China Standard Gld-19X24.5 Aluminum Alloy Short Double Diaphragm Clamping Coupling

Product Description

GLD-19X24.5 Aluminum alloy short double diaphragm clamping coupling

Dimensions of GLD-19X24.5 Aluminum alloy short double diaphragm clamping coupling

model parameter common bore diameter d1,d2 ΦD L LF LP d3 S F M tightening screw torque
GLD-19X24.5 3,4,5,6,6.35,7,8 Φ19 24.5 91 2.7 Φ9 1.8 3.3 M2.5 1
GLD-26X30 5,6,6.35,7,8,9,9.525,10,11,12,14 Φ26 30 1165 3.6 Φ12.5 2.6 3.9 M3 1.5
GLD-32X38 6,6.35,7,8,9,9,9.525,10,12,12.7,14,15 Φ32 38 1225 6.5 Φ15 3.5 3.85 M3 1.5
GLD-34X38 6,6.35,7,8,9,9.525,10,11,12,12.7,14,15 Φ34 38 1225 6.5 Φ16 3.5 3.85 M3 1.5
GLD-39X47 6,8,9,9.525,10,11,12.7,14,15,16,17,18,19 Φ39 47 149 8.5 Φ19.3 4.5 5 M4 2.5
GLD-44X47 6,8,9,9.525,10,11,12,12.7,14,15,16,17,18,19,20,22 Φ44 47 149 8.1 Φ22.5 4.5 5 M4 2.5
GLD-56X57 12,14,15,16,17,18,19,20,22,24,25,28,30,32 Φ56 57 19.75 6.5 Φ32.5 5.5 6.4 M5 7
GLD-68X68 16,17,18,19,20,22,24,25,28,30,30,35,38 Φ68 68 2335 8.7 Φ38.3 6.3 7.7 M6 12
GLD-82X87 17,18,19,20,22,24,25,28,30,32,35,38,40,42 Φ82 87 30 11 Φ45.5 8 9.7 M8 20

model parameter Rated torque
allowable eccentricity
allowable deflection angle
allowable axial deviation
maximum speed
static torsional stiffness
moment of inertia
Material of shaft sleeve Material of shrapnel surface treatment weight
GLD-19X24.5 1 0.12 1.5 ±0.18 10000 8.19×10-4 170 High strength aluminum alloy SUS304
Spring steel
Anodizing treatment 13.6
GLD-26X30 1.5 0.15 1.5 ±0.3 10000 2.7×10-4 820 32
GLD-32X38 3 0.17 1.5 ±0.36 10000 1.0×10-4 1860 58
GLD-34X38 3 0.17 1.5 ±0.36 10000 1.1×10-4 1860 71
GLD-39X47 6 0.22 1.5 ±0.45 10000 2.7×10-4 2860 110
GLD-44X47 9 0.22 1.5 ±0.54 10000 3.4×10-4 3300 134
GLD-56X57 25 0.27 1.5 ±0.72 10000 1.14×10-4 9480 298
GLD-68X68 60 0.31 1.5 ±0.8 10000 1.8×10-4 19000 472
GLD-82X87 100 0.55 1.5 ±0.8 10000 2.25×10-4 28450 983


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diaphragm coupling

Can Diaphragm Couplings Operate in High-Temperature or Corrosive Environments?

Yes, diaphragm couplings can be designed and manufactured to operate in high-temperature or corrosive environments, depending on the materials used in their construction. Here’s how diaphragm couplings can handle these challenging conditions:

High-Temperature Environments:

For applications involving high temperatures, manufacturers can use heat-resistant materials for the diaphragm and other coupling components. Some common high-temperature materials include:

  • Stainless Steel Alloys: Certain stainless steel alloys, such as Inconel or Hastelloy, are known for their excellent high-temperature properties. These alloys can withstand elevated temperatures without significant deformation or loss of strength.
  • Titanium: Titanium is another material that offers good heat resistance. It is lightweight, strong, and can operate at elevated temperatures, making it suitable for certain high-temperature applications.
  • Ceramic Coatings: In some cases, manufacturers apply ceramic coatings to the diaphragm or other components to enhance their heat resistance and protect them from thermal degradation.

By using these high-temperature materials, diaphragm couplings can maintain their performance and integrity in environments with extreme heat, such as steel mills, heat treatment furnaces, and power generation plants.

Corrosive Environments:

Diaphragm couplings can also be designed to withstand corrosive environments by using materials that resist chemical attacks. Some options for corrosive environments include:

  • Corrosion-Resistant Stainless Steel: Certain stainless steel alloys, like 316L or Duplex stainless steel, offer excellent resistance to corrosion from chemicals and corrosive agents.
  • Specialty Coatings: Manufacturers may apply coatings or platings to the coupling components to provide an additional layer of protection against corrosion.
  • Non-Metallic Materials: In some cases, non-metallic materials like PTFE (Teflon) or polypropylene may be used for the diaphragm and other components, as they are highly resistant to chemical corrosion.

By using these corrosion-resistant materials, diaphragm couplings can be used in applications such as chemical processing, wastewater treatment, marine environments, and other situations where exposure to corrosive substances is common.

In summary, diaphragm couplings can be engineered to operate in high-temperature or corrosive environments by selecting appropriate materials that offer the necessary heat resistance and corrosion resistance. When specifying a diaphragm coupling for such applications, it is crucial to consider the specific environmental conditions to ensure the coupling’s long-term performance and reliability.

diaphragm coupling

How Does the Flexibility of Diaphragm Couplings Enhance Their Performance in Challenging Environments?

Diaphragm couplings’ flexibility is a key feature that enhances their performance in challenging environments. The ability to flex and compensate for misalignments provides several advantages, making them well-suited for various industrial applications. Here’s how the flexibility of diaphragm couplings contributes to their enhanced performance:

  • Misalignment Compensation:
  • One of the primary benefits of diaphragm couplings’ flexibility is their ability to accommodate misalignments between the connected shafts. In real-world applications, it is challenging to achieve perfect alignment between shafts due to factors like thermal expansion, shaft deflection, and machine assembly tolerances. Diaphragm couplings can handle axial, angular, and parallel misalignments, ensuring smooth operation even in situations where misalignments may occur during machine operation. By compensating for misalignment, diaphragm couplings reduce stress on the shafts and connected machinery, minimizing the risk of premature wear and failure.

  • Vibration Dampening:
  • The flexibility of diaphragm couplings allows them to absorb and dampen vibrations that can arise during machine operation. Vibrations can be caused by factors like imbalances, load fluctuations, and mechanical resonances. Diaphragm couplings act as a vibration buffer, attenuating vibration transmission from one shaft to another. This dampening effect helps reduce the risk of mechanical resonance, which can lead to increased stresses and premature failure of components. By dampening vibrations, diaphragm couplings contribute to smoother and quieter operation, promoting overall system reliability and longevity.

  • Shock Absorption:
  • In some industrial applications, sudden shocks and impacts can occur due to machine start-ups, load changes, or external forces. The flexibility of diaphragm couplings allows them to absorb and distribute the energy generated by these shocks. By absorbing shock loads, diaphragm couplings protect the connected machinery from damage and prevent potential disruptions in the production process. This shock absorption capability is particularly valuable in applications where equipment encounters frequent and varying shock loads.

  • Temperature Variations:
  • Diaphragm couplings can operate effectively across a wide range of temperatures. The flexibility of the diaphragm allows it to maintain its performance even in high-temperature environments. This versatility makes diaphragm couplings suitable for applications in industries like steel manufacturing, glass production, and petrochemical processing, where high temperatures are common.

Overall, the flexibility of diaphragm couplings is a significant advantage in challenging environments. By compensating for misalignments, dampening vibrations, absorbing shocks, and withstanding temperature variations, diaphragm couplings ensure reliable and efficient power transmission in various industrial settings. Their ability to enhance system performance and protect machinery from adverse conditions makes them a preferred choice in critical applications that demand durability, precision, and resilience.

diaphragm coupling

Can Diaphragm Couplings Accommodate Different Shaft Sizes and Handle High Torque Loads?

Yes, diaphragm couplings are designed to accommodate different shaft sizes and handle high torque loads efficiently. Here’s how they achieve these functionalities:

Accommodating Different Shaft Sizes:

Diaphragm couplings are available in various sizes and configurations, allowing them to accommodate different shaft diameters. The hubs of the coupling can be manufactured with different bore sizes to match the specific diameter of the connected shafts. This versatility makes diaphragm couplings suitable for a wide range of applications, where the shafts may have different sizes.

Handling High Torque Loads:

Despite their flexible design, diaphragm couplings are capable of handling high torque loads. The flexible diaphragm, typically made of high-strength metal, can transmit torque effectively between the shafts without significant power loss. The corrugations or convolutions in the diaphragm contribute to its torsional rigidity, ensuring efficient torque transmission even at high levels of power.

Moreover, the metal diaphragm’s ability to flex and absorb misalignment also helps in distributing the torque evenly, minimizing stress concentrations on the coupling and connected machinery. This feature allows diaphragm couplings to maintain their performance and reliability under demanding conditions with high torque requirements.

In summary, diaphragm couplings can accommodate different shaft sizes by offering a range of hub sizes and configurations. Additionally, they are capable of handling high torque loads efficiently due to the torsional rigidity of the flexible metal diaphragm and its ability to absorb misalignment, ensuring smooth and reliable torque transmission in various mechanical systems.

China Standard Gld-19X24.5 Aluminum Alloy Short Double Diaphragm Clamping Coupling  China Standard Gld-19X24.5 Aluminum Alloy Short Double Diaphragm Clamping Coupling
editor by CX 2024-05-09