GI Nipples, Tank Nipples, and Pipe Nipples
Introduction
A GI nipple (Galvanized Iron Nipple) is a short piece of pipe with male threads on both ends, used to connect two female-threaded fittings or pipes. These fittings play a crucial role in plumbing, water supply systems, tanks, and industrial piping. They are available in various sizes and types, including tank nipples, hose nipples, and pipe nipples, designed for different applications.
This guide explores GI nipples, their uses, types, sizes, pricing, and fittings, along with FAQs to help you understand their significance in piping systems.
1. What is a GI Nipple?
A GI nipple is a galvanized iron pipe fitting used for extending, joining, or redirecting pipelines. The galvanization process provides corrosion resistance, making them ideal for water supply, gas pipelines, and industrial applications.
Key Features of GI Nipples:
- Made from galvanized iron (coated with zinc for rust protection).
- Threaded on both ends for easy connection.
- Available in different lengths and diameters.
- Used for water distribution, plumbing, gas lines, and tank connections.
2. Uses of Different Types of Nipples
A. GI Tank Nipple
A GI tank nipple is a pipe fitting designed to connect tanks to pipelines.
Uses:
- Connects water storage tanks to the main pipeline.
- Used in agriculture, plumbing, and industrial water systems.
- Provides a secure and leak-proof connection between tanks and pipes.
B. Galvanized Pipe Nipple
A galvanized pipe nipple is commonly used in water pipelines, gas supply systems, and industrial setups.
Uses:
- Extends or connects steel or iron pipes.
- Ideal for plumbing and high-pressure applications.
- Prevents rusting and corrosion due to zinc coating.
C. Hose Nipple
A hose nipple is used to connect hoses to threaded pipes or fittings.
Uses:
- Common in gardening, irrigation, and air compressors.
- Used in fuel and hydraulic lines.
- Provides a secure and flexible connection between hoses and pipes.
D. X Nipple
An X nipple refers to extra-long pipe nipples, commonly used where additional pipe length is required.
Uses:
- Used in industrial and construction piping.
- Allows for adjustments in plumbing layouts.
- Available in custom lengths based on application.
3. GI Tank Nipple Sizes & Price
Common Sizes of GI Tank Nipples
GI tank nipples are available in various sizes based on diameter and length.
Size (Inches) | Thread Type | Common Application |
---|---|---|
1/2" | BSP/NPT | Domestic water tanks |
3/4" | BSP/NPT | Industrial pipelines |
1" | BSP/NPT | Agriculture and plumbing |
1.5" | BSP/NPT | Fire suppression systems |
2" | BSP/NPT | Large water storage tanks |
GI Tank Nipple Price
The price of a GI tank nipple depends on the size, material grade, and supplier.
Size | Approx. Price (INR) |
---|---|
1/2" | ₹20 - ₹50 |
3/4" | ₹40 - ₹80 |
1" | ₹70 - ₹150 |
1.5" | ₹120 - ₹250 |
2" | ₹200 - ₹400 |
Prices may vary based on location and supplier.
4. GI Tank Nipple HSN Code & Fittings
HSN Code for GI Tank Nipples
- HSN Code: 7307
- GST Rate: 18% (Applicable for galvanized iron fittings in India)
GI Tank Nipple Fittings
GI nipples are used with various fittings such as:
- GI Elbows – For changing direction in pipelines.
- GI Sockets – For joining two pipe sections.
- GI Tees – For branching pipelines.
- GI Unions – For easy disassembly of pipes.
5. Vestigial Nipple – What Is It?
A vestigial nipple is an extra undeveloped nipple found on the human body due to genetic factors. It has no functional use and is medically known as supernumerary nipple.
This term is unrelated to pipe fittings but is often searched in the same context.
6. FAQs on GI Nipples and Tank Nipples
Q1. What is the purpose of a GI nipple?
A GI nipple is used for joining two female-threaded fittings in a pipeline, ensuring a secure and leak-proof connection in water, gas, and industrial applications.
Q2. What is a GI tank nipple used for?
A GI tank nipple is designed to connect storage tanks to pipelines, ensuring efficient water flow and preventing leaks in plumbing and industrial applications.
Q3. What is the difference between a pipe nipple and a hose nipple?
- Pipe Nipple – Connects two pipes with male threading on both ends.
- Hose Nipple – Connects a hose to a threaded pipe fitting, ensuring a secure connection for water, air, or gas.
Q4. What is the standard size of a GI tank nipple?
The most common sizes are 1/2", 3/4", and 1", used in domestic plumbing, industrial pipelines, and agricultural water systems.
Q5. What are galvanized nipples used for?
Galvanized nipples are used in corrosion-prone environments such as water distribution, gas supply, and construction plumbing.
Q6. What is the HSN code for GI pipe fittings?
The HSN code for GI tank nipples and fittings is 7307, which falls under iron and steel pipe fittings.
Q7. How much does a 1-inch GI tank nipple cost?
A 1-inch GI tank nipple costs approximately ₹70 to ₹150, depending on material quality and manufacturer.
Q8. Where can I buy GI tank nipples online?
You can purchase GI tank nipples from industrial suppliers, plumbing stores, and online marketplaces like IndiaMART, Amazon, and local hardware suppliers.
Q9. Can I use a GI nipple for hot water systems?
Yes, GI nipples can be used for hot water systems, but stainless steel or brass fittings are recommended for prolonged durability.
Q10. What is an X nipple in piping?
An X nipple refers to an extra-long pipe nipple, commonly used in construction, HVAC systems, and high-pressure pipelines.
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