PVC Schedule 80 is a type of heavy-duty plastic piping used in plumbing and industrial settings. It's thicker and stronger than regular PVC pipes (known as Schedule 40). Think of it like the difference between a regular drinking straw and an extra-thick milkshake straw - Schedule 80 is the stronger version. Plumbers and contractors choose this type when they need pipes that can handle higher pressure, harsh chemicals, or industrial use. You might see it mentioned alongside terms like "industrial grade piping" or "heavy-duty PVC."
Installed PVC Schedule 80 piping systems in industrial facilities
Managed multiple projects involving Schedule 80 PVC installations for chemical processing plants
Supervised teams in replacing metal pipes with PVC Sch 80 for cost efficiency
Typical job title: "Industrial Plumbers"
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Q: How do you determine when to specify PVC Schedule 80 instead of Schedule 40?
Expected Answer: A senior plumber should explain pressure ratings, chemical resistance needs, and cost considerations. They should mention specific scenarios where Schedule 80 is required by code or best practices.
Q: Describe a complex industrial piping project you've managed using Schedule 80 PVC.
Expected Answer: Look for answers that demonstrate project management skills, understanding of safety requirements, and experience coordinating with other trades while working with industrial-grade materials.
Q: What safety precautions do you take when installing Schedule 80 PVC?
Expected Answer: Should mention proper ventilation for cement fumes, correct cutting tools, proper support spacing, and pressure testing procedures.
Q: How do you ensure proper joints when working with Schedule 80 PVC?
Expected Answer: Should describe proper cleaning, priming, and cementing techniques, as well as curing times and pressure testing methods.
Q: What's the difference between Schedule 40 and Schedule 80 PVC?
Expected Answer: Should be able to explain that Schedule 80 has thicker walls, is stronger, and is used for higher pressure applications and industrial settings.
Q: What basic tools do you need to work with Schedule 80 PVC?
Expected Answer: Should list basic tools like pipe cutters, primers, cement, cleaning cloths, and measuring tools.