Product Description
Stainless steel cast iron pipe coupling as per BS EN877 for drainage vent and rainwater
1. our products are made strictly according to EN877 standard.
2. size range from DN50 to DN300, with 3m/pc.
3. painting: inside epoxy paint in color yellow with thickness above 120 micron, outside paint in color red with thickness above 60 micron. If you have special requirement, please contact with us, as we could also make the painting according to your requirement.
4. length/pc: 3m
5. delivery time: 7-15 days, depend on your quantity.
6. application: used for waste water/rain water/ventilation.
7. advantage: avoid pollution, noise resistant.
8. payment term: T/T, L/C, or D/P.
9. production capacity: 2000tons/ month
10. we could do the third party inspection at famous organizations such as SGS, BV, etc.
11. by now we have shipped our cast iron pipes to many countries such as Germany,Italy,UK,Hongkong,Russia,Turkey,Sweden,Norway,Singapore,the Middle East,etc.
| DN | External diameter DE(mm) | Wall thickness(mm) | Unit weight | Length | ||
| Nominal value | Tolerance | Nominal value | Minimum value | kg/pc | (mm) | |
| 40 | 48 | +2 -1 |
3.0 | 2.5 | 12.70 | 3000+/-20 |
| 50 | 58 | 3.5 | 3.0 | 13.00 | ||
| 70 | 78 | 3.5 | 3.0 | 17.70 | ||
| 75/80 | 83 | 3.5 | 3.0 | 18.90 | ||
| 100 | 110 | 3.5 | 3.0 | 25.20 | ||
| 125 | 135 | +2 -2 |
4.0 | 3.5 | 35.40 | |
| 150 | 160 | 4.0 | 3.5 | 42.20 | ||
| 200 | 210 | +2.5 -2.5 |
5.0 | 4.0 | 69.30 | |
| 250 | 274 | 5.5 | 4.5 | 99.80 | ||
| 300 | 326 | 6.0 | 5.0 | 129.70 | ||
If any inquiry , Please feel free to contact with me
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What Industries Commonly Use Stainless Steel Couplings, and Why?
Stainless steel couplings are widely used in various industries due to their excellent properties and benefits. Some of the common industries where stainless steel couplings find significant usage include:
- Food and Beverage: Stainless steel couplings are prevalent in the food and beverage industry because of their high corrosion resistance and hygienic properties. They are suitable for applications where the coupling may come into contact with water, food products, or cleaning agents.
- Chemical Processing: In chemical processing plants, stainless steel couplings are preferred for their resistance to chemical corrosion. They can handle various chemicals and aggressive substances, making them suitable for pumps, mixers, and other equipment in the chemical industry.
- Pharmaceutical: The pharmaceutical industry requires equipment that meets strict hygiene standards. Stainless steel couplings are easy to clean, durable, and resist contamination, making them ideal for pharmaceutical manufacturing processes.
- Oil and Gas: In the oil and gas sector, stainless steel couplings are used in pipelines, compressors, and drilling equipment due to their ability to withstand harsh and corrosive environments, especially in offshore drilling operations.
- Marine: Stainless steel couplings are widely used in marine applications because of their resistance to saltwater corrosion. They are found in propulsion systems, winches, and other marine equipment.
- Aerospace: In the aerospace industry, where weight and reliability are crucial, stainless steel couplings are used in aircraft engines and other critical components to provide high-performance power transmission.
- Pulp and Paper: The pulp and paper industry requires equipment that can handle the moisture and chemical-laden environment of paper mills. Stainless steel couplings are corrosion-resistant and suitable for various applications in this industry.
- Power Generation: In power plants, stainless steel couplings are used in turbines, generators, and other equipment that require reliable power transmission and resistance to harsh operating conditions.
- Mining: The mining industry utilizes stainless steel couplings in conveyor systems, crushers, and other equipment that requires high durability and resistance to abrasive materials.
In summary, stainless steel couplings are chosen for their corrosion resistance, durability, and reliability. They offer the ability to withstand challenging environments and ensure smooth power transmission, making them a preferred choice in a wide range of industries.
Stainless Steel Couplings in High-Temperature Applications
Stainless steel couplings are well-suited for high-temperature applications due to their excellent thermal stability and resistance to oxidation. The structural integrity of stainless steel couplings remains largely unaffected within certain temperature ranges, making them suitable for use in various industrial processes that involve elevated temperatures.
The performance of stainless steel couplings in high-temperature conditions is primarily attributed to the unique properties of stainless steel alloys. Stainless steel contains chromium, which forms a protective oxide layer on the surface when exposed to oxygen. This passive oxide layer, also known as chromium oxide, acts as a barrier against further oxidation and corrosion, enhancing the material’s resistance to heat and scaling.
The temperature limits for stainless steel couplings depend on the specific grade of stainless steel used. Common stainless steel grades like 304 and 316 have different temperature thresholds, but they can typically withstand temperatures ranging from 600°C to 925°C (1112°F to 1700°F) without significant loss of structural integrity.
For extreme high-temperature applications, specialized stainless steel alloys with higher nickel and chromium content, such as Inconel or Hastelloy, may be used. These alloys can withstand even higher temperatures, often exceeding 1000°C (1832°F) while maintaining their mechanical properties.
However, it’s essential to consider other factors such as thermal expansion and mechanical loads when using stainless steel couplings in high-temperature applications. High temperatures can cause thermal expansion and contraction, leading to misalignment or additional stress on the coupling. Engineers and designers should carefully account for these factors to ensure proper functioning and longevity of the coupling in such environments.
In summary, stainless steel couplings can be used in high-temperature applications without significant loss of structural integrity, provided the operating temperatures fall within the limits of the specific stainless steel grade used. Proper consideration of thermal expansion and other mechanical factors is crucial to ensuring the coupling’s optimal performance and reliability.
Proper Installation of Stainless Steel Couplings for Optimal Performance
Installing a stainless steel coupling correctly is essential for ensuring its optimal performance and longevity. Follow these steps for proper installation:
- Inspect the Coupling: Before installation, carefully inspect the coupling and its components for any damage or defects. Ensure that it matches the required specifications for the application.
- Prepare the Shafts: Clean and degrease the shafts to ensure a clean surface for coupling attachment. Remove any debris or contaminants that could affect the coupling’s performance.
- Align the Shafts: Make sure the shafts are properly aligned to minimize misalignment, which can cause stress on the coupling and lead to premature failure. Use alignment tools to achieve precise alignment.
- Apply Lubrication: Apply a thin layer of appropriate lubricant to the mating surfaces of the coupling halves and the shafts. This will reduce friction during installation and future operation.
- Assemble the Coupling: Carefully position the coupling halves onto the shafts, ensuring that they are fully engaged and aligned. Follow the manufacturer’s instructions for assembly, including torque specifications for clamping screws.
- Tighten Clamping Screws: Gradually tighten the clamping screws in a criss-cross pattern to ensure even pressure distribution. Use a torque wrench to achieve the recommended torque value specified by the manufacturer.
- Check Runout: After installation, check for any runout or eccentricity by rotating the coupling and observing any visible movement or vibration. Address any runout issues promptly.
- Perform a Trial Run: Before putting the coupling into full operation, perform a trial run to ensure smooth operation and check for any signs of abnormal behavior or noise.
- Regular Inspections: Implement a maintenance schedule to regularly inspect the coupling for wear, corrosion, or misalignment. Address any issues promptly to prevent further damage.
Properly installing a stainless steel coupling according to these guidelines will help maximize its performance, reliability, and service life in the mechanical system.
editor by CX 2024-03-15