A flange is an essential mechanical component used for connecting pipes, sealing joints, supporting structures, and more. It is widely utilized in civil engineering, plumbing, industrial pipelines, construction, and even medical equipment. The right flange ensures efficiency, durability, and leak-proof connections.
This guide covers:
What is a flange used for?
Types of flanges and their applications
Flange dimensions and materials
Flanges in pipes, toilets, beams, breast pumps, and PVC systems
How Udhhyog provides premium-quality flanges
What is a Flange Used For?
Flanges serve as connectors, reinforcements, and support components in various industries. Some common uses include:
✅ Connecting Pipes: Used in oil & gas pipelines, water supply systems, and industrial plants.
✅ Sealing Joints: Prevents leaks in plumbing and mechanical connections.
✅ Structural Support: Reinforces beams, columns, and other load-bearing structures.
✅ Medical Applications: Found in breast pumps for a secure and comfortable fit.
✅ PVC Systems: Used in drainage, irrigation, and chemical transport systems.
Types of Flanges
There are multiple flange types designed for specific applications.
1. Pipe Flanges
Used in plumbing, gas pipelines, and industrial fluid transport systems. Common types include:
Weld Neck Flange (WN): High-strength connection for high-pressure applications.
Slip-On Flange (SOF): Slides over the pipe and welded for easy installation.
Blind Flange (BL): Seals pipe ends for maintenance and testing.
Threaded Flange (THF): Screwed onto pipes without welding, ideal for low-pressure use.
Lap Joint Flange (LJF): Used with a stub end, allowing easy rotation.
2. Toilet Flanges
A toilet flange connects the toilet to the drainpipe, ensuring a leak-proof and stable connection.
Made from PVC, stainless steel, or brass.
Secured with wax rings and bolts for a tight seal.
Common in residential and commercial plumbing systems.
3. Beam Flanges
Used in structural engineering and construction, flanges on beams provide support and weight distribution.
I-Beam Flange: Supports horizontal loads in bridges and buildings.
T-Beam Flange: Used in reinforced concrete structures.
H-Beam Flange: Offers greater load-bearing capacity.
4. Flanges in Breast Pumps
A flange in a breast pump is the funnel-shaped part that fits around the breast.
Comes in different sizes for comfort.
Ensures efficient milk extraction.
Made from medical-grade silicone or plastic.
5. PVC Flanges
PVC (Polyvinyl Chloride) flanges are commonly used in drainage, irrigation, and chemical applications.
Resistant to corrosion and chemical exposure.
Lightweight yet durable for long-term use.
Commonly used in water treatment plants and wastewater systems.
Flange Dimensions and Materials
Flanges come in various standard dimensions, often following ASME, ANSI, and IS specifications. Below is a sample dimension chart for pipe flanges.
| Nominal Pipe Size (NPS) | Flange Diameter (mm) | Bolt Hole Diameter (mm) | Number of Bolts |
|---|---|---|---|
| 1/2" | 90 | 15 | 4 |
| 1" | 125 | 19 | 4 |
| 2" | 150 | 19 | 4 |
| 4" | 230 | 19 | 8 |
| 6" | 280 | 22 | 8 |
| 8" | 345 | 22 | 8 |
| 10" | 405 | 25 | 12 |
Flanges are made from various materials, including:
✅ Mild Steel (MS): Cost-effective and strong.
✅ Stainless Steel (SS): Highly corrosion-resistant.
✅ Brass: Common in plumbing applications.
✅ PVC: Lightweight and resistant to chemicals.
✅ Silicone: Used in breast pumps and medical applications.
Flange Pronunciation and Common Queries
The word flange is pronounced as /flændʒ/, rhyming with "change."
FAQs:
🔹 How do I choose the right flange for my application?
Consider pressure rating, material, and connection type.
🔹 Can I use a PVC flange for high-pressure applications?
No, PVC is ideal for low to medium-pressure systems. Use stainless steel or mild steel for high pressure.
🔹 Where can I buy high-quality flanges?
Udhhyog provides premium flanges for various industries.
Why Choose Udhhyog for Flanges?
✅ High-Quality Industrial Fittings – Pipe, toilet, beam, and PVC flanges available.
✅ Precision Engineering – Ensures accurate dimensions and durability.
✅ Competitive Pricing – Affordable rates for bulk and custom orders.
✅ Trusted by Professionals – Serving Delhi, Haryana, UP, and J&K.
For top-quality flanges, trust Udhhyog – your reliable industrial supplier.
Conclusion
Flanges are used in various industries, including plumbing, construction, medical equipment, and pipelines. Choosing the right flange type and material ensures efficiency, durability, and safety. Udhhyog provides industry-leading flange solutions, from pipe flanges to medical-grade breast pump flanges.
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