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.
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| 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 |
|---|
What Are the Maintenance Requirements for Pin Couplings?
Pin couplings are known for their simplicity and ease of maintenance. Regular maintenance helps ensure the longevity and optimal performance of pin couplings in various mechanical systems. Here are the key maintenance requirements for pin couplings:
- Lubrication: Most pin couplings require periodic lubrication to reduce friction between the pins and the coupling hubs. Lubrication helps prevent wear and corrosion, ensuring smooth operation.
- Inspection: Regular visual inspections are essential to identify any signs of wear, misalignment, or damage. Inspecting the pins, coupling hubs, and surrounding components can help detect potential issues early on.
- Torque Check: It is crucial to periodically check and retighten the bolts or screws that secure the coupling to the shafts. Loose fasteners can lead to misalignment and coupling failure.
- Alignment: Proper shaft alignment is critical for the effective functioning of pin couplings. Regularly check and adjust the alignment if necessary to minimize wear and vibrations.
- Environmental Protection: In harsh environments or corrosive conditions, take measures to protect the pin coupling from contaminants or chemicals that could cause damage.
- Replacement of Worn Components: When any of the coupling components, such as pins or hubs, show signs of significant wear, they should be replaced promptly to prevent further damage.
It is important to follow the manufacturer’s maintenance guidelines and recommendations for the specific type of pin coupling used in the application. Regular maintenance not only ensures the smooth operation of the coupling but also helps prevent unexpected breakdowns and reduces the risk of costly downtime. Proper maintenance can extend the service life of pin couplings and contribute to the overall reliability of the connected 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.
Limitations and Disadvantages of Using Pin Couplings
While pin couplings offer various advantages and are suitable for many applications, they also have some limitations and disadvantages to consider:
- Misalignment Restrictions: Pin couplings can accommodate a certain degree of misalignment, but excessive misalignment can lead to increased wear and stress on the coupling components. They are not as effective at handling large angular or parallel misalignments compared to other flexible couplings like gear or elastomeric couplings.
- Less Damping Capacity: Pin couplings have limited damping capacity, which means they may not effectively absorb and reduce vibrations in the system. In applications where vibration damping is critical, elastomeric or flexible couplings may be more suitable.
- Noisy Operation: The rigid nature of pin couplings can lead to increased noise during operation, especially at high speeds or in applications with significant misalignment. This noise can be a concern in environments where noise levels need to be minimized.
- Higher Maintenance: Compared to maintenance-free couplings like certain types of elastomeric couplings, pin couplings may require more frequent inspection and maintenance. The pins and other components may experience wear over time and need replacement.
- Environmental Limitations: Some pin couplings may not be suitable for use in corrosive or high-temperature environments, depending on the materials used. Stainless steel or other corrosion-resistant materials can help mitigate this limitation.
- Size and Weight: In certain applications, the size and weight of pin couplings may be larger and heavier compared to other types of couplings. This can be a consideration in applications where weight is a concern or space is limited.
Despite these limitations, pin couplings remain a popular choice for many applications where their advantages, such as simplicity, durability, and cost-effectiveness, outweigh their disadvantages. It is crucial to carefully assess the specific requirements of the application and consider factors like misalignment, vibration, maintenance needs, and environmental conditions when selecting a coupling type.
editor by CX 2024-04-04