Product Overview
The forged stainless steel threadolet is a reinforced branch connection fitting designed to create a threaded outlet from a larger diameter run pipe in high pressure industrial piping systems. This MSS SP97 branch outlet fitting is widely used for instrumentation take-off points, valve installation and small bore pipeline connections in oil & gas, petrochemical and power plant applications.
The butt weld connection on the run pipe combined with a precision machined female threaded outlet provides strong structural integrity, reliable sealing performance and easy installation flexibility.
Forged construction improves grain flow strength and reduces stress concentration compared with fabricated tee connections, making stainless steel threadolets an economical and safe branch solution.
Key Features of Stainless Steel Threadolet
- Reinforced branch outlet design for high pressure service
- Butt weld connection to main pipe for structural strength
- Female threaded outlet for valve and instrument connection
- Excellent corrosion resistance in aggressive environments
- Compact and cost-effective alternative to pipe tees
- Suitable for vibration and thermal cycling conditions
Technical Specifications
- Branch Size: 1/8” – 4”
- Run Pipe Size: up to 36”
- Pressure Rating: Class 3000 / 6000 / 9000
- Outlet Connection: Female Thread (NPT / BSPT / BSPP)
- Run Pipe Connection: Butt Weld
- Manufacturing Standard: MSS SP-97
- Surface Finish: Pickled / Passivated / Shot Blasted
These threaded branch fittings are designed for small bore high pressure pipeline installations.
Material Grades Available
Standard Stainless Steel Materials:
- ASTM A182 F304 / F304L
- ASTM A182 F316 / F316L
- ASTM A182 F321 / F347
Optional Project Materials:
- Duplex & Super Duplex Stainless Steel
- Nickel Alloy such as Inconel 625 / Monel 400 / Hastelloy C276
All products are supplied with EN10204 3.1 mill test certificates and full heat number traceability.
Manufacturing Process of Forged Threadolet
Production of stainless steel threaded branch outlets follows strict quality procedures:
- Raw material PMI verification
- Closed die hot forging process
- Heat treatment to enhance mechanical properties
- CNC contour machining for accurate pipe curvature matching
- Precision thread machining of outlet
- Pickling and passivation treatment
- Dimensional inspection and NDT testing
Forging significantly improves pressure resistance and fatigue life of branch connections.
Typical Applications of Threaded Branch Outlet Fittings
Stainless steel threadolets are widely installed in:
- Oil & gas transmission and distribution pipelines
- Refinery and petrochemical processing plants
- Power generation steam and condensate systems
- Instrumentation pressure tapping points
- Hydraulic and pneumatic fluid lines
- Offshore platform piping systems
- Chemical processing and water treatment facilities
These fittings provide reliable branch connections without weakening the main pipeline wall.
Size
Common industrial search sizes include:
- 1/2 stainless steel threadolet
- 3/4 NPT threaded branch outlet
- 1 inch MSS SP97 olet fitting
- 2 inch high pressure branch fitting
- small bore threaded pipeline outlet
Pressure Rating
- Class 3000 stainless steel threadolet
- Class 6000 forged branch outlet fitting
- high pressure threaded olet supplier
Selecting correct pressure class ensures safe long-term pipeline operation.
How to Select the Correct Threadolet
When choosing a threaded branch outlet fitting engineers should consider:
- Main pipe diameter and wall thickness
- Thread standard compatibility with downstream components
- Operating pressure and temperature
- Corrosion resistance of material grade
- Welding method and installation orientation
Proper selection minimizes pipeline stress concentration and improves system safety.
Installation Guidelines for Threadolet
- Match the olet contour to run pipe curvature
- Use qualified welding procedure specification (WPS)
- Protect threaded outlet from weld spatter
- Apply PTFE tape or sealant before valve installation
- Perform hydrostatic pressure testing after installation
Correct installation ensures leak-free performance and long service life.
Quality Assurance & Inspection
Each forged stainless steel threadolet undergoes:
- Dimensional tolerance verification
- Thread gauge inspection
- Positive Material Identification
- Surface crack inspection
- Optional ultrasonic and magnetic particle testing
Ensuring compliance with MSS SP-97 and project specifications.
Why Choose Our Forged Threadolet
- Professional forged pipe fitting manufacturer with export experience
- Wide inventory covering multiple sizes and pressure classes
- OEM customization support based on drawings
- Fast production lead time for urgent EPC projects
- Reliable packaging and global logistics capability
- Competitive factory pricing for distributors and contractors
