China Hot selling Carved Exquisitely Stainless Steel Rigid Internal Thread NPT Full Coupling

Product Description

Product Details

Product Name Female Thread Full Coupling 
Material Stainless steel: 201,TP304,TP316, TP304L, TP316L, 304L, 316L, TP321, TP310S, 904L etc.            
Carbon steel: A105, Q234, Q235, X52, F60,F70, Y60, Y70 etc.
Duplex steel: 2205(S31803), S32205, 2507(S2750),  S3276 etc.
Other special: C70600, 254MO
Connection Male, Female 
Size 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2-1/2″, 3″, 4 ” etc
Standard ASME, ANSI, MSS-SP, GB etc
Application Pipe lines connection of water, steam, air, gas, oil etc
Technics Forged, Casting 

Our Advantages

01. Customization

Get a perfect, custom pipe coupling

 

02. Advanced Technique

Mature and advanced equipment and professional test engineers ensure high quality products

03. Excellent Quality

Real material with uniform wall thickness
Smooth surface
Strong tensile strength
Corrosion resistance
Long-term use

 

  

Appilcation

Transportation

 

About Us

      Founded in 2571, our company, HangZhou Dejia Special Steel Co., Ltd is specialized in producing various products such as elbows, tees, reducers, caps, flanges and valves. We can produce products according to National standard, American standard etc. It’s our feature that we can produce products of any size ad per customers’ special demands.

     Our company CHINAMFG on honesty, continuity and transparency with our clients. We would like to cooperate with global customers and make the good protection project in world market.

    Why choose our company? We features scientific and rational design, advanced production process, quality manufacturing materials,  comprehensive security protection and first-class after-sales service.

 

FAQ

Q: What are your main products?
A: We specialize in producing a wide range of valves, elbows, flanges, Tee, Cross, gaskets etc.

Q: How long is your delivery time?
A:Usually it’s 15-30 days all the best or it’s more than 30 days according to the quantity.

Q: Do you provide samples? Free or charge?
A:Yes, we’d like to offer you samples but you have to cough up dough for shipping.

Q: How do you guarantee the quality of your products?
A: Before mass production, a few products made by our engineers for conduct tests. All products must be checked before shipping.

Q: How about your service?
A: Xihu (West Lake) Dis.g to the concept of ” Service Supremacy”, we have pre-sale service, on-purchase service and after-sales service.

Q: About packing?
A: Depending on the properties of the product, choose its appropriate packaging to protect the item from damage and allow you to purchase at ease.

Q: About color difference?
A:  All products are shot in real objects, and there will be a slight degree of color difference between the real thing and the picture due to the shooting light, the color value bias of the display, and the individual’s understanding of color. Colour is subject to the goods received.

Q: What size can your company produce?
A: We have all the common sizes on the market. In addition, we can also customize according to your needs, whether its size or material.

rigid coupling

Can Rigid Couplings Be Used in Both Horizontal and Vertical Shaft Arrangements?

Yes, rigid couplings can be used in both horizontal and vertical shaft arrangements. Rigid couplings are designed to provide a solid, non-flexible connection between two shafts, making them suitable for various types of shaft orientations.

Horizontal Shaft Arrangements: In horizontal shaft arrangements, the two shafts are positioned parallel to the ground or at a slight incline. Rigid couplings are commonly used in horizontal setups as they efficiently transmit torque and maintain precise alignment between the shafts. The horizontal orientation allows gravity to aid in keeping the coupling elements securely in place.

Vertical Shaft Arrangements: In vertical shaft arrangements, the two shafts are positioned vertically, with one shaft above the other. This type of setup is often found in applications such as pumps, compressors, and some gearboxes. Rigid couplings can also be used in vertical shaft arrangements, but additional considerations must be taken into account:

  • Keyless Design: To accommodate the vertical orientation, some rigid couplings have a keyless design. Traditional keyed couplings may experience issues with keyway shear due to the force of gravity on the key, especially in overhung load situations.
  • Set Screw Tightening: When installing rigid couplings in vertical shaft arrangements, set screws must be tightened securely to prevent any axial movement during operation. Locking compound can also be used to provide additional security.
  • Thrust Load Considerations: Vertical shaft arrangements may generate thrust loads due to the weight of the equipment and components. Rigid couplings should be chosen or designed to handle these thrust loads to prevent axial displacement of the shafts.

It’s essential to select a rigid coupling that is suitable for the specific shaft orientation and operating conditions. Proper installation and alignment are critical for both horizontal and vertical shaft arrangements to ensure the rigid coupling’s optimal performance and reliability.

rigid coupling

Factors to Consider When Choosing a Rigid Coupling for a Specific System

Choosing the right rigid coupling for a specific system is crucial to ensure proper functionality and reliable performance. Several factors should be considered when making this decision:

1. Shaft Size and Compatibility: The most fundamental factor is ensuring that the rigid coupling is compatible with the shaft sizes of the connected components. The coupling should have the appropriate bore size and keyway dimensions to fit securely onto the shafts.

2. Operating Torque: Consider the torque requirements of the application. The rigid coupling should have a torque rating that exceeds the maximum torque expected during operation to prevent failures and ensure safety.

3. Speed: Determine the rotational speed (RPM) of the connected shafts. Rigid couplings have maximum RPM limits, and the selected coupling should be capable of handling the system’s operating speed.

4. Misalignment Tolerance: Assess the potential misalignment between the shafts. Rigid couplings provide no flexibility, so the system must have minimal misalignment to prevent excessive forces on the components.

5. Temperature and Environment: Consider the operating temperature range and the environment where the coupling will be used. Ensure the chosen material can withstand the temperature and any corrosive or harsh conditions present.

6. Space Limitations: Evaluate the available space for the coupling. Rigid couplings have a compact design, but ensure that there is enough clearance for installation and maintenance.

7. Backlash and Torsional Stiffness: In some precision systems, backlash must be minimized to maintain accurate positioning. Additionally, the torsional stiffness of the coupling can impact system response and stability.

8. Keyway or Keyless Design: Decide between a coupling with a keyway or a keyless design based on the specific application requirements and ease of installation.

9. Material Selection: Consider the material properties of the rigid coupling. Common materials include steel, stainless steel, and aluminum, each with its own advantages and limitations.

10. Maintenance: Determine the maintenance requirements of the coupling. Some couplings may need periodic lubrication or inspections, while others may be maintenance-free.

11. Cost: While cost should not be the sole consideration, it is essential to evaluate the cost-effectiveness of the coupling, taking into account its performance and longevity.

By carefully considering these factors, you can select the most suitable rigid coupling for your specific system, ensuring optimal performance, and longevity of your mechanical setup.

rigid coupling

Limitations and Disadvantages of Using Rigid Couplings:

Rigid couplings offer several advantages in providing a strong and direct connection between shafts, but they also have certain limitations and disadvantages that should be considered in certain applications:

  • No Misalignment Compensation: Rigid couplings are designed to provide a fixed connection with no allowance for misalignment between shafts. As a result, any misalignment, even if slight, can lead to increased stress on connected components and cause premature wear or failure.
  • Transmit Shock and Vibration: Rigid couplings do not have any damping or vibration-absorbing properties, which means they can transmit shock and vibration directly from one shaft to another. In high-speed or heavy-duty applications, this can lead to increased wear on bearings and other components.
  • No Torque Compensation: Unlike flexible couplings, rigid couplings cannot compensate for torque fluctuations or angular displacement between shafts. This lack of flexibility may not be suitable for systems with varying loads or torque requirements.
  • Higher Stress Concentration: Rigid couplings can create higher stress concentration at the points of connection due to their inflexibility. This can be a concern in applications with high torque or when using materials with lower fatigue strength.
  • More Challenging Installation: Rigid couplings require precise alignment during installation, which can be more challenging and time-consuming compared to flexible couplings that can tolerate some misalignment.
  • Increased Wear: The absence of misalignment compensation and vibration absorption can lead to increased wear on connected components, such as bearings, shafts, and seals.
  • Not Suitable for High Misalignment: While some rigid couplings have limited ability to accommodate minor misalignment, they are not suitable for applications with significant misalignment, which could lead to premature failure.

Despite these limitations, rigid couplings are still widely used in many applications where precise alignment and a strong, permanent connection are required. However, in systems with significant misalignment, vibration, or shock loads, flexible couplings may be a more suitable choice to protect the connected components and improve overall system performance and longevity.

China Hot selling Carved Exquisitely Stainless Steel Rigid Internal Thread NPT Full Coupling  China Hot selling Carved Exquisitely Stainless Steel Rigid Internal Thread NPT Full Coupling
editor by CX 2023-10-11

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