Type of Pipe in Plumbing – Size, Class & Material Chart
Type of Pipe in Plumbing – Size, Class & Material Chart
Plumbing systems are the backbone of every home, building, and industry. But with so many pipe types available, it is important to understand the classification of pipes in plumbing by material, size, and class. This guide breaks down the main types of pipe in plumbing with charts, comparisons, and applications.
Why Pipe Classification is Important
Choosing the correct pipe type ensures:
- Durability and long service life
- Proper water flow and pressure handling
- Resistance to corrosion and scaling
- Cost-effectiveness for specific projects
Classification of Plumbing Pipes
1. Classification by Material
- MS Pipes: Affordable, strong but prone to rust
- GI Pipes: Zinc-coated MS pipes, better corrosion resistance
- SS Pipes: High durability and hygienic, ideal for drinking water
- Copper Pipes: Durable, resistant to bacteria, expensive
- PVC & CPVC Pipes: Lightweight, easy to install, CPVC handles hot water
- PEX Pipes: Flexible, modern choice for housing projects
➡ See detailed material breakdown here: Types of Plumbing Pipes Materials.
2. Classification by Class (IS 1239 Standard)
In India, IS 1239 defines MS and GI pipe classes:
- Class A: Light, low wall thickness
- Class B: Medium, balanced strength
- Class C: Heavy duty, thick wall, high pressure
3. Classification by Application
- Domestic Plumbing: GI, CPVC, PEX
- Industrial Systems: SS 304, SS 316, Copper
- Fire Safety: MS Class C or GI Heavy pipes
- Drainage: PVC or HDPE
Plumbing Pipe Size & Class Chart
| Pipe Type | Nominal Bore (NB) | Wall Thickness (mm) | Class | Applications |
|---|---|---|---|---|
| MS Pipe | 15mm – 300mm | 2.0 – 5.0 | A/B/C | Fabrication, plumbing |
| GI Pipe | 15mm – 150mm | 2.5 – 5.4 | A/B/C | Water supply, fire safety |
| SS 304 Pipe | 15mm – 200mm | 2.0 – 6.0 | Standard | Drinking water, pharma |
| SS 316 Pipe | 15mm – 200mm | 2.0 – 6.0 | Standard | Marine, chemicals |
| PVC Pipe | 20mm – 250mm | 2.0 – 6.0 | Schedule 40/80 | Drainage, residential plumbing |
Apollo vs Tata – Which Brand is Better in Plumbing?
- Apollo Steel: Known for GI and MS pipes, budget-friendly, easy availability.
- Tata Steel: Strong in SS pipes (304/316), premium quality, global standards.
➡ Compare the two in detail: Apollo Steel vs Tata Steel Quality.
Which Pipe Type Should You Choose?
- Budget Projects: Apollo GI or MS Class B
- Premium Plumbing: Tata SS 304 or 316
- Hot Water: CPVC or SS
- Industrial Systems: SS 316, Copper
FAQs – Type of Pipe in Plumbing
1. Which is the best pipe for home water supply?
GI and CPVC are most common, but SS 304 is best for long-term hygiene.
2. What is Class C pipe used for?
Class C is heavy-duty, used for high-pressure applications and fire safety.
3. Are Tata pipes better than Apollo in plumbing?
Tata SS pipes are better for premium use, while Apollo MS/GI pipes are cost-effective.
Related Reads
- Apollo Steel vs Tata Steel Quality
- Types of SS Pipe – Grades, Uses & Standards
- Types of Plumbing Pipes Materials
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