GI Flange Types, Specifications, and Pricing – Find the Best 2" & 4" Flange Rates

 Galvanized Iron (GI) flanges are widely used in industrial piping, plumbing, and water supply networks due to their corrosion resistance, durability, and cost-effectiveness. Selecting the right GI flange type and size is essential for efficient system performance.

This guide covers:

• Types of GI flanges and their uses
• Standard GI flange specifications and sizes
• Pricing details for 2-inch & 4-inch GI flanges
• How Udhhyog provides top-quality GI flanges at competitive rates

Types of GI Flanges

GI flanges are categorized based on design, connection type, and functionality.

1. GI Slip-On Flange (SOF)

• Slides over the pipe before welding.
• Ideal for low to medium-pressure systems.
• Common in HVAC, water pipelines, and construction.

2. GI Weld Neck Flange (WN)

• Designed for high-pressure applications with a long tapered hub.
• Provides strong welded joints.
• Used in water treatment plants and industrial flow lines.

3. GI Blind Flange (BL)

• Seals pipe ends, preventing fluid or gas leakage.
• Used for pipeline testing, maintenance, and shutdowns.
• Found in chemical plants, oil & gas, and municipal systems.

4. GI Threaded Flange (THF)

• Screwed onto pipes without welding.
• Used for low-pressure gas and water pipelines.
• Common in small plumbing and HVAC systems.

5. GI Puddle Flange

• Prevents water leakage where pipes pass through walls or floors.
• Commonly used in basements, water tanks, and drainage systems.
• Ensures watertight sealing in underground applications.

GI Flange Specifications & Dimensions

GI flanges conform to IS 1538, ASME B16.5, and PN16 standards. Below is the standard GI flange dimension chart.Nominal Pipe Size (NPS)Flange Outer Diameter (mm)Bolt Hole Diameter (mm)Number of Bolts2"1501943"1751944"2301986"280228100mm210198150mm280228

GI Flange Pricing for 2" & 4" Sizes

GI flange prices depend on size, coating thickness, and manufacturer. Below is the approximate GI flange price list.Flange SizeClassPrice (INR/Piece)2-inch GI FlangeClass 150₹300 – ₹5003-inch GI FlangeClass 150₹500 – ₹7504-inch GI FlangeClass 150₹700 – ₹1,0006-inch GI FlangeClass 150₹1,200 – ₹1,600100mm GI FlangePN16₹900 – ₹1,400150mm GI FlangePN16₹1,400 – ₹2,000

Bulk orders qualify for discounted rates from Udhhyog.

GI Puddle Flange Pricing

Puddle flanges are specialized fittings used for waterproofing applications. Below is the puddle flange price list.Puddle Flange SizePrice (INR/Piece)2-inch₹400 – ₹7003-inch₹600 – ₹9004-inch₹800 – ₹1,2006-inch₹1,500 – ₹2,200100mm₹1,200 – ₹1,800150mm₹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, standard specifications, and pricing helps in selecting the best option for long-term durability. Udhhyog supplies top-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.