When it comes to plumbing, HVAC, gas, and fire protection systems, the strength and reliability of pipe connections are absolutely critical. For decades, black pipe fittings have served as a dependable solution in both industrial and residential installations. At Yinuo Pipe Fittings, we manufacture and supply a comprehensive line of threaded black pipe fittings, along with premium ductile iron flanged fittings and pipe systems designed to meet the most demanding performance requirements.
What Are Black Pipe Fittings?
Black pipe fittings are made from mild steel or iron and feature a black oxide scale surface finish, which distinguishes them from galvanized fittings. These fittings are widely used for transporting natural gas, steam, oil, and compressed air in low- to medium-pressure systems. Their threaded connections allow for quick assembly, secure joints, and easy maintenance without welding.
Yinuo’s black fittings are available in a wide range of sizes and configurations, including:
- Elbows (90°, 45°)
- Tees and crosses
- Couplings and unions
- Bushings and reducers
- Caps and plugs
- Nipples and extension fittings
All fittings are produced according to ASTM and ANSI standards, ensuring compatibility with a broad range of pipes and systems used worldwide.
Applications in Gas, Plumbing, and Mechanical Systems
Thanks to their rigid structure and resistant sealing properties, black iron pipe fittings are the perfect choice for Natural gas distribution networks, Oil and fuel pipelines, Fire sprinkler systems, Industrial steam lines, Residential plumbing (non-potable systems), Compressed air and HVAC installations.
If you want a commercial boiler system or a gas line extension for residential heating purposes, Yinuo’s fittings have the strength and productivity necessary for pressure systems.
Going Beyond Black Fittings: Ductile Iron Flanged Solutions
In addition to standard threaded fittings, Yinuo Pipe Fittings also specializes in ductile iron flanged fittings and pipe, designed for high-pressure water, sewer, and industrial fluid systems. Ductile iron offers superior mechanical strength, impact resistance, and a longer service life compared to traditional cast iron.
Our flanged fittings include:
- Flanged tees, elbows, and reducers
- Blind flanges and flanged adapters
- Flanged bends and caps
- Fittings lined with epoxy or cement for enhanced corrosion resistance
Each ductile iron flanged fitting is manufactured under strict quality control, hydro-tested, and coated according to international waterworks standards (e.g., ISO 2531, EN 545).
This makes them an excellent choice for:
- Municipal water and wastewater systems
- Irrigation infrastructure
- Industrial processing lines
- Fire hydrant and valve installations
Why Choose Yinuo Pipe Fittings?
Yinuo has gained a good reputation in the global marketplace having made the combination of highly advanced manufacturing, well-practiced logistics and customer-oriented service affordable and successful. In case you need black pipe fittings for the HVAC contractors or ductile iron flanged fittings and pipes for public infrastructure projects, we can offer you:
- Any size and configuration at your convenience
- Rapid lead times and a stable inventory
- OEM/ODM customization
- Strict QC as well as support for third-party inspectors
- Services for export to Asia, Middle East, Europe, and America
Our production facilities are equipped with advanced CNC machining, sand casting, and all kinds of automatic coating systems that ensure quality in every fitting. One can also take only one container if the requirement is such or Yinuo will deliver long-term framework contracts to the buyers at each stage of the deal.