Carbon Steel A105 Coupling Bothwell 1/2″ NPT x 1/2″ Socket Weld

Description

Product Overview

The Bothwell Carbon Steel A105 Coupling is a precision‑engineered fitting designed for demanding hydraulic and plumbing applications. Crafted from high‑grade carbon steel A105, the coupling conforms to the ASME B16.11 standard, guaranteeing dimensional accuracy and reliable performance. It features a 1/2 inch NPT threaded end on one side and a 1/2 inch socket weld end on the other, allowing installers to choose the most appropriate connection method for their system. The forged construction is achieved through a compressive molding process that applies intense heat and pressure, refining the grain structure and enhancing the material’s tensile strength. This results in a fitting that can withstand working pressures up to 3000 psi, making it suitable for both high‑pressure fluid transfer and environments with aggressive chemicals.

Usage

This coupling is ideal for a wide range of industrial scenarios. In hydraulic circuits, it connects small‑bore steel tubing to larger pipe sections, providing a secure transition that resists leaks under high pressure. It is frequently used in oil and gas extraction rigs, where equipment must endure extreme pressures and temperature fluctuations. The socket weld side offers a permanent, leak‑free joint when welded, while the NPT thread allows quick assembly or disassembly for maintenance. Additionally, the fitting is well‑suited for water treatment plants, chemical processing facilities, and fire‑suppression systems where corrosion resistance and pressure integrity are critical. Its compact dimensions (1.9 x 1.1 x 1.1 inches) and lightweight design (0.13 kg) make it easy to handle during installation.

Why Choose Us

Choosing Bothwell means selecting a partner committed to quality and reliability. Every coupling undergoes rigorous testing, including pressure testing at 1.5 times the rated capacity, to verify that it meets or exceeds industry expectations. The manufacturing process is ISO‑9001 certified, ensuring consistent material properties and dimensional tolerances. Bothwell also provides comprehensive technical support, offering installation guidance, engineering drawings, and after‑sales service to address any field concerns. Our supply chain guarantees prompt delivery, and we maintain a robust inventory to minimize lead times for critical projects. When you purchase this fitting, you receive a product backed by a reputable brand with a track record of delivering durable, high‑performance components for demanding applications.

Key Features

• Robust carbon steel A105 construction delivers superior strength and impact resistance.
• Dual connection options – NPT thread for quick assembly and socket weld for permanent joints.
• Rated for 3000 psi, providing confidence in high‑pressure hydraulic and plumbing systems.
• Meets ASME B16.11 standards, ensuring precise fit and compatibility with industry‑standard fittings.
• Comprehensive after‑sales support and technical assistance from Bothwell’s engineering team.

FAQ

What is the difference between the NPT and socket weld ends?

The NPT (National Pipe Thread) end is designed for threaded connections, allowing easy installation and removal without welding. The socket weld end requires a welding process to create a permanent, leak‑free joint, which is ideal for high‑pressure or high‑temperature applications where a permanent seal is essential.

Can this coupling be used with stainless steel pipe?

Yes, the coupling can be joined to stainless steel pipe using appropriate fittings and sealing compounds. However, for optimal corrosion resistance, it is recommended to use carbon steel or compatible alloys when the system will be exposed to aggressive chemicals.

Is the coupling compatible with international standards?

The fitting conforms to ASME B16.11, which is widely recognized in North America and many international markets. It also aligns with ISO 7005‑1 specifications for welded pipe fittings, making it suitable for global projects.

How do I ensure a leak‑free socket weld connection?

Prepare the socket weld surface by cleaning it of any contaminants, applying a suitable welding filler, and using a proper welding technique that achieves full penetration. Follow the recommended welding parameters for carbon steel A105 to achieve a strong, leak‑free joint.

What is the recommended torque for the NPT thread?

For a 1/2 inch NPT thread, apply a torque of 30–35 Nm (22–26 lb‑ft) using a calibrated torque wrench. Use a thread sealant compatible with carbon steel to enhance sealing performance and prevent leakage.