Product Description

Basic Info

Product Description

304/316L stainless steel Quick connector Type D

manufacturer of valve fittings, including stainless steel threaded fittings and ball valves, gate valves, globe valves, check valves, Y filters, quick couplings
.High strength and wear resistance. Stainless steel joints have high strength and wear resistance, and can be used for a long time in harsh environments.
.Good corrosion resistance. It has good corrosion resistance, can prevent water and chemical corrosion, and is especially suitable for the transportation of corrosive liquids.
.Aging resistance and high temperature and pressure resistance. It has good anti-aging performance, can withstand high temperature and high pressure environment, fast connection and safe and reliable. Features fast connection, easy to use, and strong connection. Easy to maintain. Easy disassembly, easy equipment maintenance and replacement of pipeline components. A wide range of applications. Suitable for all kinds of pipe connection, including high pressure, high temperature, corrosive environment

Detailed Photos

Features:
1.304/316L stainless steel pipe fittings
2.BSPT/Bsp/NPT/G Thread
 

Competitive Advantages:

.Our products is guaranteed within 18 months after delivery.
.We offer free sample if interest before orders.
.Technology renovation, process improvement, structure optimization and quality improvement.
.Excellent after-sales service system, providing timely and optimal service, which help you to win the market.
.100% inspection & testing before delivery.
.Convenient shipping sea port, and standard exporting carton boxes & plywood cases.
Huanyi valve looks CHINAMFG to strengthening cooperation with all sectors of society to create brilliant.
                                                                          MADE IN CHINA, FOCUS ON WORLD!
 

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: For some small size, like 1/4”-1”(DN6-DN25), it request the MOQ is 50pcs for each size. 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: How long is your delivery time?
A4: Generally it is about 30-45days depends on the order quantity.
Q5: Can I have my own customized product?
A5: Yes, your customized requirements for size, mark, etc.
Q6: Can I have my own Logo on the product?
A6: Yes
If you want to know more about our products, please contact freely. We will patiently answer your all questions.

Huanyi Valve fittings Co., LTD 
Address: Room 401, Building 15, CHINAMFG Xiaowei Park, Xihu (West Lake) Dis. Second Road, Xihu (West Lake) Dis. District, HangZhou, China
Other Products We Manufacture
1.Gate Valve
    Ball Valve
   Globe Valve
   Check Valve
Y-Strainer/Filter
2.stainless steel pipe fitting
Elbow
tee
internal thread
Socket 
Hex Nipple
Unions
Cross
Street Elbow90°
Elbow45°
Hose inpple
Hex cap
Caps
Square plugs
Red Tee
Red Socket
Red Elbow45°
Hex Bushing
Hexagon Plugs
Red Hex Nipple
Socket Weld Union
reducing bushing
F/M Unions
MXM male unions
Union Elbow Pipe Fittings
90 Degree Female Threaded Hose Barb Elbow
Female Reducing Elbow Tee Cross Union Coupling Thread Pipe Fittings
3 Way Tubing Hose Fittings
Tee Female Male Thread Casting Pipe Fitting
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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.

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:

– 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.

2. Corrosion Resistance:

– 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.

3. Strength and Durability:

– 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.

4. Weight:

– 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.

5. Temperature Tolerance:

– 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.

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.

editor by CX 2024-04-10