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Introduction
Socket welded fittings are forged pipe fittings designed for small-diameter, high-pressure piping systems. The pipe is inserted into a recessed socket and then fillet welded around the joint, forming a strong and leak-resistant connection.
These fittings are widely used in industries requiring high reliability and pressure safety, including oil & gas, chemical processing, power generation, and hydraulic systems.
Compared with threaded fittings, socket weld fittings provide superior sealing performance and are more suitable for high-pressure and high-temperature working conditions.
Product Types
We supply a full range of socket welded fittings:
· Socket Weld Elbow (45° / 90°)
· Socket Weld Tee (Equal / Reducing)
· Socket Weld Coupling (Full / Half)
· Socket Weld Union
· Socket Weld Cap
· Socket Weld Reducer Insert
Material Options
Available materials include:
· Carbon Steel (ASTM A105)
· Stainless Steel (304 / 316 / 316L)
· Alloy Steel (F11 / F22 / F91)
· Duplex Stainless Steel (custom available)
These materials ensure excellent mechanical strength, corrosion resistance, and long service life under harsh industrial environments.
Key Features
· High pressure resistance and structural integrity
· Leak-proof welded connection
· Suitable for small-bore piping systems (typically ≤ 2")
· Excellent fatigue resistance under vibration conditions
· Easy alignment before welding
· Long service life with minimal maintenance
Pressure Ratings & Standards
Our socket welded fittings comply with international standards:
· ASME B16.11 (Forged Fittings)
· ASTM material standards
· Pressure Class: 3000 / 6000 / 9000 PSI
Applications
Socket welded fittings are widely used in:
· Oil & Gas pipelines
· Chemical and petrochemical plants
· Power generation systems
· Hydraulic and pneumatic systems
· Boiler and heat exchanger lines
· High-pressure instrumentation piping
Advantages
Compared with threaded fittings, socket welded fittings offer:
· Higher joint strength
· Superior sealing performance (no thread leakage risk)
· Better resistance to vibration and pressure cycling
· Reduced maintenance requirements
Quality Control
Each product is strictly inspected before delivery:
· Chemical composition testing of raw materials
· Dimensional inspection (ASME compliance)
· Hydrostatic pressure testing
· NDT inspection (upon request)
· Surface finish and marking verification
Packaging & Delivery
· Anti-corrosion oil protection
· Plastic caps on both ends
· Wooden case or carton packaging
· OEM branding and labeling available
Conclusion
Socket welded fittings are a reliable solution for high-pressure, small-diameter piping systems requiring safety and durability. With precision forging and strict quality control, SHAANXI GOLD-STONE delivers high-performance socket weld fittings for global industrial applications.
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