  • American Society for Testing and Materials (ASTM): ASTM standards define the material properties and testing procedures for stainless steel couplings, ensuring their durability and reliability.
  • European Committee for Standardization (CEN): CEN develops European standards for couplings, adhering to the European Union’s regulations for quality and safety.
  • Underwriters Laboratories (UL): UL is a certification organization that tests and certifies couplings for compliance with safety and performance standards. UL-listed couplings have undergone rigorous testing and evaluation.

When selecting stainless steel couplings, it is essential to ensure that they comply with relevant industry standards and carry appropriate certifications. These standards and certifications provide assurance of the coupling’s quality, performance, and safety, making them suitable for specific applications.

China Professional High Quality Stainless Steel Coupling D Type for Thread Coupler Fittings  China Professional High Quality Stainless Steel Coupling D Type for Thread Coupler Fittings
editor by CX 2023-12-12

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