YanShan Shunlinfeng Pipeline Manufacturing Co., Ltd.
Georgia High-Pressure Socket Weld Tees
High-Pressure Socket Weld Tees
Category:
GeorgiaHigh-Pressure Fittings
Product Description
Standard
Product introduction
High-Pressure Socket Weld Tees – Technical Overview
1. Definition & Purpose
Ahigh-pressure socket weld tee is a forged pipe fitting designed to create a 90° branch connection in critical piping systems, utilizing socket weld joints for superior leak resistance under extreme pressures (typicallyClass 3000 to 6000 per ASME B16.11). These fittings are engineered for systems where threaded or butt-weld tees may compromise integrity.
2. Key Design Features
-Construction Type:
-Equal Tee: All three ends share the same nominal pipe size (NPS)
-Reducing Tee: Branch or run sizes differ (e.g., 1"×1"×½")
-Connection Type:
-Socket Weld: Pipe inserts into recessed sockets for fillet welding (ASME B16.11)
-Reinforced Hub: Extra material at branch intersections for stress distribution
-Bore Configuration:
-Full Bore: Maintains consistent inner diameter (ID) for flow efficiency
-Reduced Bore: Thicker walls for higher pressure containment
3. Pressure-Temperature Ratings
-Class 3000: 7,500 psi @ 38°C
-Class 6000: 15,000 psi @ ambient
-Derating: Follow ASME B31.3 for elevated temps
4. Manufacturing Standards
-ASME B16.11: Dimensional tolerances
-ASTM A961: Material certification
-NACE MR0175: Sulfide stress cracking resistance
5. Installation & Welding Protocol
1.Fit-Up:
- Maintain1.6mm gap between pipe and socket shoulder for thermal expansion
- Align branch axis within ±0.5° of design angle
2.Welding:
-WPS Requirement: Qualified per ASME BPVC Sec. IX
-Pass Sequence:
- Root pass (GTAW) with ER70S-2 filler
- Hot pass (SMAW) using E7018
- Cap pass with controlled heat input
3.Post-Weld:
-PWHT mandatory for alloys ≥ P-No. 3 materials
- Liquid penetrant testing (PT) on all welds
6. Industry Applications
-Oil & Gas: Wellhead control lines, HPU manifolds
-Power Generation: Boiler feedwater splits
-Chemical Processing: Reactor feed/recirculation systems
-Aerospace: Fuel/hydraulic distribution
7. Advantages Over Alternatives
✓50% higher burst pressure vs. threaded tees
✓Zero thread galling risk in vibration-prone systems
✓Smoother flow transition than butt-weld reducers
8. Quality Assurance
-100% UT/RT on welds for Class 6000
-PMI Verification: Confirm alloy chemistry via XRF
-Hydrostatic Test: 1.5x design pressure for 10 min
Note: For sour service, specifyhardness ≤ 22 HRC andNACE-compliant electrodes.
Why Choose Socket Weld Tees for High Pressure?
-Leak-proof performance under cyclic loading
-Compact design vs. flanged solutions
-Faster installation than butt-weld configurations
For corrosive services, considerelectropolished 316L orclad Inconel 625 variants.
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Mr.Jasper
Company Address:Yanshan County,Cangzhou City,Hebei Province,China
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