1. Introduction: The weld neck flange can be directly welded to butt-weld fittings like elbows, tees or reducers without requiring any short piece of pipe unlike slip-on flange which require a straight length of pipe for installation
2. Description: The Welding Neck Flanges are often used for high-pressure applications.
website:http://www.hkforging.net/welding-neck-flanges/uni-welding-neck-flanges/