Types of Flanges

Flanged fittings are used to connect pipe openings to various equipment, such as valves or pipe-to-pipes, and when frequent opening and closing are required for inspection or repairs. These fittings are installed in the form of disc-shaped parts and are always installed in pairs with the help of bolts and nuts and are easily disassembled. Flanges are suitable for bearing both high and low pressures. ASME B16.5 standards are used for sizes 1/2 to 24 inches and ASME B16.47 for sizes 26 to 60 inches. The flanges produced by Pars Regulator Company are designed and manufactured in accordance with ANSI B16.34 standard and in classes 150 to 2500. These flanges are classified according to the outer surfaces as Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ), Female & Male, and Groove & Tongue.

Welding Neck Flang

These flanges are suitable for high-pressure and temperature joints and are resistant to stress and vibration conditions due to their special design.

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Surface Flanges

These flanges are connected to pipes by internal and external welding and are suitable for places with limited space, but they are less resistant than neck flanges.

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Chambered Welding Flange

Socket Weld Flange

They are used for high-pressure, low-diameter piping systems and are more resistant to fatigue when welded internally.

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Ring Flanges

They are very suitable for high-pressure and high-temperature services and are widely used in the oil and gas industries by creating precise sealing with the help of rings.

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