James Duva, Inc. provides slip-on flanges for your project that are durable, reliable and affordable. James Duva has many different slip-on flanges in stock and ready to ship in small to commercial quantities. Slip-On Flanges slide over the end of piping and are welded into place. They typically have a raised or flat face, with […]
James Duva James Duva supplies weld neck flanges that are durable, reliable and withstand stress for high-pressure applications. Weld Neck Flanges come with a tapered hub for additional reinforcement and are used for severe service conditions including extremely high temperatures, extremely low temperatures, or high pressure. These flanges are attached by welding the pipe to the […]
James Duva, Inc. James Duva, Inc. supplies long welded neck flanges Long weld neck flanges are built in a variety of lengths. The flange is beveled so it can be butt-welded to pipes adding extra strength. Pipes provide better flows with this type of connection forging. A Long Weld Neck Flange is ideal for a […]
James Duva, Inc. James Duva supplies all sorts of flanges including socket welded flanges. Socket Weld Flanges are similar to slip-on flanges, however, socket welds have an internal recess on the inner side allowing for a smoother flow of the processed fluid. It also creates a smooth bore with the proper welding and grinding. These […]
James Duva supplies blind flanges in all material grades, specifications, and sizes. Blind flanges are solid disks ideal for testing the flow of gas or liquid through a pipe or vessel. This is just in the case that work repairs must be made on the line. Similar to a regular flange, a blind flange has […]
James Duva supplies high hub flanges. Much like a traditional blind flange – the high hub blind flange is used to close ends of piping systems, valves or equipment nozzles. This flange helps in easy access to a line once it has been sealed It is a round plate with no opening and bolt holes […]
Threaded Flanges can be assembled without welding and are used for special applications. They are similar to slip-on flanges. However, the bore of the Threaded Flange has tapered threads. They are often used for high pressure requirements and other special applications where strength is essential.
Used with lap joint stubs, Lap Joint Flanges slide directly over the pipe. They are mostly used for low alloy steel or carbon piping systems that are regularly dismantled for cleaning or inspection purposes.
RTJ Flanges are made to accept steel ring gaskets into their grooves in order to create a metal to metal seal. This happens when tightened bolts compress the gasket into the grooves between the flanges.
Used with orifice meters for measuring the flow rate of gases or liquids in a pipeline, Orifice Flanges are similar to slip on flanges or weld neck flanges but have extra machining. This extra machining adds pairs of pressure “Tappings” directly opposite each other, making separate orifice tappings or carriers in the pipe wall unneeded.