Standard austenitic stainless steel
Good corrosion resistance
Cost-effective solution
Suitable for general industrial applications
Contains molybdenum for enhanced corrosion resistance
Excellent performance in marine and chemical environments
Ideal for saltwater and aggressive media
Black steel pipe couplings typically feature:
Natural black oxide finish
Light anti-rust oil coating
Industrial black painted coating (optional)
Unlike galvanized fittings, black steel fittings are designed for indoor or protected environments. For outdoor or corrosive environments, painting or additional coating is recommended.
Built tough. Coated to last. Threaded to connect.
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.
Fire Sprinkler Systems
Gas Pipeline Systems
Industrial Water Supply
Mechanical Equipment Piping
Correct installation ensures a secure, leak-free plumbing system.
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.
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.
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.
Yes, we specialize in bulk production for distributors, contractors, and industrial projects. Our factory ensures stable quality, consistent thread accuracy, and reliable delivery times.
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.
Yes, we manufacture threaded pipe fittings according to international standards, including NPT and BSP threads, ensuring compatibility with global piping systems.
Contact us today for expert guidance and competitive quotes.