GI Flange Price List, Types, and Dimensions: Complete Guide for 2" & 4" Flanges

  Galvanized Iron (GI) flanges are widely used in industrial piping systems, plumbing, and water distribution networks due to their corrosion resistance, durability, and cost-effectiveness. Understanding the right GI flange type, dimensions, and price list ensures an optimal selection for various applications.

This guide covers:

• Types of GI flanges and their applications

• GI flange dimensions and size chart

• GI flange price list for 2-inch & 4-inch sizes

• GI puddle flange specifications and pricing

• Why choose Udhhyog for industrial-grade GI flanges?

Types of GI Flanges

GI flanges are classified based on design, pressure rating, and functionality.

1. GI Slip-On Flange (SOF)

• Slides over the pipe and is then welded.

• Suitable for low to medium-pressure applications.

• Common in plumbing and HVAC systems.

2. GI Weld Neck Flange (WN)

• Has a long tapered hub for welding.

• Ideal for high-pressure and high-temperature pipelines.

• Used in water treatment plants and industrial flow lines.

3. GI Blind Flange (BL)

• Seals the end of a pipeline, preventing leaks.

• Used in testing, maintenance, and system shutdowns.

• Common in oil & gas, chemical, and municipal water systems.

4. GI Threaded Flange (THF)

• Screwed onto pipes without welding.

• Best for low-pressure systems.

• Used in gas pipelines and small-diameter applications.

5. GI Puddle Flange

• Designed for underground pipe penetrations.

• Prevents water leakage in concrete structures.

• Common in basements, water tanks, and drainage systems.

GI Flange Dimensions & Size Chart

GI flanges are manufactured following IS 1538, ASME B16.5, and PN16 standards. Below is a standard GI flange dimension chart.

Nominal Pipe Size (NPS)	Flange Outer Diameter (mm)	Bolt Hole Diameter (mm)	Number of Bolts
2"	150	19	4
3"	175	19	4
4"	230	19	8
6"	280	22	8
100mm	210	19	8
150mm	280	22	8

GI Flange Price List (Approximate Rates in INR)

Prices vary depending on size, coating thickness, and manufacturer. Below is a general GI flange price list.

Flange Size	Class	Price (INR/Piece)
2-inch GI Flange	Class 150	₹300 – ₹500
3-inch GI Flange	Class 150	₹500 – ₹750
4-inch GI Flange	Class 150	₹700 – ₹1,000
6-inch GI Flange	Class 150	₹1,200 – ₹1,600
100mm GI Flange	PN16	₹900 – ₹1,400
150mm GI Flange	PN16	₹1,400 – ₹2,000

Bulk orders qualify for discounted rates from Udhhyog.

GI Puddle Flange Price List

GI puddle flanges are specialized fittings used for waterproofing applications. Below is the approximate pricing.

Puddle Flange Size	Price (INR/Piece)
2-inch	₹400 – ₹700
3-inch	₹600 – ₹900
4-inch	₹800 – ₹1,200
6-inch	₹1,500 – ₹2,200
100mm	₹1,200 – ₹1,800
150mm	₹1,800 – ₹2,500

 Why Choose Udhhyog for GI Flanges?

✅ High-Quality GI Flanges – Available in various sizes and pressure ratings.
✅ Custom Manufacturing – Flanges tailored to industrial needs.
✅ Affordable Pricing – Best rates for bulk and custom orders.
✅ Trusted Supplier – Serving Delhi, Haryana, UP, and J&K.

For premium GI flanges, trust Udhhyog – your reliable supplier of industrial piping solutions.

Conclusion

GI flanges play a crucial role in industrial piping, plumbing, and waterproofing applications. Understanding flange types, sizes, and pricing ensures the best selection for durability and efficiency. Udhhyog supplies high-quality GI flanges, from 2-inch to 150mm sizes, meeting Class 150 and PN16 standards.

For competitive pricing and bulk orders, check out the Udhhyog GI Flange Price List and Catalogue.