China OEM Lsq-FF Close Type Hydraulic Quick Coupling

Product Description

SongQiao LSQ-FF Series couplings are widely used in the public utility market where hydraulic oil spillage can constitute a serious safety hazard, particularly in overhead bucket hoists that are used for maintenance of high-voltage power transmission lines.These couplings are also used for quick change of hydraulic Tools in construction, railway maintenance and mining industries. The ease of cleaning makes them ideal for use in these types of hostile environments.
New valve design. it can resistance damage from high flow and the pressure of impulse that providing advanced performance.
Sleeve locking mechanism is engaged by rotating sleeve after connection. It prevents accidental disconnection when, The coupling is dragged along the ground.
Sleeve mechanism is designed to prevent dirt from entering the internal the internal mechanism and thus causing faulty operation when connecting or disconnecting. The sleeve covers the retaining ring and also incorporates a dust seal in the spring area.
Steel construction, zinc plated with yellow chromate finish.  hardened nipples and sleeves and CHINAMFG barstock construction for maximum resistance to damage from hydraulic and mechanical shock.
This Anti Blowout Nitrile/PTFE bonded seal is designed to prevent blow-out or damage during severe service conditions.
Durable ball-locking mechanism assures reliable connections ,every time. A large number of locking balls distributes the work load evenly while providing alignment and swiveling action to reduce hose torque and prolong hose life. CAUTION: These products are not not to be used as swivels. Rotation under pressure will result in excessive and premature wear.
LSQ-FF Series couplings employ flush valving when connecting or disconnecting. This means that the valves are mated together so that only small amounts of fluid can be lost during disconnection or air inclusion during reconnection.
New chrome plating treatment provides advanced anti-rust performance.
LSQ-FF series conforms to standard of ISO16571.
Compatible with CHINAMFG FE Series,FFSeries,STUCCHIA8008 Series, AEROQUIP FD89 Series and HANSENQA2900 Series.

ISO PART NO LS D HEX1 A T
6.3 LSQ-FF-02SF 58.2 28 20 14 G1/4 NPT1/4
10 LSQ-FF-03SF 68.2 32 24 14 G3/8 NPT3/8
10 LSQ-FF-03SF 72.2 32 27 18 G1/2 NPT1/2
12.5 LSQ-FF-04SF 75 38 32 18 G1/2 NPT1/2
12.5 LSQ-FF-04SF 79 38 36 22 G3/4 NPT3/4
16 LSQ-FF-06SF 80 42 36 22 G3/4 NPT3/4
19 LSQ-FF-08SF 99.8 48 41 22 G3/4 NPT3/4
19 LSQ-FF-08SF 99.8 48 41 23.5 G1    NPT1
25 LSQ-FF-10SF 111.5 56 55 24 G1-1/4 NPT1-1/4
LSQ-FF-12SF 150 79.5 65 30 G1-1/2 NPT1-1/2
LSQ-FF-16SF 167 98.5 85 31 G2    NPT2

ISO PART NO LP d C HEX2 A T
6.3 LSQ-FF-02PF 49.2  16.1 15.2 20 14 G1/4 NPT1/4
10 LSQ-FF-03PF 55.8  19.7 19.5 24 14 G3/8 NPT3/8
10 LSQ-FF-03PF 59.8  19.7 19.5 27 18 G1/2 NPT1/2
12.5 LSQ-FF-04PF 72  24.5 21.6 32 18 G1/2 NPT1/2
12.5 LSQ-FF-04PF 76  24.5 21.6 36 22 G3/4 NPT3/4
16 LSQ-FF-06PF 75.5  27 21.6 36 22 G3/4 NPT3/4
19 LSQ-FF-08PF 93.8  30 29 41 22 G3/4 NPT3/4
19 LSQ-FF-08PF 93.8  30 29 41 23.5 G1    NPT1
25 LSQ-FF-10PF  90  36 34 55 24 G1-1/4 NPT1-1/4
LSQ-FF-12PF  112  57 38 65 30 G1-1/2 NPT1-1/2
LSQ-FF-16PF  123.9  73 40.5 75 31 G2    NPT2

ISO PART NO L D HEX1 HEX2 T
6.3 LSQ-FF-02 96.2  28  20 20 G1/4 NPT1/4
10 LSQ-FF-03 108.4  32 24  24 G3/8 NPT3/8
10 LSQ-FF-03 116.4  32  27  27 G1/2 NPT1/2
12.5 LSQ-FF-04 129.3  38  32  32 G1/2 NPT1/2
12.5 LSQ-FF-04 137.3  38  36  36 G3/4 NPT3/4
16 LSQ-FF-06 138  42  36  36 G3/4 NPT3/4
19 LSQ-FF-08 172.1  48  41  41 G3/4 NPT3/4
19 LSQ-FF-08 172.1  48  41  41 G1    NPT1
25 LSQ-FF-10 178  56  55  55 G1-1/4 NPT1-1/4
LSQ-FF-12 233.4  79.5  65  65 G1-1/2 NPT1-1/2
LSQ-FF-16 251.7  98.5  85  75 G2    NPT2

hydraulic coupling

Can hydraulic couplings be used in applications involving corrosive or aggressive fluids?

Yes, hydraulic couplings can be used in applications involving corrosive or aggressive fluids, but the choice of materials and design considerations is critical to ensure compatibility and long-term performance. Corrosive fluids, such as acids, alkalis, and certain chemicals, can pose significant challenges to hydraulic systems. Here are some key factors to consider when using hydraulic couplings in such applications:

  • Material Selection: Choose hydraulic couplings made from materials that are resistant to the specific corrosive fluid being handled. Stainless steel, certain alloys, and corrosion-resistant coatings are common choices for couplings in corrosive environments.
  • Sealing Solutions: Ensure that the couplings have effective sealing solutions to prevent fluid leakage. High-quality seals and gaskets that are compatible with the corrosive fluid are essential to maintain system integrity.
  • Chemical Compatibility: Thoroughly assess the chemical compatibility between the hydraulic fluid and the coupling materials. Consider the fluid’s temperature, concentration, and potential reactions with the coupling components.
  • Special Coatings: In some cases, using hydraulic couplings with specialized coatings or treatments can enhance their resistance to corrosion and aggressive fluids.
  • Regular Inspection and Maintenance: Implement a stringent inspection and maintenance schedule to monitor the condition of the hydraulic couplings and detect any signs of corrosion or degradation. Promptly replace any damaged or worn couplings to prevent fluid leaks and system failure.
  • Fluid Contamination: Corrosive fluids can lead to the formation of contaminants in the hydraulic system. Implement effective filtration and contamination control measures to prevent particle buildup and system damage.
  • Operating Conditions: Consider the temperature, pressure, and flow conditions of the system, as these factors can impact the corrosion resistance of the couplings and the overall system performance.

While hydraulic couplings can be used in corrosive or aggressive fluid applications, it is essential to consult with coupling manufacturers or fluid system experts to ensure proper material selection and system design. They can provide guidance on selecting the most suitable hydraulic couplings and recommend additional measures to protect the system from the adverse effects of corrosive fluids.

By employing the right materials, adopting proper maintenance practices, and taking the necessary precautions, hydraulic couplings can effectively function in applications involving corrosive or aggressive fluids, providing reliable and safe fluid power transmission.

hydraulic coupling

Where can I find reputable suppliers or manufacturers of hydraulic couplings for my specific hydraulic system requirements?

Finding reputable suppliers or manufacturers of hydraulic couplings is essential to ensure the quality, performance, and compatibility of the couplings with your specific hydraulic system requirements. Here are some methods and sources to help you locate reliable hydraulic coupling suppliers:

  1. Online Directories and Marketplaces: Utilize online industrial directories and marketplaces that list hydraulic coupling manufacturers and suppliers. Websites like ThomasNet, Alibaba, and IndustryNet can provide comprehensive listings with company profiles and product offerings.
  2. Trade Shows and Exhibitions: Attend trade shows and exhibitions focused on fluid power and hydraulic components. These events offer an opportunity to meet suppliers in person, see product demonstrations, and discuss your specific requirements directly with the manufacturers.
  3. Industry Associations: Many industry associations, such as the International Fluid Power Society (IFPS) or the National Fluid Power Association (NFPA), maintain directories of member companies that offer hydraulic couplings and related products. These associations often have strict membership criteria, which can serve as a marker of reputable companies.
  4. Online Search Engines: Conduct a targeted search using online search engines. Use specific keywords related to your hydraulic system requirements, such as “high-pressure hydraulic couplings” or “quick-connect hydraulic couplings,” along with your location to find local suppliers.
  5. Manufacturer Websites: Visit the websites of well-known hydraulic coupling manufacturers. Reputable manufacturers often provide detailed product information, specifications, and contact details, making it easier to assess their suitability for your requirements.
  6. Customer Reviews and Testimonials: Look for customer reviews and testimonials to gauge the reputation and customer satisfaction of potential hydraulic coupling suppliers. Positive feedback from other customers can be an indicator of reliable and reputable manufacturers.

When evaluating hydraulic coupling suppliers, consider the following factors to ensure they meet your specific requirements:

  • Product Range: Check if the supplier offers a diverse range of hydraulic couplings, including the types, sizes, and configurations that match your needs.
  • Quality Assurance: Inquire about the supplier’s quality control processes and certifications to ensure their hydraulic couplings meet industry standards and regulatory requirements.
  • Customization Options: If your hydraulic system requires specialized couplings, confirm if the supplier can provide customization options to meet your unique specifications.
  • Technical Support: Assess the supplier’s technical expertise and support capabilities to assist with product selection, installation, and troubleshooting.
  • Pricing and Delivery: Obtain competitive pricing and inquire about delivery lead times to ensure the supplier can meet your budget and project timelines.
  • After-Sales Service: Inquire about the supplier’s after-sales service, warranty policies, and availability of spare parts to ensure long-term support for your hydraulic couplings.

By conducting thorough research and due diligence, you can find reputable suppliers or manufacturers of hydraulic couplings that align with your specific hydraulic system requirements. Working with reliable suppliers will help you obtain high-quality couplings that contribute to the efficient and reliable operation of your hydraulic system.

hydraulic coupling

What are the key design considerations when using hydraulic couplings in hydraulic systems?

Designing hydraulic systems with hydraulic couplings requires careful consideration of various factors to ensure optimal performance, reliability, and safety. Here are the key design considerations:

  1. Fluid Compatibility: Select hydraulic couplings made from materials compatible with the hydraulic fluid used in the system. Incompatible materials may lead to chemical reactions, corrosion, or degradation of the coupling, affecting its performance and service life.
  2. Pressure Rating: Ensure that the hydraulic coupling has an adequate pressure rating to handle the maximum operating pressure of the hydraulic system. Using a coupling with a lower pressure rating may lead to failure and system leaks.
  3. Temperature Range: Consider the temperature range in which the hydraulic system will operate. Choose a hydraulic coupling that can withstand the minimum and maximum temperatures without deformation or loss of performance.
  4. Torsional Stiffness: Evaluate the required torsional stiffness of the coupling based on the system’s torque demands. A coupling with insufficient torsional stiffness may lead to excessive vibrations and decreased system accuracy.
  5. Misalignment Compensation: Hydraulic couplings should be able to accommodate misalignments between the driving and driven shafts. Consider the angular, radial, and axial misalignment capacity of the coupling to prevent excessive stress on the system components.
  6. Speed and Torque Requirements: Determine the speed and torque demands of the hydraulic system. Choose a coupling that can handle the required torque and rotational speed to ensure efficient power transmission.
  7. Environmental Conditions: Factor in the environmental conditions the hydraulic system will be exposed to, such as moisture, dust, chemicals, or extreme temperatures. Select a coupling with appropriate coatings or materials to withstand these conditions.
  8. Overload Protection: Consider whether overload protection is necessary for the hydraulic system. Some hydraulic couplings offer built-in overload protection features, which can be beneficial in preventing damage during unexpected load spikes.
  9. Installation and Maintenance: Choose a hydraulic coupling that is easy to install and maintain. Accessible coupling designs simplify inspection and servicing, reducing downtime and maintenance costs.
  10. Size and Weight: Consider the available space and weight constraints in the system. Opt for a hydraulic coupling that fits within the available space and meets the weight limitations without compromising performance.

By carefully considering these design considerations and selecting the appropriate hydraulic coupling, designers can ensure a reliable and efficient hydraulic system that meets the specific requirements of the application. Regular maintenance and proper coupling installation also play a crucial role in prolonging the life and performance of the hydraulic system.

China OEM Lsq-FF Close Type Hydraulic Quick Coupling  China OEM Lsq-FF Close Type Hydraulic Quick Coupling
editor by CX 2023-11-07

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