Types of 200mm pipes
A 200 mm pipe features multiple applications and comes in various materials, each with unique benefits. Construction and plumbing industries predominantly use these pipes.
Polyvinyl Chloride (PVC) Pipes
200 mm PVC pipes are prevalent due to their affordability and corrosion resistance. This pipe's rigidity and smooth interior surface reduce the accumulation of debris and enhance fluid passage. Commonly, construction workers use them for water supply systems, drainage, and sewers. Therefore, these pipes are adaptable to residential and industrial applications.
Polypropylene Random Copolymer (PPR) Pipes
PPR pipes have a notable presence in hot and cold water systems. The high impact and temperature resistance of this pipe material make it suitable for plumbing in construction. In addition, PPR pipes are lightweight, which makes them easy to handle. Hence, their long lifespan, coupled with fusion welding joints, gives them minimal leakage.
Stainless Steel Pipes
Stainless steel pipes are particularly advantageous in construction zones where durability and aesthetics matter. The stainless steel alloy's resistance to rust and staining ensures that these pipes have a long service time. Thus, stainless steel's high strength holds up in demanding conditions. Also, its resistance to extreme temperatures makes it ideal for various applications like structural components.
Galvanized Iron Pipes (GI)
GI pipes were once common in construction for water transport. Although their usage has declined with the rise of more effective materials, galvanized pipes still offer decent anti-corrosion capabilities. Their rigidity makes them suitable for structural applications beyond just plumbing. However, with modern alternatives like PVC and stainless steel, replenishment of these pipes in old construction is gaining prominence.
Specifications and maintenance of 200mm pipes
Pipes with 200 mm nominal diameter have various specifications. These specifications vary with the material of the pipe, which are key factors in determining their maintenance requirements and durability aspects.
- Material Specifications: 200 mm stainless steel pipes have the highest tensile strength. Other hard-wearing materials include galvanized iron and PPR. However, GI pipes lose longevity in moist environments as they corrode the interior. PVC pipes are the most corrosion-resistant, hence ideal for underground installations or areas with high moisture content. The non-metal nature of this material means it does not corrode. However, it is less impact-resistant compared to metals, so it requires careful handling during installation.
- Wall Thickness: Wall thickness varies by application and pipe standards (such as ANSI and DIN). However, typically, a thicker wall enhances the internal pressure capacity. Therefore, pipes in industrial zones should have increased thickness.
- Pipe Fittings and Joints: PVC and PPR pipes use heat bonding and solvent welding for joint creation. These create a strong, leak-resistant bond. Stainless steel and GI pipes utilize threaded or welded joints. For studded galvanized iron pipes, they should use professional threading tools. Otherwise, improper thread formation can lead to water seepage. Stainless steel joints are usually welded for a seamless, robust connection.
Inspections
- PVC 200 mm pipes should undergo physical inspections to check for visible cracks, bends, or other defects. Pipes with such signs should get a replacement, as they will likely burst with time. Secondly, pressure testing determines whether the pipe can comfortably handle the expected fluid pressure in a system. Other than that, Ultrasonic thickness gauges check for wall thickness to detect any wear over time.
- On the other hand, stainless steel pipes require frequent visual inspections to check for rust or corrosion. While stainless steel offers better resistance, it still needs regular checks, especially in areas with high humidity. Non-destructive testing techniques like magnetic particle tests can detect internal cracks. They don't damage the piping at all. To maintain the pipe material, use chemical-resistant wipes on the pipe surfaces. This helps mitigate staining and surface corrosion.
- Galvanized iron pipes require both visual inspections for signs of corrosion and physical inspection for pipe integrity. Additionally, checking for signs of rust on the exterior and interior is vital for GI pipes' longevity. Water seepage through rust holes also requires immediate replacement of the affected pipe. Additionally, ultrasonic testing can help identify weak or corroded areas without cutting into the pipe.
Maintenance
- The major maintenance requirement for 200 mm PVC pipes is keeping them free from debris. Regular plumbing monitoring and flushing the system to remove stagnated water are easy maintenance practices. Avoid direct UV light exposure on PVC, as it can degrade the material over time. However, unlike other materials, PVC piping has no extra need for corrosion inhibition or rust checking. This reduces maintenance costs and effort.
- For stainless steel pipes, frequent checks for visible surface corrosion are vital. In addition, using stainless steel brushes or chemical-based corrosion inhibitors maintains the pipe effectively. It offers long-lasting services. Besides, unlike other materials, the maintenance of stainless steel does not interfere with the pipe's substance transport. This makes it ideal for transporting water, gas, and other sensitive materials.
- GI pipes require constant maintenance in areas where they are prone to humidity. Regular inspections and reapplying the zinc coating if necessary may prevent future corrosion. Also, ensure that rusting holes get immediate attention. While some may need patching, others require full pipe replacement. Like iron, GI's frequent maintenance cost and method are a major deterrent to its usage. Any user using GI pipes must replace old pipes consistently. If left unchecked, these pipes run the risk of contaminating the water.
Applications of 200mm pipes
- Industrial Use: 200 mm pipes are extensively used in industrial applications to transport fluids like water and chemicals. Thus, the diameter makes it suitable for areas with large flow demands. PVC pipes also offer chemical resistance, making them optimal for chemical plants. Furthermore, stainless steel pipes maintain their integrity under extreme temperatures, making them ideal for high-heat processes.
- Infrastructure and construction: Construction workers use 200 mm pipes for drainage systems and sewage lines. PVC's low weight and high resistance to corrosion make it ideal for underground drainage. Water flow stabilization is a key role played by these pipes in infrastructure. 200 mm diameter ensures they can accommodate significant flow volumes. Thus, preventing water stagnation and infrastructure damage.
- Water Supply Systems: In residential areas, construction workers use 200mm diameter pipes for the main water supply lines. PVC and galvanized iron pipes are suitable for transporting potable water. GI pipes add the advantage of corrosion resistance, making them ideal for long-term water transportation. Further, PPR pipes also have the same functionality for hot and cold water systems.
- Mining Operations: Mining operations also utilize 200 mm pipes, especially in slurry transportation and dewatering systems. Stainless steel and GI's resistance to abrasion allow them to withstand harsh mining materials. Furthermore, PVC pipes also offer flexibility, lessening the risk of breaking during ground movement.
How to choose a 200mm pipe
Choosing the right 200 mm hosepipe mainly depends on the project requirements and environment. Industries must consider potential pressures, fluid types, and temperatures.
- Project Requirements: The first step is to consider the project requirements, such as the intended use. What should the pipe be used for? For instance, if the pipe is for drainage, PVC is ideal. If the water transportation is for drinking water, consider using PPR or stainless steel pipes. For industrial applications, go for stainless steel. It features high impact resistance and strength.
- Pressure Rating: Ensure the pipe's pressure rating contains the system's anticipated pressure. PPR and stainless steel pipes are suitable for high-pressure applications. Their materials' strength is enough to withstand this pressure without bursting. PVC pipes, however, have limited pressure capacity. This makes them more ideal for low-pressure applications.
- Fluid Type: gauge the fluid or gas the pipe will carry. PVC pipes are ideal for corrosive chemicals and moisture since they are non-conductive and corrosion-resistant. Meanwhile, stainless steel and GI pipes are for more abrasive substances where extra durability is a must. Note that GI pipes might not be ideal in highly corrosive environments. The interior coating will wear off with time, leading to corrosion.
- Environmental Conditions: Outdoor temperature might influence the choice of pipe material. Construction sites across hot regions can lead to pipe degradation over time. Hence, high UV resistance materials like stainless steel are ideal in such areas. On the other hand, humid and wet areas lead to constant corrosion. Thus, 200 mm stainless steel or PVC pipes are best here.
- Ease of Installation and Cost: 200 mm PVC pipes are the easiest to install because they are the most lightweight. Moreover, they are cost-effective. On the other hand, stainless steel pipes are heavy and require professionals for installation. Although GI pipes are budget-friendly, their corrosion vulnerability means they require frequent maintenance. In the long run, it will be more costly than stainless steel. So, prioritize factors that align with the budget and time frame of the project.
Q and A
Q1: Which 200 mm pipe is ideal for underground drainage?
A1: PVC pipes are ideal for underground drainage. Their immunity to corrosion guarantees durability even when exposed to moist soils.
Q2: Are stainless steel pipes suitable for hot water systems?
A2: Yes, the thermal resistance of stainless steel pipes makes them ideal for hot and cold water transport.
Q3: Do galvanized iron pipes corrode when exposed to moist conditions?
A3: Yes, GI pipes are vulnerable to corrosion if exposed to moist conditions over time. Constant maintenance leads to an average replacement cost in the long run.
Q4: What is the benefit of 200 mm PRR pipes?
A4: 200 mm PPR pipes are immune to corrosion and significantly reduce heat transfer. Thus, they are suitable for both cold and hot water systems.
Q5: How often should stainless steel pipes be checked for corrosion?
A5: Frequent visual inspections should occur to check for external corrosion. Also, non-destructive tests can help check for internal corrosion without damaging the pipes.