• Haji Iron & Steel Works

Flanges, Weldneck

Haji Iron and Steel Works is one of the leading manufacturers of Flanges. A flange allows two pipes to be mechanically connected together, or a pipe to be mechanically connected to a valve, tee, choke or other piece of equipment. The principle of a flange is to use a mechanical force (exerted by the bolts) to pre-load the gasket sufficiently so that when internal pressure (end cap force) is applied, there is enough contact stress between the flanges and gasket to maintain a seal. The flange itself needs to be connected to the pipe. This is usually achieved by welding though threaded and other weldless connections also exist. Weldneck is the most common type of flanges used for high-pressure applications. It is designed to transfer stresses concentrations of the base of the flanges. The weldneck flange is recognised by its long tapered hub. The hub provides an important reinforcement to the flange itself and acts to reduce rotation of the flange at bolt up. The smooth transition between flange and the hub combined with the strength of the butt weld joint, allows the flanges to be used in extreme conditions of cyclic loading, bendng and temperature fluctuations. Haji Iron and Steel Works is an organisation which strongly believes in quality, dependability and customer service and it provides best solution to the industry's need for cost effective and quality assured as per customer specification. It has earned an enviable reputation for consistently producing high quality work and also for continuous process of improvement in service.