Weld & Threaded Flanges

Threaded flanges slip over pipes to bring them together and secure their ends. They join with threaded pipes for extra connection strength. Choose threaded flanges for your low-pressure applications. Depending on the nature of the piping system, you may choose to weld your flanges to your pipes. This can create a better seal, but does not add any structural strength to the joint.

Our customers often choose slip-on socket weld flanges for use with narrow, high-pressure pipes. Socket weld flanges are essential parts of steam lines and hydraulic systems. The pipe is inserted into the socket end; the joint is sealed with a fillet weld (and also an interval weld, for safety). It is important to "counter bore" to match pipe sizes—especially inner diameters—to create a smooth bore. This allows the gas or liquid in the pipe to flow faster and more freely.

Pipe flanges help you avoid flow disruptions and turbulence at critical joints. They are easy to install and will thoroughly secure your pipe joints. These flanges must be bored to the exact inner dimensions of the receiving pipe to avoid any change in flow value.

Hoffmeyer has over 90 years of experience helping companies find the industrial parts and supplies they need. Consult with one of our trusted experts and discuss the details of your project. We will help you find the custom parts, accessories, and adapters you need, as well as the exact pipe flanges, threaded flanges, and socket weld flanges for your application.