Buyers often need certain threaded accuracy and installation flexibility.
That is where the long screw pipe nipple becomes essential.
A long screw pipe nipple is widely used where extra thread length is required for assembly or change.
As a manufacturer, we produce standard pipe nipples and long screw pipe nipples.
In this guide, you will learn:
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What a long screw pipe nipple is
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Standard sizes and specifications
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Materials and surface finishes
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Common industrial applications
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BSP vs NPT thread standards
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How to choose the right supplier
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Frequently asked buyer questions
What Is a Long Screw Pipe Nipple?
It is a threaded pipe fitting with an extended threaded section compared to a regular one.
Long screw nipples feature long threading on one side or across the full length of the pipe.
This design allows easier change and better compatibility with other threaded fittings.
Long screw pipe nipples are commonly manufactured according to:
- ASTM A53
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ASTM A106
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BS 1387
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DIN 2440
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EN standards
They are available in multiple finishes, including:
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Black steel
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Hot-dipped galvanized
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Electro galvanized
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Stainless steel
Difference Between Long Screw Pipe Nipple and Standard Pipe Nipple
| Item | Standard Pipe Nipple | Long Screw Pipe Nipple |
|---|---|---|
| Thread Length | Short | Extended |
| Installation Flexibility | Limited | Higher |
| Common Usage | General connections | Adjustable connections |
| Typical Application | Plumbing | Fire protection & industrial systems |
| Assembly Adjustment | Minimal | Easier |
The biggest advantage of a long screw pipe nipple is its adjustable threaded engagement.
This makes it ideal for projects where alignment tolerance is important.
Common Materials of Long Screw Pipe Nipples
1. Carbon Steel Long Screw Pipe Nipple
Carbon steel long screw nipples are the most widely used type.
They provide:
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High strength
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Good pressure resistance
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Competitive pricing
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Wide industrial compatibility
These products are commonly used in:
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Gas lines
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Water piping
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Fire sprinkler systems
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Mechanical construction
2. Galvanized Long Screw Pipe Nipple
Galvanized long screw nipples are coated with zinc for corrosion resistance.
There are two common galvanizing methods:
Hot Dipped Galvanized
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Thicker zinc coating
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Better corrosion protection
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Suitable for outdoor and humid environments
Electro Galvanized
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Smoother surface finish
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Lower cost
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Suitable for indoor applications
Galvanized long screw nipples are commonly used in:
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Plumbing systems
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Water transportation
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Construction projects
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Agricultural irrigation
3. Stainless Steel Long Screw Pipe Nipple
Stainless steel versions offer superior corrosion resistance and longer service life.
Common grades include:
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SS304
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SS316
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SS316L
These are suitable for:
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Chemical industries
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Marine environments
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Food processing
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High humidity applications
Long Screw Pipe Nipple Sizes
Long screw pipe nipples are available in multiple sizes and schedules.
Common Diameter Range
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1/8 inch
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1/4 inch
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1/2 inch
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3/4 inch
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1 inch
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2 inch
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4 inch
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Up to 12 inches
Common Pipe Schedules
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SCH 40
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SCH 80
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Extra Heavy
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STD
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XS
Custom dimensions are also available based on project requirements.
Thread Standards of Long Screw Pipe Nipples
Selecting the correct thread type is critical for sealing performance and compatibility.
NPT Thread
NPT (National Pipe Thread) is commonly used in:
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United States
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Canada
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North American markets
Features:
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Tapered thread
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Strong sealing performance
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Widely used in industrial systems
BSP Thread
BSP (British Standard Pipe) is common in:
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Europe
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Middle East
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Asia
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Africa
Types include:
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BSPT
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BSPP
Different countries and projects may require different thread standards.
We support customized threading based on customer drawings and standards.
Applications of Long Screw Pipe Nipples
Fire Protection Systems
Plumbing Systems
Gas Pipeline Systems
Mechanical and Industrial Projects
Surface Treatment Options
Black Finish
Black steel surface treatment is economical and suitable for oil, gas, and indoor industrial systems.
Some buyers also require:
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Black painting
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Sand blasting
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Anti-rust oil coating
Hot Dipped Galvanized Finish
Hot dipped galvanized long screw nipples offer excellent an
