China factory Open and Close Stainless Steel Hydraulic Quick Coupler/ Quick Joint/ Quick Release Coupling

Product Description

ISO 7241 B Open And Close Type Stainless steel Hydraulic quick coupler/ quick joint/ quick release coupling


Size Working pressure Flow Rate Burst Pressures
mm inch Mpa(PSI ) I/min( GPM ) MPa(PSI) MPa( CHINAMFG ) MPa(PSI )
3 1/4″ 50(7500) 5(1.3) 200(30000) 280(42000) 200(3000)
6.3 3/8″ 45(6750) 17(4.5) 180(27000) 180(27000) 200(30000)
210 1/2″ 30(4500) 50(13.2) 180(27000) 130(19500) 120(18000)
12.5 3/4″ 35(5250) 75(19.8) 150(22500) 140(21000) 140(21000)
20 1″ 25(3625) 190(50.2) 100(14500) 110(16500) 100(14500)
25 1 1/4″ 30(4500) 270(71.4) 120(18000) 120(18000) 120(18000)
40 1 1/2″ 14(2100) 750(198.4) 60(9000) 56(8400) 56(8400)
50 2″ 9(1350) 1600(423.3) 45(6750) 38(5700) 40(6000)

Part NO. Thread E F G Part NO. Thread  E F G
(mm.) (mm.) (mm.) (in.) (in.) (in.)
KZB-01SF G1/8 48.0 17.0 24.0 KZB-N01 SF NPT1/8 1. ,90 0.68 0.96
KZB-02SF G1/4 57.0 21.0 29.0 KZB-N02SF NPT 1/4 2.26 0.81 1.14
KZB-03SF G3/8 63.0 22.0 36.0 KZB-N03SF NPT3/8 2.49 0.88 1.40
KZB-04SF G1/2 73.0 28.0 45.0 KZB-N04SF NPT1/2 2.87 1.12 1.77
KZB-06SF G3/4 90.0 33.0 54.0 KZB-N06SF NPT3/4 3.56 1.31 2.14
KZB-08SF G1 106.0 41.0 64.0 KZB-N08SF NPT1 4.18 1.62 2.52

Part NO. Thread E  F G Part NO. Thread E F G
(mm.) (mm.) (mm.) (in.) (in.) (in.)
KZB-01PF G1/8 41.0 14.0 17.0 KZB-N01PF NPT 1/8 1.61 0.56 0.65
KZB-02PF G1/4 35.0 19.0 22.0 KZB-N02PF NPT 1/4 1.39 0.75 0.87
KZB-03PF G3/8 38.0 22.0 26.0 KZB-N03PF NPT3/8 1.50 0.88 1.01
KZB-04PF G1/2 44.0 28.0 33.0 KZB-N04PF NPT1/2 1.75 1.12 1.30
KZB-06PF G3/4 55.0 35.0 40.0 KZB-N06PF NPT3/4 2.16 1.38 1.59
KZB-08PF G1 74.0 41. .0 48.0 KZB-N08PF NPT1 2.91 1,62 1.88

Pre-sale service:

*We provide presales in our first cooperation, make clear your situation and give you some advice, you can making investment budget, manufacturing, planing, so that customers can make a reasonable plan with less cost.
Stage 1st: Let’s be honest with each other and make clear the situation of each customer first, then we can give best advice, because we’re over 20 years experience in hydraulic components.
Stage 2st: I will give the details to each customer for reference, including the dimension, performance, quality and price level. 
Stage 3st: We can compare the products 1 by one, then confirm the reasonable products with best price.

In-sale service:
Stage 1st: Once we receive the order list, we will confirm the exact model and quantity 1 by one, then place the order list to each factory.
Stage 2st: We will tracking the production progress and quality, check the exact model and quantity 1 by 1 before delivering. Because we’re exporting agent for factories, so our leading time is more shorter, quality tracking is more strict.
And you can buy the all hydraulic components from our company, because we’re professional in whole hydraulic components, not only for some products like factories.
Stage 3st: Lowest sea freight cost and best service. We’re cooperating with our forwarders over 8 years, so we can get best price and service for our each customer.

After-sale service:
After-sale service are most important in each business, we will do the below things in each order:
Stage 1st: Tracking the shipment and inform the customer before the Arrival Date.
Stage 2st: Check the goods together with our customers and tracking the quality during the use condition.
Stage 3st: We will charge all questions if you buy from me, because reputation is most important in exporting business.
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hydraulic coupling

Are there specialized hydraulic couplings for high-pressure or high-flow applications?

Yes, there are specialized hydraulic couplings designed to meet the demands of high-pressure and high-flow applications. These specialized couplings are engineered to handle the increased loads, pressures, and flow rates typically encountered in industrial settings where heavy-duty equipment and machinery are used. Here are some types of hydraulic couplings commonly used in such applications:

  • High-Pressure Hydraulic Couplings: High-pressure hydraulic couplings are constructed with robust materials and advanced sealing technologies to withstand extreme pressure levels. They are commonly used in hydraulic systems that operate at pressures exceeding standard hydraulic system limits. These couplings ensure reliable power transmission and prevent leakage or failure under high-pressure conditions.
  • Quick-Disconnect Couplings: Quick-disconnect couplings, also known as quick-release or quick-connect couplings, are designed for rapid and efficient connection and disconnection of hydraulic lines. They are prevalent in high-flow applications where frequent connections and disconnections are necessary, such as in construction equipment, agricultural machinery, and manufacturing processes.
  • Multi-Couplings: Multi-couplings allow the simultaneous connection of multiple hydraulic lines with a single motion. These couplings are suitable for applications with complex hydraulic circuits, such as material handling systems and mobile hydraulics. They simplify the connection process and minimize downtime during equipment setup or maintenance.
  • High-Flow Hydraulic Couplings: High-flow hydraulic couplings are designed to accommodate large volumetric flow rates in hydraulic systems. They feature larger passageways and flow channels to reduce pressure drop and ensure efficient fluid transfer in applications like heavy machinery, material handling, and large-scale industrial processes.
  • Flush Face Couplings: Flush face couplings provide a leak-free connection when connected or disconnected. They are suitable for high-pressure applications where minimizing fluid loss during connection and disconnection is critical for safety and environmental reasons.
  • Flat Face Couplings: Flat face couplings are ideal for high-pressure applications where cleanliness and contamination control are essential. Their flat mating surfaces prevent trapping debris during connection, making them suitable for construction equipment, mining machinery, and other rugged applications.
  • High-Temperature Hydraulic Couplings: High-temperature hydraulic couplings are designed to operate in extreme temperature environments, such as those encountered in hot industrial processes or near machinery generating significant heat. They use specialized seals and materials that can withstand elevated temperatures without compromising performance.

Specialized hydraulic couplings are engineered to handle the unique challenges posed by high-pressure or high-flow applications, ensuring safe, efficient, and reliable operation in demanding industrial environments. When selecting a hydraulic coupling for such applications, it’s crucial to consider factors like the specific pressure and flow requirements, environmental conditions, compatibility with the hydraulic fluid, and the overall system design to achieve optimal performance and safety.

hydraulic coupling

What are some real-world examples of successful hydraulic coupling installations and their benefits?

Hydraulic couplings have been successfully implemented in various real-world applications, offering significant benefits in terms of performance, efficiency, and reliability. Here are some examples of successful hydraulic coupling installations and the advantages they provided:

  • Construction Equipment: In the construction industry, hydraulic couplings are extensively used in excavators, loaders, bulldozers, and cranes. The flexibility and high torque transmission capability of hydraulic couplings ensure smooth and precise movements of heavy machinery, improving productivity and reducing wear on mechanical components. Additionally, the leak-free connections in hydraulic systems prevent fluid loss and environmental contamination.
  • Industrial Manufacturing: In manufacturing plants, hydraulic couplings are commonly found in various equipment like hydraulic presses, injection molding machines, and metal forming machinery. The instant response and controllability of hydraulic systems, enabled by high-quality couplings, allow precise positioning and repeatable operations, ensuring consistent product quality and reducing material waste.
  • Agricultural Machinery: Hydraulic couplings play a vital role in agricultural machinery, such as tractors, harvesters, and irrigation systems. The ability to handle varying loads and pressures in hydraulic couplings ensures efficient operation in different farming tasks. Moreover, the robustness and resistance to environmental factors contribute to the longevity and reliability of the agricultural equipment.
  • Mobile Equipment: Mobile hydraulic applications, including waste collection trucks, fire trucks, and utility service vehicles, benefit from hydraulic couplings’ compact design and versatility. Hydraulic systems with the right couplings offer precise control, even in confined spaces, making them suitable for diverse mobile operations.
  • Material Handling: Hydraulic couplings are integral to material handling equipment like forklifts, conveyor systems, and pallet stackers. The smooth acceleration and deceleration provided by hydraulic couplings improve safety and handling efficiency, allowing operators to maneuver heavy loads with ease.
  • Offshore and Marine: In offshore and marine applications, hydraulic couplings are used in cranes, winches, and other systems. The hermetically sealed magnetic couplings, for instance, prevent fluid leakage in critical marine environments, reducing maintenance costs and minimizing the risk of contamination in sensitive marine ecosystems.

The benefits of these successful hydraulic coupling installations include:

  • Improved Performance: Hydraulic couplings enable precise control and efficient power transmission, resulting in improved equipment performance and productivity.
  • Energy Efficiency: Hydraulic couplings with reduced pressure losses and optimized fluid flow contribute to energy savings, making hydraulic systems more environmentally friendly and cost-effective.
  • Enhanced Safety: The reliability and leak-free operation of hydraulic couplings increase operational safety, reducing the risk of accidents and equipment failures.
  • Extended Equipment Lifespan: Properly selected and maintained hydraulic couplings contribute to the longevity of hydraulic systems, reducing downtime and maintenance costs.
  • Environmental Protection: Hydraulic couplings, especially those with non-leak designs, help prevent fluid spills and reduce the impact of hydraulic systems on the environment.

These real-world examples illustrate the versatility and advantages of hydraulic couplings across different industries. The proper selection and installation of hydraulic couplings can significantly enhance the performance, efficiency, and reliability of various hydraulic systems, delivering long-term benefits for businesses and end-users alike.

hydraulic coupling

How do you select the appropriate hydraulic coupling for specific fluid handling needs?

Selecting the right hydraulic coupling for specific fluid handling needs involves considering several critical factors to ensure optimal performance and reliability. Here’s a step-by-step guide to help you make an informed choice:

  1. Fluid Type: Identify the type of fluid that the coupling will handle. Different fluids have varying viscosities and chemical properties, which can impact the compatibility and material selection for the coupling.
  2. Operating Pressure and Temperature: Determine the maximum operating pressure and temperature that the coupling will experience. Ensure that the selected coupling is rated to handle the expected pressure and temperature levels without failure or deformation.
  3. Torque Requirements: Calculate the required torque capacity based on the power transmission needs of your system. Choose a coupling that can handle the anticipated torque while considering safety factors.
  4. Misalignment Tolerance: Evaluate the potential misalignments that may occur between the shafts in your system. Choose a coupling that offers sufficient misalignment tolerance to accommodate these variations without imposing excessive stress on the equipment.
  5. Vibration and Shock: Consider the level of vibration and shock the coupling will experience during operation. Select a coupling that can dampen vibrations and absorb shocks to protect the system components and ensure stable performance.
  6. Installation and Maintenance: Assess the ease of installation and maintenance requirements of the coupling. A well-designed coupling should be easy to install, inspect, and maintain, reducing downtime and maintenance costs.
  7. Environmental Factors: Take into account the environmental conditions in which the coupling will operate. Factors such as exposure to moisture, chemicals, dust, or extreme temperatures may affect the choice of coupling materials and coatings.
  8. Space Constraints: Consider the available space for installing the coupling. Some applications may have limited space, necessitating the use of compact or low-profile couplings.
  9. Coupling Type: Based on the above considerations, choose the most suitable coupling type for your specific fluid handling needs. Consider options such as jaw couplings, disc couplings, fluid couplings, gear couplings, or other specialized couplings based on your application requirements.

It’s essential to consult with coupling manufacturers or industry experts if you have specific or challenging application requirements. They can provide valuable insights and recommendations to ensure you select the right hydraulic coupling that meets your fluid handling needs and maximizes the efficiency and reliability of your system.

China factory Open and Close Stainless Steel Hydraulic Quick Coupler/ Quick Joint/ Quick Release Coupling  China factory Open and Close Stainless Steel Hydraulic Quick Coupler/ Quick Joint/ Quick Release Coupling
editor by CX 2024-02-04