🔷 Socket Weld Union

ASME B16.11 Forged Fittings Manufacturer – VikTech Fittings

🔹 Product Overview

VikTech Fittings is a leading manufacturer, supplier, and exporter of premium quality Socket Weld Union fittings manufactured in accordance with ASME ASME B16.11 standard.

A Socket Weld Union is a forged fitting designed to connect two pipes in high-pressure small-bore piping systems while allowing easy dismantling and maintenance. Unlike standard couplings, unions can be disconnected without cutting or welding the pipe.

Socket weld unions are widely used in oil & gas, petrochemical, power generation, and chemical processing industries.

Available Pressure Classes: 3000#, 6000#, 9000#
Size Range: 1/8” to 4”

🔷 What is a Socket Weld Union?

A Socket Weld Union consists of three parts:

1️⃣ A socket weld end
2️⃣ A second socket weld end
3️⃣ A central union nut

Pipes are inserted into the socket ends and welded. The union nut allows the two ends to be joined or separated without disturbing the pipeline system.

This design makes it ideal for systems requiring frequent maintenance or component replacement.

🔷 Construction & Design

Socket weld unions are manufactured from forged steel for superior strength and durability. The three-piece design ensures:

✔ Easy installation
✔ Easy dismantling
✔ Strong mechanical connection
✔ Leak-proof sealing
✔ High pressure resistance

The union seat is precision-machined to ensure tight sealing under high pressure and temperature conditions.

🔷 Technical Specifications

• Standard: ASME B16.11

• Pressure Class: 3000#, 6000#, 9000#

• Size Range: 1/8” to 4”

• End Type: Socket Weld

• Design Type: 3-Piece Union

• Manufacturing Process: Forged

• NACE MR0175 Compliance: Available

🔷 Materials Available

🔸 Carbon Steel

• ASTM A105

• ASTM A350 LF2

🔸 Stainless Steel

• ASTM A182 F304 / F304L

• ASTM A182 F316 / F316L

🔸 Alloy Steel

• ASTM A182 F11

• ASTM A182 F22

• ASTM A182 F91

🔸 Duplex & Super Duplex

• ASTM A182 F51

• ASTM A182 F53

Custom grades available as per project requirements.

🔷 Manufacturing Process

At VikTech Fittings, socket weld unions are produced using advanced manufacturing techniques:

1️⃣ Raw material testing
2️⃣ Closed die forging
3️⃣ Heat treatment
4️⃣ CNC machining of union ends
5️⃣ Precision threading of union nut
6️⃣ Assembly and dimensional inspection
7️⃣ Surface finishing and marking

Each union is manufactured to ensure accurate tolerances and superior sealing performance.

🔷 Advantages of Socket Weld Union

✔ Easy disassembly without pipe cutting
✔ Suitable for high-pressure systems
✔ Strong welded joint
✔ Excellent sealing performance
✔ Compact design
✔ Long service life
✔ Reduced maintenance downtime

🔷 Applications & Industries

Socket weld unions are commonly used in:

• Oil & Gas Industry

• Petrochemical Plants

• Refineries

• Power Plants

• Chemical Processing Units

• Steam & Condensate Lines

• Hydraulic Systems

They are especially preferred in systems where valves, pumps, or instruments require periodic removal or replacement.

🔷 Testing & Quality Assurance

All socket weld unions undergo strict inspection and testing procedures:

✔ Visual Inspection
✔ Dimensional Inspection
✔ Hydrostatic Testing
✔ PMI Testing
✔ Hardness Testing
✔ Third Party Inspection (if required)

Mill Test Certificates are provided as per EN 10204 3.1 / 3.2.

🔷 Why Choose VikTech Fittings?

✔ ISO Certified Manufacturer
✔ Large Stock Availability
✔ Competitive Pricing
✔ Fast Global Delivery
✔ Custom Manufacturing Capability
✔ Export Documentation Support