Product Description

Hydraulic Quick Coupling Fitting

ISO7241-A Series
ISO7241-B Series
ISO5675 Series
ISO16571 Series
New Flat Face Series
Thread Connected Series
Non-Value Series
Pneumatic Quick Series

We supply all ranges of quick coupling. ISO7241-1A, ISO7241-1B, ISO5675, ISO16571, Flat Face Series, Thread Connected Series, Non-Valve Series, Pneumatic Quick Coupling. If you have any demand, please feel free to inquire us.

One-Piece Hydraulic Fitting
Air Quick Coupler
Aluminum Quick Coupler
Camlock Quick Coupling
Female Quick Coupler
Quick Connect Coupler
Quick Coupler
Quick Coupling Camlock
Quick Hose Coupler
R134a Quick Coupler

Material

Carbon steel, Stainless Steel, Brass, and Aluminum

Application

Quick couplings are also known as quick connect couplers that can connect at either end of the connection.

Quick couplings can be connected and disconnected easily as they are compact but very robust and sturdy in their application. They are highly reliable as they provide unswerving service for the transfer of fluid for pneumatic, hydraulic and vacuum systems.

We can do

METRIC, BSP, NPT, JIC, and SAE threads on the customer’s request.
Color: White Silver, Blue Silver, Yellow zinc.
Surface treatment: Cr+3, Cr+6 zinc plating, Zn-ni plating.
Technic: forged

Production Line

I. Fittings and Adapters

1.Swaged Metric Fittings

Mertic Flat Seal Fittings

Metric Multiseal Fittings

Metric 60°Cone Seal Fittings

Metric 74°Cone Seal Fittings

2. Swaged British Fittings

BSP O-RING Seal Fittings

BSP Flat Seal Fittings

BSP Multiseal Fittings

3. Swaged American Fittings

SAE O-RING Seal Fittings

ORFS Flat Seal Fittings

NPSM 60°Cone Seal Fittings

JIC 74°Cone Seal Fittings

4. Staplelok Fittings

Banjo

Double connection

5. Ferrule

FERRULE for SAE100R1AT/ EN 853 1SN HOSE

FERRULE for SAE100R1A EN 853 1ST HOSE

FERRULE for SAE100R2AT/DIN20571 2SN HOSE

FERRULE for SAE100R1AT-R2AT,EN853 1SN-2SN and EN 857 2SC

6. Metric Adapters

Metric Thread O-RING Face Seal Adapters

Metric Thread Bite Type Tube Adapters

7. British Adapters

BSP Thread 60°Cone Adapters

JIS BSP Thread 60°Cone Adapters

8. American Adapters

NPT Thread Adapters

II.Couplers and clamps:  European / American / Austraulia type camlock, pin-plug and clamps for large size hoses with NPT, BSP thread.

III.Stainless Steel (316SS / 304SS) & Brass & aluminum fittings:  NPT,JIC,BSP etc threaded male and female fittings & adaptors for low & high pressure

 

Established in 1999, CHINAMFG Group Hydraulic Fluid Technology ZheJiang Co., Ltd is a manufacturer dedicated
to the DESIGN, PRODUCTION, and DISTRIBUTION of all types of FLEXIBLE HOSES, FITTINGS, ADAPTERS and
quick couplings with excellent quality standards.
After 21 years of development, today the plants of CHINAMFG Group have expanded to occupy an area of 260,000
square CHINAMFG with over 50 million CHINAMFG of production capacity per year, to meet the huge demand for both
local and oversea market Until now, CHINAMFG Group has been awarded as’The CHINAMFG trademark enterprise”
and “The best top 10 enterprises” in China.

Our Services:
1. High-quality products.
2. Fast delivery.
3. OEM services.
4. Perfect after-sale services.

Our advantages:
1. High quality with competitive price (We are a manufacturer/factory)
2. International advanced machine. (Knitting machine of Germany MAYER, Wire wrapping machine of South Korea SUNGIL, Burst-testing machine of MAXIMATOR, Impulse-testing machine of BIMAL)
3. Unique product design with excellent production technology
4. Strict quality assurance system
5. We can provide a FREE SAMPLE for our customers
6. We can crimp hose assembly for our customers.
7. We welcome clients to visit our factory leading to a better understanding of our production
8. We have been named ‘The CHINAMFG trademark enterprises” and “The best top 10 enterprises” in China.
FQA
1. How to choose a hydraulic rubber hose?
Figuring out which hose is right for our system depends on sever key factors, including Size, Temperature, Compatibility, and choosing the right hose fitting Connection.

2. How do you check all the goods in the production line?
We have spot inspection and finished product inspection. We check the goods when they go into the next step production procedure.

3. Where is your factory located and how can I visit the factory?
Our factory is located in JingXian City, ZheJiang Province. 1 Hour far from ZheJiang city, and 2 hours far from ZheJiang city by
High-speed train.

4: How do you make our business a long-term and good relationship?
(1). We keep good quality and competitive prices to ensure our customers benefit ;
(2). We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

5. What is the production period normally?
1. Samples: within 7 working days.
2. Normal order: 20 to 45 days.

If you have any questions, please feel free to contact us!

How do hydraulic couplings contribute to reducing vibrations and noise in hydraulic systems?

Hydraulic couplings play a crucial role in reducing vibrations and noise in hydraulic systems, providing several mechanisms that help dampen and absorb these unwanted effects. Here’s how hydraulic couplings contribute to vibration and noise reduction:

• Torsional Flexibility: Hydraulic couplings are designed with torsional flexibility, allowing them to twist and absorb torsional vibrations that may occur during operation. As the fluid flows through the coupling, it acts as a damping medium, attenuating vibrations and minimizing their transmission to the rest of the system.
• Vibration Isolation: The inherent flexibility of hydraulic couplings helps isolate vibrations between the driving and driven components of the hydraulic system. This isolation prevents vibrations from propagating through the system, reducing the overall vibration levels and promoting smoother operation.
• Shock Absorption: In systems subject to sudden changes in load or pressure, hydraulic couplings can act as shock absorbers. They cushion the impact of these shock loads, preventing them from reverberating through the system and causing noise or damage to sensitive components.
• Damping Characteristics: Hydraulic couplings, especially those utilizing a hydraulic fluid medium, exhibit excellent damping characteristics. The fluid dissipates energy by converting kinetic energy into heat energy, effectively reducing the system’s resonant vibrations and noise.
• Smooth Power Transmission: Hydraulic couplings provide smooth power transmission between the driving and driven elements. The absence of jerks or sudden changes in torque helps in minimizing vibrations and noise generation, leading to quieter operation.
• Compensation for Misalignments: Hydraulic couplings can compensate for certain misalignments between the shafts they connect. By accommodating misalignments, the couplings reduce the stress on the system components, mitigating vibrations that might arise from misalignment-induced forces.
• Elimination of Metal-to-Metal Contact: In certain couplings, the use of elastomeric or flexible elements eliminates direct metal-to-metal contact between the driving and driven shafts. This reduces transmission of vibrations and noise, resulting in a quieter system.

By incorporating these vibration and noise-reducing features, hydraulic couplings enhance the overall performance and longevity of hydraulic systems. They contribute to a more pleasant working environment by minimizing noise levels and reducing the risk of fatigue failure caused by excessive vibrations. Additionally, reduced vibrations help prevent premature wear and extend the lifespan of system components, ultimately leading to cost savings and improved efficiency in industrial applications.

What are the standard sizes and thread types available for hydraulic couplings?

Hydraulic couplings come in a variety of sizes and thread types to accommodate different hydraulic system requirements. The standard sizes and thread types are specified based on industry standards and regional norms. Here are some common standard sizes and thread types for hydraulic couplings:

• Thread Types:
  • NPT (National Pipe Thread): NPT is a widely used thread type in North America. It has a tapered thread design and requires thread sealants like Teflon tape to ensure a leak-free connection.
  • BSP (British Standard Pipe): BSP is commonly used in Europe and many other parts of the world. It can have parallel (BSPP) or tapered (BSPT) threads and often requires thread sealants for a secure connection.
  • JIC (Joint Industry Council): JIC threads have a 37-degree flare angle and are prevalent in hydraulic systems. They provide a reliable metal-to-metal seal without the need for thread sealants.
  • SAE (Society of Automotive Engineers): SAE threads are commonly used in mobile hydraulic applications. They have a 45-degree flare angle and offer excellent sealing capabilities.
  • ORFS (O-Ring Face Seal): ORFS fittings feature a flat face with an O-ring seal. They are suitable for high-pressure applications and provide a reliable leak-free connection.
• Standard Sizes:
  • Hydraulic couplings are available in various standard sizes, typically measured in inches or millimeters. Common sizes for hydraulic couplings include 1/4″, 3/8″, 1/2″, 3/4″, 1″, and 1 1/4″ for smaller couplings and up to larger sizes like 2″, 2 1/2″, and 3″ for heavy-duty industrial applications.
  • Metric sizes, such as 6 mm, 10 mm, 12 mm, 16 mm, and 20 mm, are also commonly used in hydraulic systems, especially in countries that follow the metric system.
  • Some specialized hydraulic systems may require custom sizes to meet specific application needs.

It’s important to note that while these thread types and sizes are commonly used, there may be other proprietary or industry-specific thread types and sizes depending on the manufacturer or application requirements. When selecting hydraulic couplings, it’s essential to ensure that the chosen couplings match the thread type and size of the corresponding components in the hydraulic system to ensure a proper and secure connection.

Hydraulic coupling manufacturers often provide detailed specifications and technical information about their products, including the available thread types and sizes, to help users select the right couplings for their specific hydraulic system needs.

Can you explain the working principle of a hydraulic coupling and its advantages over other coupling types?

A hydraulic coupling operates based on the principle of hydraulic fluid transmission to transfer power from one shaft to another. It consists of two main parts: the input (driving) element and the output (driven) element, both of which have specially designed vanes or blades submerged in hydraulic fluid.

When the input element rotates, it creates a flow of hydraulic fluid around the vanes. The fluid flow generates pressure on the output element, causing it to start rotating. This pressure difference between the input and output elements facilitates the transfer of torque and power from the driving shaft to the driven shaft.

The working principle of a hydraulic coupling allows it to accommodate misalignments and torsional vibrations. It effectively isolates shock loads, provides overload protection, and dampens vibrations, making it ideal for various industrial applications.

Advantages of hydraulic couplings over other coupling types include:

1. Misalignment Tolerance: Hydraulic couplings can handle significant shaft misalignments, reducing wear and tear on the system and prolonging the life of the components. Other coupling types may have limitations in this regard.
2. Vibration Damping: Hydraulic couplings can effectively dampen vibrations, preventing damage to connected equipment and promoting smoother operation. This advantage is especially critical in precision machinery and applications where vibrations can affect accuracy and performance.
3. Overload Protection: Hydraulic couplings offer built-in overload protection. When the torque exceeds a certain threshold, the fluid coupling slips or disengages, preventing damage to the system and its components. Other coupling types may not have this automatic overload protection.
4. Smooth Start-up: Hydraulic couplings provide gradual power transmission during start-up, which helps minimize shock and stress on the system. This feature is beneficial for systems with heavy loads or delicate components.
5. Quiet Operation: Due to their vibration-damping properties, hydraulic couplings contribute to quieter operation, reducing noise levels in the machinery compared to some other coupling types.
6. Wide Range of Applications: Hydraulic couplings are suitable for a wide range of industrial applications, including heavy machinery, mining equipment, conveyors, pumps, and more. Their adaptability and robust performance make them a popular choice in various industries.

While hydraulic couplings offer many advantages, the selection of the appropriate coupling type ultimately depends on the specific requirements of the application, such as torque, speed, misalignment, and environmental conditions. Properly choosing and maintaining the coupling can significantly improve the efficiency, reliability, and overall performance of fluid power transmission systems in industrial settings.

editor by CX 2023-12-12