Product Description
GSTS-82×68.1 Aluminum alloy single step single diaphragm clamp type coupling
Dimensions of GSTS-82×68.1 Aluminum alloy single step single diaphragm clamp type coupling
| model parameter | common bore diameter d1 | common bore diameter d2 | D | ΦN | L | LF1 | LF | S | M | tightening screw torque (N.M) |
||
| smallest | maximum | smallest | maximum | |||||||||
| GSTS-34×29.9 | 5 | 12 | 5 | 15 | 34 | 21.6 | 29.9 | 12.15 | 14.25 | 3.5 | M3 | 1.5 |
| GSTS-39×34.5 | 6 | 15 | 6 | 19 | 39 | 25 | 34.5 | 15.15 | 14.9 | 4.5 | M4 | 2.5 |
| GSTS-44×34.5 | 6 | 18 | 6 | 22 | 44 | 29.6 | 34.5 | 15.15 | 14.9 | 4.5 | M4 | 2.5 |
| GSTS-56×45.1 | 8 | 24 | 8 | 32 | 56 | 38 | 45.1 | 19.90 | 19.75 | 5.5 | M5 | 7 |
| GSTS-68×53.6 | 10 | 30 | 10 | 38 | 68 | 46 | 53.6 | 24 | 23.35 | 6.3 | M6 | 12 |
| GSTS-82×68.1 | 16 | 38 | 16 | 45 | 82 | 56 | 68.1 | 30.15 | 30 | 8 | M8 | 20 |
| model parameter | Rated torque (N.M)* |
allowable eccentricity (mm)* |
allowable deflection angle (°)* |
allowable axial deviation (mm)* |
maximum speed rpm |
static torsional stiffness (N.M/rad) |
moment of inertia (Kg.M2) |
Material of shaft sleeve | Material of shrapnel | surface treatment | weight (g) |
| GSTS-34×29.9 | 3 | 0.02 | 1 | ±0.20 | 10000 | 2000 | 6.01×10-5 | High strength aluminum alloy | S U S 3 0 4 Spring steel | Anodizing treatment | 38 |
| GSTS-39×34.5 | 6 | 0.02 | 1 | ±0.25 | 10000 | 4500 | 1.49×10-5 | 69 | |||
| GSTS-44×34.5 | 9 | 0.02 | 1 | ±0.30 | 10000 | 5200 | 2.25×10-5 | 84 | |||
| GSTS-56×45.1 | 25 | 0.02 | 1 | ±0.40 | 10000 | 11000 | 7.23×10-5 | 184 | |||
| GSTS-68×53.6 | 60 | 0.02 | 1 | ±0.45 | 10000 | 19000 | 2.02×10-4 | 235 | |||
| GSTS-82×68.1 | 100 | 0.02 | 1 | ±0.55 | 10000 | 22000 | 5.95×10-4 | 598 |
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Materials Used to Manufacture Diaphragm Couplings and Their Impact on Performance
Diaphragm couplings are manufactured using various materials, and the choice of material significantly impacts their performance in different applications. Here are some common materials used in diaphragm couplings and their impact on performance:
- Metallic Alloys:
- High-Temperature Alloys:
- Titanium:
- Elastomers:
- Non-Metallic Materials:
Stainless steel and other high-strength metallic alloys are widely used in diaphragm couplings. These materials offer excellent durability, high torsional stiffness, and resistance to wear and fatigue. They are well-suited for high-torque applications and environments with demanding operating conditions.
In applications where diaphragm couplings are exposed to elevated temperatures, specialized high-temperature alloys like Inconel and Hastelloy are used. These alloys can withstand extreme heat without losing their mechanical properties, making them ideal for use in industries such as steel processing and power generation.
Titanium is favored for its lightweight and excellent corrosion resistance. Diaphragm couplings made from titanium are commonly used in aerospace and marine applications where weight reduction and resistance to corrosive environments are critical.
For certain applications that require vibration dampening and shock absorption, diaphragm couplings can be manufactured with elastomeric materials like rubber or urethane. These materials help reduce transmitted vibrations and can be found in pumps, compressors, and automotive drivetrain systems.
In situations where electrical isolation or non-magnetic properties are necessary, non-metallic materials like PTFE (Teflon) or polypropylene may be used. These materials are also highly resistant to chemical corrosion, making them suitable for certain chemical processing and semiconductor applications.
The choice of material impacts several aspects of diaphragm coupling performance, including:
- Torsional Stiffness: Metallic alloys and high-temperature materials provide high torsional stiffness, ensuring efficient torque transmission and accuracy in motion control applications.
- Corrosion Resistance: The selection of corrosion-resistant materials is crucial in applications where diaphragm couplings are exposed to corrosive environments, such as in marine or chemical industries.
- Temperature Resistance: High-temperature alloys enable diaphragm couplings to operate effectively in environments with elevated temperatures, such as steel processing or power generation plants.
- Weight: Materials like titanium offer lightweight advantages, making diaphragm couplings suitable for aerospace and other weight-sensitive applications.
- Vibration Damping: Elastomeric materials provide excellent vibration dampening properties, reducing vibrations and noise in certain applications.
Manufacturers carefully select the appropriate material based on the specific requirements of the application to ensure optimal performance and reliability of the diaphragm coupling in a wide range of industries.
Design Considerations for Selecting a Diaphragm Coupling for a Specific Application
When choosing a diaphragm coupling for a particular application, several crucial design considerations should be taken into account. Each application has unique requirements, and selecting the right diaphragm coupling can significantly impact the overall performance and reliability of the system. Here are the key design considerations:
- 1. Torque Capacity:
- 2. Misalignment Tolerance:
- 3. Speed and RPM:
- 4. Operating Environment:
- 5. Space Constraints:
- 6. Maintenance Requirements:
- 7. Application-specific Factors:
Determine the maximum torque that the diaphragm coupling will need to transmit in the application. Select a diaphragm coupling with a torque capacity that comfortably exceeds the application’s peak torque requirements. Consider potential torque variations during operation and choose a coupling that can handle the dynamic torque conditions, especially in machines with frequent start-stop cycles or load fluctuations.
Assess the potential misalignment between the connected shafts in the application. Diaphragm couplings are known for their ability to compensate for various types of misalignment, such as axial, angular, and parallel misalignment. Determine the expected misalignment angles and choose a diaphragm coupling with the appropriate misalignment capabilities to ensure smooth operation and minimize stress on the coupling and connected machinery.
Consider the rotational speed and RPM (revolutions per minute) requirements of the application. Diaphragm couplings are suitable for high-speed applications due to their balanced design and ability to dampen vibrations. Ensure that the selected coupling can handle the required RPM without encountering critical speed issues or exceeding its rated limitations.
Evaluate the environmental conditions in which the diaphragm coupling will operate. Consider factors such as temperature, humidity, presence of corrosive substances, and exposure to contaminants. Choose a diaphragm coupling made from materials suitable for the specific operating environment to prevent corrosion and premature wear.
Diaphragm couplings have a compact design, making them suitable for applications with limited space. Consider the available installation space and choose a coupling that fits within the available dimensions while providing the required torque capacity and misalignment compensation.
Assess the maintenance requirements of the diaphragm coupling. Some couplings may require periodic lubrication, while others are maintenance-free. Choose a coupling with maintenance requirements that align with the resources and capabilities of the maintenance team.
Consider any unique factors relevant to the application, such as the presence of shock loads, dynamic balancing requirements, or the need for precision in high-accuracy systems. These specific factors can influence the selection of the most suitable diaphragm coupling for the application.
By carefully considering these design factors, engineers and designers can select the most appropriate diaphragm coupling for a specific application. The right coupling choice will enhance the overall performance, reliability, and service life of the machinery or equipment in which it is employed.
Are There Any Industry Standards or Certifications for Diaphragm Couplings?
Yes, there are industry standards and certifications that apply to diaphragm couplings, ensuring their quality, performance, and safety. Some of the notable standards and certifications include:
- American Petroleum Institute (API) Standards: API provides standards for various equipment and components used in the oil and gas industry. For diaphragm couplings used in oil and gas applications, compliance with API standards ensures that the couplings meet specific requirements and are suitable for use in demanding environments.
- American Gear Manufacturers Association (AGMA) Standards: AGMA sets standards for various types of couplings, including diaphragm couplings. These standards cover design considerations, materials, performance, and safety factors, ensuring that couplings adhere to industry best practices.
- International Organization for Standardization (ISO) Standards: ISO has several standards relevant to couplings in general, which can also apply to diaphragm couplings. ISO standards ensure global consistency in terms of design, manufacturing, and performance criteria.
- European Conformity (CE) Marking: Diaphragm couplings intended for sale within the European Economic Area (EEA) must bear the CE marking, indicating that they comply with relevant European Union (EU) directives, including safety and environmental requirements.
- American National Standards Institute (ANSI) Standards: ANSI sets standards for various industrial equipment, including couplings. ANSI standards provide guidelines for design, materials, and performance, ensuring safe and reliable operation.
- Occupational Safety and Health Administration (OSHA) Compliance: Although not a specific certification for diaphragm couplings, compliance with OSHA regulations is essential to ensure the safety of workers who operate and maintain equipment with diaphragm couplings.
Manufacturers of diaphragm couplings often seek these certifications and comply with relevant industry standards to demonstrate the quality and reliability of their products. Customers and end-users can look for these certifications and standards compliance when selecting diaphragm couplings for their applications, as it provides assurance of the coupling’s performance and adherence to safety requirements.
editor by CX 2024-05-08