🔷 Forged Threaded Union

ASME B16.11 Screwed Union Manufacturer – VikTech Fittings

🔹 Product Overview

VikTech Fittings is a reliable manufacturer and exporter of high-quality Forged Threaded Unions produced in accordance with ASME ASME B16.11 standards.

A threaded union is a three-piece mechanical fitting that allows easy connection and disconnection of two pipes without rotating the pipes. It is widely used in small bore piping systems where frequent maintenance or dismantling is required.

Available Pressure Classes:
✔ 2000#
✔ 3000#
✔ 6000#

Size Range: 1/8” to 4”

🔷 What is a Forged Threaded Union?

A Forged Threaded Union is a detachable pipe fitting consisting of:

• Male threaded end

• Female threaded end

• Central union nut

It allows pipes to be connected or disconnected easily without disturbing the entire piping system.

The forged construction ensures high strength, durability, and excellent pressure resistance.

🔷 Construction of Threaded Union

A threaded union consists of three main parts:

1️⃣ Tail Piece (Male End)

Connects to the pipe with external threads.

2️⃣ Female End

Receives the threaded pipe connection.

3️⃣ Union Nut

Locks both ends together, creating a tight and secure seal.

The design allows quick dismantling for maintenance, inspection, or replacement.

🔷 Technical Specifications

• Standard: ASME B16.11

• Pressure Rating: 2000#, 3000#, 6000#

• Size Range: 1/8” to 4”

• End Connection: Female Threaded (NPT / BSP / BSPT)

• Seat Type: Metal-to-Metal / Flat Seat / O-Ring (optional)

• Manufacturing Type: Closed Die Forged

• Marking: Size, Class, Grade, Heat No.

🔷 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

Other special grades available upon request.

🔷 Manufacturing Process

At VikTech Fittings, forged threaded unions are manufactured through:

1️⃣ Raw material inspection
2️⃣ Closed die forging
3️⃣ Heat treatment
4️⃣ Precision CNC machining
5️⃣ Thread cutting and finishing
6️⃣ Seat machining for tight sealing
7️⃣ Thread gauge inspection
8️⃣ Surface finishing and marking

Each union is designed to provide secure sealing and easy dismantling.

🔷 Advantages of Forged Threaded Union

✔ Easy installation and removal
✔ No welding required
✔ Allows quick maintenance
✔ Strong forged construction
✔ High-pressure capability
✔ Leak-proof sealing design
✔ Reusable connection

🔷 Applications & Industries

Forged threaded unions are widely used in:

• Oil & Gas Industry

• Petrochemical Plants

• Refineries

• Power Generation

• Chemical Processing

• Instrumentation Systems

• Hydraulic Lines

• Steam & Condensate Systems

They are especially suitable for systems requiring frequent disassembly.

🔷 Testing & Quality Assurance

All threaded unions undergo strict quality checks:

✔ Visual Inspection
✔ Dimensional Inspection
✔ Thread Gauge Testing
✔ Seat Inspection
✔ PMI Testing
✔ Hardness Testing
✔ Third Party Inspection (if required)

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

🔷 Why Choose VikTech Fittings?

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