Carbon Steel A105 Coupling 1-1/4in NPT Female x 1-1/4in Weld Bothwell

Description

Product Overview

The Bothwell Carbon Steel A105 half coupling is engineered for high‑performance fluid transfer in demanding environments. Crafted from forged A105 carbon steel, the fitting offers superior tensile strength and resistance to wear, ensuring a long service life even under continuous high‑pressure operation. The component features a 1‑1/4in NPT female thread on one side, providing a secure, leak‑free seal when mated with standard NPT male fittings. Opposite the threaded end, a 1‑1/4in weld‑on socket allows for seamless integration with welded pipe sections, delivering a versatile solution for both threaded and welded piping systems. Rated for a maximum working pressure of 3000 psi, this fitting meets the rigorous standards required in industrial, automotive, and aerospace applications. Its alloy‑steel exterior finish adds an extra layer of corrosion protection, making it suitable for use with a variety of fluids, including water, oil, and compressed gases. The compact, round‑body design simplifies installation while maintaining a low profile, reducing the risk of interference with adjacent components.

Usage

Designed for versatility, the Bothwell half coupling excels in a wide range of operational settings. In industrial plants, it connects pump discharge lines to process equipment, handling aggressive chemicals and high‑temperature fluids without compromising integrity. Automotive workshops benefit from its ability to join fuel lines, brake lines, and coolant circuits, where reliable sealing and durability are paramount. Aerospace manufacturers rely on the fitting for aircraft hydraulic systems, where weight savings and pressure tolerance are critical factors. The NPT female thread enables quick, tool‑free connections to standard fittings, while the weld‑on end provides a permanent, high‑strength joint for sections that must withstand vibration and thermal cycling. Whether used in a stationary refinery, a mobile service vehicle, or an aircraft maintenance hangar, the fitting’s robust construction and precise tolerances ensure consistent performance. Proper installation includes cleaning the mating surfaces, applying appropriate thread sealant on the NPT side, and using a certified welding procedure for the socket end. Regular inspection for wear and corrosion will extend the service life of the component.

Why Choose Us

Bothwell stands for quality engineering and customer‑focused manufacturing. Every half coupling undergoes rigorous testing, including pressure‑hold, tensile, and corrosion assessments, to verify compliance with industry standards such as ASTM A105 and ASME B16.5. Our commitment to precision machining guarantees that each thread conforms to exact NPT dimensions, eliminating the common issues of cross‑threading and leakage. The forged carbon‑steel construction provides a balance of strength and ductility, allowing the fitting to absorb shock loads without cracking. In addition, the alloy‑steel coating is applied using a controlled process that enhances resistance to rust and chemical attack, reducing maintenance costs for end users. We back our products with a responsive technical support team that assists with installation guidance, troubleshooting, and spare‑part sourcing. When you select the Bothwell half coupling, you receive not only a component but also a partnership that prioritizes reliability, safety, and long‑term value for your projects.

Key Features

• Forged A105 carbon steel delivers exceptional strength and durability for high‑pressure applications.
• 1‑1/4in NPT female thread ensures a tight, leak‑free seal with standard fittings.
• 1‑1/4in weld‑on socket provides a permanent, high‑strength joint for welded pipe sections.
• Rated for up to 3000 psi, meeting demanding industrial, automotive, and aerospace requirements.
• Comes with dedicated technical support and after‑sales service for seamless integration.

FAQ

What pressure rating does this half coupling support?

The fitting is rated for a maximum working pressure of 3000 psi, making it suitable for high‑pressure fluid transfer in industrial, automotive, and aerospace systems.

Can this fitting be used with both threaded and welded pipe sections?

Yes. One end features a 1‑1/4in NPT female thread for quick connection to standard male fittings, while the opposite end has a 1‑1/4in weld‑on socket for permanent welded joints.

Is the material compatible with corrosive chemicals?

The forged carbon‑steel body is finished with an alloy‑steel coating that provides excellent resistance to rust and many chemicals, though it is recommended to verify compatibility with specific media.

What installation steps are recommended for optimal performance?

Clean all mating surfaces, apply a suitable thread sealant on the NPT side, and follow certified welding procedures for the socket end. After installation, inspect the joint for proper alignment and leak‑free operation.

Do you offer technical assistance for this product?

Bothwell provides dedicated technical support to help with installation, troubleshooting, and selection of compatible components, ensuring you get the most out of the fitting.