Product Description

Contact 

Export sales

Name : Joanna Zhang

Wetchat/ Kakao Talk: JoannaZ4

Cell/ /imo:

ICQ: 720664199

Office: 22 58283351

High quality 1 inch hydraulic fit coupling stainless steel hydraulic hose quick coupling

Our Catalog on the hydraulic connections

Thread: metric. We can do metric, bspt, npt, jic, sae thread on customer’s request.
Material: carbon steel, ss304, ss316, brass
Color: White silver, Blue silver, Yellow zinc.
Surface treatment: Cr+3, Cr+6 zinc plating, zn-ni plating.
Technic: forged

Product Show

Our company
ZheJiang CHINAMFG Rubber Product Group Co., Ltd, founded in 1999, is a manufacturer dedicated to the design, production, and distribution of all types of flexible hoses, fittings, adapters and quick couplings with excellent quality standard.

After 20 years of development, today the plants of CHINAMFG Group has expended to occupy an area of 100,000 square meters, owns over 300 well-trained staffs and over 10 million CHINAMFG production capacity per year, in order to meet high demand of both local and oversea market. Until now, CHINAMFG Group has been awarded as ‘The CHINAMFG trademark enterprises” and “The best top 10 enterprises” in China.

Our product catalog

1. SAE 100 R1AT, R2AT, R5, R6, R7, R8, R12, R13, R14,R15
2. DIN EN 853 1SN, 2SN,2ST;  EN 856 4SP, 4SH
3. SAE100 R14 Teflon hose
4. Jack hose, washing hose, sewer hose
5. SAE100 R4 Air/Water/Oil Suction & Discharge Rubber Hose  
6. LPG(gas) HOSE, twin welding hose,Steam hose
7. Sandblast Hose,Concrete pump hose
8. Rotary Drilling and Vibrator Hoses, Cement Hoses, and Mud Delivery Hoses
9. Fiber glass fire sleeve(Pyrojacket), Plastic Spiral Guard for Hydraulic Hose
10. Hydraulic fittings and adaptor
11. Crimping machine,Skiving machine, cutting machine

FAQ

Q1. Are your company a manufacturer or trading company?
A: Our company is a manufacturing company.

Q2. Can your products be customized?
A: Sure, we can provide the customized design and customized production for metal connectors, hose assembly and steel pipe assembly as your requirements.

Q3. Can you produce products with my own brand?
A: Yes,we can offer OEM services.

Q4. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages before you pay the balance.

Q5.What is your port of loading?
A: Xihu (West Lake) Dis.g port 

Q6. How about your delivery time?
A: It usually takes 15 to 30 days,which generally depends on the quantity of your order and our storage.

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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.

Design Considerations for Stainless Steel Couplings in Marine or Corrosive Environments

Stainless steel couplings are often used in marine or corrosive environments due to their corrosion-resistant properties. However, there are some specific design considerations to ensure optimal performance and longevity in such harsh conditions:

1. Material Selection: Choose the right grade of stainless steel that offers the best corrosion resistance for the specific marine or corrosive environment. Common stainless steel grades used in such applications include 316 and 316L, which provide excellent resistance to seawater and various corrosive agents.
2. Surface Finish: Ensure that the coupling’s surface has a smooth and polished finish. A smooth surface minimizes the accumulation of contaminants and reduces the risk of crevice corrosion in marine environments.
3. Sealing: Implement effective sealing mechanisms to prevent moisture and contaminants from entering the coupling. Seals such as rubber gaskets or O-rings can help protect the coupling’s interior and reduce the risk of corrosion-related failure.
4. Coatings: Consider applying additional protective coatings or treatments to enhance the coupling’s corrosion resistance. Coatings like epoxy or zinc can provide an extra layer of protection against marine and corrosive elements.
5. Isolation: In some cases, it might be beneficial to isolate the coupling from direct contact with seawater or corrosive substances. Mounting the coupling on non-corrosive materials or using isolating bushings can help minimize the impact of harsh environments.
6. Regular Maintenance: Perform routine inspections and maintenance to check for signs of corrosion or wear. Regularly clean the coupling and remove any accumulated debris or contaminants to prevent accelerated corrosion.
7. Testing: Before deploying stainless steel couplings in marine or corrosive environments, conduct thorough testing to ensure they meet the specific requirements of the application. This testing can include corrosion resistance testing and performance evaluations under simulated conditions.
8. Monitoring: Implement monitoring systems to detect any early signs of corrosion or degradation. Monitoring can help identify potential issues before they lead to coupling failure and allow for timely preventive measures.

By carefully considering these design considerations and implementing appropriate measures, stainless steel couplings can withstand the challenges of marine or corrosive environments and maintain their performance and durability over time.

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 2024-03-11