Product Description
Product Introduction
Pin lug couplings
Aluminum with brass nut and nbr washers
SIZE:, 2″, 2 1/2″, 3″, 4″,6″
Assembled with fire hose or PVC layflat hose
| PIN LUG COUPLING | |
| SIZE | Type |
| 2-1/2″ | Four ears |
| 3″ | |
| 4″ | |
| 6″ | |
| PIN LUG COUPLING | |
| SIZE | Type |
| 1″ | Two ears |
| 1-1/4″ | |
| 1-1/2″ | |
| 2″ | |
Company Profile
HangZhou CHINAMFG Co. LTD. is a leading manufacturer and exporter of fire hose, coupling and other fire-fighting equipments in China.
Our main products: rubber CHINAMFG fire hose, CHINAMFG CHINAMFG fire hose, PVC CHINAMFG fire hose, PU CHINAMFG fire hose. colorful fire hose, PVC/Nitrile fire hose, single jacket fire hose, double jacket fire hose and PU layflat hose. Our hose is for marine, mill, forest, fire-fighting, mine and construction.
Meanwhile, we have good cooperation with other famous international company in fire-fighting field. In 1999, we have approved ISO9000 certificate. We are also a member of FPA, CFPA.
You may be assured that we will apply you high quality and low cost products. In case you need more information on corporation and our products, please do not hesitate to contact us and we shall be very pleased to reply any of your inquiries at any time.
Workshop
Package And Shipping
Products wil be perfected protected by opp bag/Reinforced carton/stretch film/pallets. Any customized package will be acceptable.We accept ship by express including DHL/FEDEX/TNT, or ship by sea and air. Mostly we ship by sea. shipping time is within 25days by sea. Will advise exact delivery when you purchase.
Certification
Our service
Step 1:
When you are looking for something, pls send your inquiry with details and pics to me at Made in China. I will reply at the first time(faster than other suppliers) and provide good price(at least 10% lower than others). If you are interested in our products online, contact me directly with link attached.
Step 2:
Before purchase bulk order, sample can be available and free. I will advise everything you want to know about the PO, delivery, price, shipping method, package, payment…Production will be going when everything is confirmed by you.
Step 3:
After PO received, we will send you PI and you need to pay it firstly, then we will arrange bulk production, during the period, we will send you some pics when pre-product sample is finished.
Step 4:
Will inform you when shipping and send you pics when all goods are ready. As a professional supplier, will follow all the way until you receive the goods. Of course, inspection report will be provided. If needed, we can send products to SGS for testing.
FAQ
1. Where is your company and how many people there? How about your company?
We are based in HangZhou, China, start from 1998, sell to more than 20countries. There are totally 200-300 people in our office and factory.
2. How can you guarantee quality?
We will confirm everything before production, before shipping, inspection reported will be provided.
3. What do you provide?
We provide fire hose, coupling and fire equipments. irrigation fittings.
4. Why should we choose you?
We are the top fire hose manufacturers in Asia, we have more than 20 years experience of this industry. You will always get my quick response and good price. You will save money at the most degree from me.
What’s more, quick delivery, some free sample will be acceptable.
| After-sales Service: | Excellent |
|---|---|
| Warranty: | All Life |
| Connection: | Connection |
| Structure: | Different |
| Flexible or Rigid: | Flexible |
| Material: | Aluminum |
| Samples: |
US$ 2/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
How Does a Pin Coupling Protect Connected Equipment from Shock Loads and Vibrations?
Pin couplings are designed to provide excellent protection to connected equipment from shock loads and vibrations, ensuring the smooth and reliable operation of the machinery. The unique features of pin couplings contribute to their ability to absorb and dampen shock loads and vibrations effectively:
- Flexibility: Pin couplings possess a certain degree of flexibility due to the presence of movable pins. When subjected to sudden shock loads or vibrations, the pins can flex and move slightly, absorbing the impact and preventing it from transmitting directly to the connected equipment. This flexibility helps in reducing stress and minimizing the risk of damage to the machinery.
- Torsional Compliance: The pin coupling’s design allows for a certain amount of torsional compliance. This means that when the connected shafts experience slight misalignments or angular displacements, the pin coupling can compensate for these variations without causing additional stress or vibration in the system. This feature ensures that the machinery remains in proper alignment even under dynamic conditions, reducing wear and tear.
- Damping Characteristics: The presence of movable pins introduces damping characteristics to the coupling. When vibrations occur in the system, the pins can dampen these oscillations, preventing resonance and the amplification of vibrations. This damping effect improves the overall stability and performance of the machinery.
- Strength and Resilience: High-quality pin couplings are constructed from durable materials with excellent fatigue resistance. This enables the coupling to withstand repeated shock loads and vibrations over an extended period without compromising its integrity. The strength and resilience of the pin coupling contribute to the protection of the connected equipment.
Overall, pin couplings are reliable and versatile components that can effectively protect connected equipment from shock loads and vibrations. Their flexibility, torsional compliance, damping characteristics, and robust construction make them suitable for various industrial applications where shock and vibration mitigation are essential for maintaining the health and longevity of machinery and equipment.
What Industries Commonly Use Pin Couplings for Power Transmission?
Pin couplings are widely used in various industries for power transmission due to their ability to accommodate misalignment and provide reliable torque transmission. Some of the industries where pin couplings are commonly employed include:
- 1. Manufacturing: In manufacturing processes, pin couplings are used in conveyor systems, mixers, agitators, and other machinery to transfer power between motors and driven equipment.
- 2. Pulp and Paper: The pulp and paper industry uses pin couplings in machinery such as pumps, fans, and rotary kilns for continuous power transmission.
- 3. Chemical and Petrochemical: Pin couplings find applications in chemical processing plants, refineries, and petrochemical facilities for various rotating equipment.
- 4. Water and Wastewater: Pin couplings are used in water treatment facilities, pumps, and blowers to transfer power efficiently.
- 5. Steel and Metal Processing: Steel mills and metal processing plants utilize pin couplings in rolling mills, extruders, and other equipment.
- 6. Food and Beverage: Pin couplings are employed in food processing machinery, packaging equipment, and conveyor systems.
- 7. Mining and Quarrying: The mining industry uses pin couplings in crushers, conveyor belts, and various mineral processing equipment.
- 8. Oil and Gas: Pin couplings are used in the oil and gas sector for pumps, compressors, and drilling equipment.
- 9. Power Generation: In power plants, pin couplings are used in turbines, generators, and other power transmission systems.
- 10. Construction and Heavy Equipment: Pin couplings find applications in construction machinery, earthmoving equipment, and other heavy-duty machinery.
- 11. Agriculture: In agricultural machinery, pin couplings are used in tractors, irrigation systems, and grain processing equipment.
These are just some examples of the industries where pin couplings are commonly used. Pin couplings offer versatility, ease of installation, and reliability, making them suitable for a wide range of applications in different sectors where power transmission is essential.
Selecting the Appropriate Pin Coupling for a Specific Application
Choosing the right pin coupling for a specific application involves considering several factors to ensure optimal performance, reliability, and safety. Here are the key steps to select the appropriate pin coupling:
- 1. Determine the Application Requirements: Understand the specific requirements of the application, including torque and speed specifications, shaft sizes, and misalignment tolerances. Consider the operating conditions, such as temperature, humidity, and exposure to corrosive substances.
- 2. Calculate Torque and Power: Calculate the torque and power requirements of the application to determine the appropriate pin coupling’s torque capacity. Make sure to consider both steady-state and peak torque loads.
- 3. Consider Misalignment Tolerance: Evaluate the degree of misalignment expected in the system. Different pin coupling designs offer varying levels of misalignment tolerance. Choose a coupling that can accommodate the expected misalignment without compromising performance.
- 4. Select the Pin Coupling Type: Based on the application requirements, choose the appropriate pin coupling type – single pin, double pin, triangular pin, splined pin, or taper pin coupling. Each type offers different torque capacities and misalignment capabilities.
- 5. Check Material and Construction: Consider the materials used in the pin coupling’s construction. Common materials include steel, stainless steel, and alloy materials. The material should be suitable for the application’s environmental conditions and corrosion resistance.
- 6. Verify Safety Features: Ensure the selected pin coupling has safety features, such as a fail-safe mechanism to protect equipment from overload or shock loads. Safety is crucial to prevent damage to machinery and ensure operator protection.
- 7. Consult with Manufacturers or Engineers: If unsure about the best pin coupling for the application, consult with coupling manufacturers or mechanical engineers. They can provide valuable insights and recommendations based on their expertise.
By following these steps, you can select the appropriate pin coupling that matches the specific needs of the application, providing reliable and efficient power transmission while minimizing the risk of downtime and equipment failure.
editor by CX 2023-09-28