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Application

Fire sprinkler pipeline system

Industrial gas pipeline

Boiler room piping

Water supply system

Mechanical equipment pipeline

Easy Installation

I design our pipe nipples with standard NPT or BSP threads, making them easy to install using common pipe tools.
No welding, special equipment, or extensive training is required on-site.
This helps project teams complete pipeline connections quickly and safely.

Material Options

Different materials perform differently in the same pipeline environment.

Galvanized Steel Pipe Nipple
Better corrosion resistance, widely used in fire sprinkler and water supply systems.

Carbon Steel Pipe Nipple
Lower cost option for gas pipelines and industrial mechanical systems.

Stainless Steel Pipe Nipple
Excellent corrosion resistance, ideal for chemical plants and food processing pipelines.

Brass Pipe Nipple
ASTM B43 pipe nipple has good sealing and corrosion resistance, and is commonly used in plumbing and light-duty systems.

Production Capacity

Our factory produces seamless steel pipe nipples with stable quality and high output.
Monthly production capacity exceeds 800 tons, supporting both bulk orders and distribution supply.
Standard sizes are usually delivered within 15–25 days, and OEM customization is available.

Compatible Products

Seamless pipe nipples are typically used together with other threaded pipe fittings:

pipe nipple connect with other fittings

Seamless pipe nipples are a key connector in threaded piping systems.

They can easily connect with pipe tees, couplings, unions, valves, and pipes to build a complete pipeline structure.

With standard NPT or BSP threads, contractors can quickly assemble flexible piping systems for water, gas, fire sprinkler, and industrial applications.

pipe nipple connect with other fittings

Pipe nipples provide a reliable threaded connection between pipes and fittings.

They are commonly used with tees and couplings to form complete pipeline systems.

This connection method allows distributors and contractors to quickly assemble piping networks on site.

Pipe nipples are commonly used in threaded piping systems together with couplings, tees, elbows, valves, and pipes.

These fittings enable the construction of complete threaded piping systems for industrial and commercial projects.

Size & Drawing

Seamless steel pipe nipples are available in a wide range of sizes and thread standards.
Common thread types include NPT, BSPT, and BSPP, meeting international piping standards.

Custom lengths and thread specifications are available according to project requirements.

As a China-based pipe fitting manufacturer with years of experience supplying the American and European markets, we specialize in producing stainless steel, carbon steel, and brass pipe nipples and couplings. Our facility is equipped with precision CNC threading machines and dedicated quality control processes to ensure every product meets ASTM and ASME standards.

We supply distributors, wholesalers, and industrial buyers across the United States and Canada, offering consistent product quality, competitive factory-direct pricing, and reliable lead times on both standard and custom orders.

  pipe nipple manufacturer

As a professional stainless steel nipple manufacturer in China, we supply high-quality threaded pipe nipples used to connect or extend piping systems in water, oil, gas, and industrial applications.

Our stainless steel pipe nipple products are manufactured with precise threading and accurate dimensions to ensure tight sealing, easy installation, and reliable performance under demanding conditions.

With strict quality control across every production stage, we ensure consistency in bulk orders, making us a trusted pipe nipple manufacturer for global buyers.

As an experienced pipe nipple supplier, we also support OEM production and comply with international standards to meet different project requirements.

High-Quality Stainless Steel Welded Pipe for Industrial Piping Systems

  • Precision NPT / BSP Threads
  • Multiple Materials Available
  • Factory Direct Supply

Custom Available

Custom sizes, threads, and materials supported.
👉 Send your drawing for a fast quotation.

Product Description

Our welded pipes are designed for reliable threaded connections in industrial piping systems.

They are widely used to connect pipes, valves, and equipment.

With precise thread machining and strict quality control, our products ensure tight sealing and long service life.

Suitable for oil & gas, chemical, and water treatment applications.

Applications

  • Oil & Gas Pipeline Systems
  • Chemical Processing Plants
  • Water Supply Systems
  • Industrial Equipment Connections

Why Choose Our Stainless Steel Welded Pipe

  • Factory Direct Supply
  • Strict Quality Inspection
  • Fast Production & Delivery
  • Rich Export Experience

OEM Custom Pipe & Fabrication

We provide flexible customization services:

  • Custom length and size
  • NPT, BSP, or special thread standards
  • Multiple material options
  • Surface treatment as required

👉 Send your drawing to start your project

custom stainless steel welded pipe

【FAQ】

Q1: Can you produce according to the drawings?

Yes, we support OEM production based on drawings or samples.

Q2: What thread standards do you support?

We provide NPT, BSPT, BSPP, and other international threads.

Q3: What is your MOQ?

MOQ varies by product, and flexible quantities are available.

Q4: What materials can you supply?

Carbon steel, stainless steel (304/316), and brass are available.

Looking for a Reliable Pipe Fittings Supplier?

We are ready to support your project with high-quality products and a fast response.

👉 Get a Quote Now

👉 Send Your Drawing Today

What Is a TBE Galvanized Steel Pipe Nipple?

A TBE pipe nipple, short for Threaded Both Ends pipe nipple, is a standard type of threaded pipe nipple.

Both threaded ends, while the center section remains plain, to ensure stable tightening.

TBE pipe nipples provide a clear center section, making them more practical for assembly with threaded fittings.

Our galvanized steel nipples have an electro-dipped surface, providing enhanced corrosion resistance.

As a China galvanized pipe nipples manufacturer, our products meet ASTM standards, NPT, BSP, and BSPT threads.

galvanized steel nipple

Product Specifications

Parameter Details
Product TBE Galvanized Steel Pipe Nipple
Material Black Carbon Steel (A53 / A106 Gr.B)
Standard ASTM A733
Thread Type NPT / BSP / BSPT
Size Range 1/8″ – 6″ (DN6 – DN150)
Wall Thickness Schedule 40 / Schedule 80
Surface Finish Electro-dip Galvanized
End Type Threaded Both Ends (TBE)
Center Section Plain / Unthreaded

TBE Pipe Nipple vs Close Pipe Nipple

A TBE pipe nipple has a plain center section, which allows easier installation and tool grip.

It is the most widely used because of its balance of strength, ease of installation, and compatibility.

A close pipe nipple is almost fully threaded for compact connections in space-limited applications.

galvanized vs black steel nippleclose pipe nipple

Material & Surface Options

We supply a full range of threaded pipe nipple products, including:

  • Galvanized steel
  • Black steel
  • Seamless
  • Schedule 80
  • Custom

Galvanized coating improves corrosion resistance.

Manufacturing Supply

As a pipe nipple manufacturer, we provide a stable bulk supply for distributors and wholesalers worldwide.

Our production covers:

OEM marking, private packaging, inspection support, and fast export delivery are available.

We manufacture threaded couplings that connect two pipes or pipe nipples in a straight line.

Our 304 stainless steel couplings are known for corrosion resistance, durability, and strength. They perform well in environments with moisture, chemicals, or temperature changes, where carbon steel may fail.

In threaded piping systems, couplings are used with pipe nipples, elbows, tees, and valves. This versatility makes them essential for industrial installations, maintenance, and equipment assembly.

As a pipe fitting manufacturer, we produce stainless steel pipes and fittings that meet common standards and provide accurate NPT or BSP threads.

Technical Specifications

coupling size chart

Applications

Fire Sprinkler Systems

Gas Pipeline Systems

Industrial Water Supply

Mechanical Equipment Piping

Installation Guide

Correct installation ensures a secure, leak-free plumbing system.

  1. Clean the pipe threads before installation.
  2. Apply PTFE thread seal tape or pipe sealant (optional).
  3. Make the coupling connect with the piping through threads.
  4. Tighten using a pipe wrench, avoiding over-tightening.
  5. Check alignment and test the connection for leaks.

female thread detail of stainless steel pipe coupling

Compatible Pipe Fittings

We use pipe couplings with other threaded fittings to build flexible, efficient pipelines. Pipe elbows change direction, pipe tees create branches, and valves control flow.

Why Choose Our Factory

We have extensive manufacturing experience producing threaded pipe fittings.

Each product undergoes dimensional inspection and thread verification.

Our factory maintains stable production to support bulk orders.

Deliver orders promptly to meet urgent project schedules.

We support customized products and packaging according to customer requirements.

FAQ

What is the difference between a pipe nipple and a pipe coupling?
A pipe nipple is a male-thread fitting, while a pipe coupling is a female pipe fitting.

What materials are available for pipe couplings?
Common materials include galvanized steel, black carbon steel, and stainless steel.

What thread standards do you offer?
We produce fittings compatible with NPT, BSP, and BSPT thread standards.

Can you produce custom sizes or specifications?
Yes, we are a professional pipe fitting manufacturer and can provide custom sizes, thread types, and packaging to meet project requirements.

What Is a TOE Black Steel Nipple?

A TOE nipple — short for Threaded One End — is a pipe nipple with external threads on one end only.

The opposite end is left with a plain, unthreaded bore, designed for butt welding directly onto pipe or equipment.

This configuration is essential when one connection point requires a threaded fitting while the other side requires a permanent welded joint, eliminating the need for additional weld couplings or adapters.

TOE black steel nipples are commonly specified in oil & gas, petrochemical, and industrial process piping where a combination of threaded and welded connections exists within the same pipeline system.

Product Specifications

Parameter Details
Material Black Carbon Steel (A53 / A106 Gr.B)
Standard ASTM A733
Thread Type NPT / BSP / BSPT (one end only)
Plain End Beveled or Square Cut for welding
Size Range 1/4″ – 4″ (DN8 – DN100)
Wall Thickness Schedule 40 / Schedule 80
Surface Finish Black (Mill Finish / Oil Coated)
Length 2″ – 6″ standard (custom available)

Key Features

  • Threaded one end, plain the other – Combining mechanical and welded connections in one component
  • Bevel-cut plain end – Ready for butt welding without additional preparation
  • Reduces component count – Eliminates need for separate weld couplings
  • Available in Sch 40 & Sch 80 – Covers standard and heavy-duty applications
  • Custom lengths available – Tailored to specific installation requirements

Applications

  • Oil & gas pipelines – Transitioning from threaded instrument connections to welded mainline pipe
  • Petrochemical plants – Equipment nozzle connections requiring mixed joint types
  • Industrial process piping – Where permanent welded joints meet removable threaded connections
  • Power generation – Boiler and pressure vessel nozzle fabrication
  • Marine & offshore – Piping systems requiring welded integrity with threaded accessibility

Why Choose Our TOE Black Steel Nipples?

  • ✅ Factory-direct pricing with no middlemen
  • ✅ Plain end beveled to welding-ready standard
  • ✅ Full mill test reports (MTR) available on request
  • ✅ Third-party inspection supported (SGS, BV, TÜV)
  • ✅ Custom lengths and bulk orders welcome

Our SS304 pipe nipple offers superior corrosion resistance and durability for demanding industrial applications. Manufactured from high-grade stainless steel 304 material, this 1/2 inch pipe nipple features precision NPT (National Pipe Thread) threading for secure, leak-proof connections.

Key Features:

  • Material: Stainless Steel 304 (1.4301, X5CrNi18-10)
  • Size: 1/2 inch (DN15)
  • Thread Type: NPT (National Pipe Tapered Thread)
  • Standard: ASME B16.11, ASTM A403
  • Length Options: 2″, 3″, 4″, 6″, 8″, 10″, 12″ (custom lengths available)
  • Surface Finish: Bright annealed or pickled & passivated
  • Pressure Rating: Up to 6000 PSI

Applications: Perfect for oil & gas, petrochemical plants, food & beverage processing, pharmaceutical equipment, water treatment systems, and marine installations where corrosion resistance is critical.

Quality Assurance: Each pipe nipple undergoes 100% dimensional inspection and thread gauge testing. ISO 9001:2015 certified manufacturing. Material test certificates (MTC) provided with every order.

Minimum Order: 50 pieces | Free Samples Available | Delivery: 7-14 days

INDUSTRIAL PIPE NIPPLES — FACTORY DIRECT

Precision-Threaded
Pipe Nipples for Every Specification

Carbon steel, stainless steel, and brass pipe nipples manufactured to ASTM standards. We supply contractors, distributors, and EPC firms across global markets with consistent quality and full traceability.

 
Can you supply pipe fittings in bulk for projects?

Yes, we specialize in bulk production for distributors, contractors, and industrial projects. Our factory ensures stable quality, consistent thread accuracy, and reliable delivery times.

What is the difference between a pipe nipple and a pipe coupling?

A pipe nipple has external threads on both ends, while a pipe coupling has internal threads.
In most threaded piping systems, a pipe nipple connects two couplings or other female threaded fittings.

Do you provide NPT and BSP threaded pipe fittings?

Yes, we manufacture threaded pipe fittings according to international standards, including NPT and BSP threads, ensuring compatibility with global piping systems.

Ready to discuss your project?

Contact us today for expert guidance and competitive quotes.

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