Our Product: Titanium Rolled Rings Forgings Butt Welding Fittings 

Flange pipe (flanged pipe fittings) that with a flange (flange or access plate) of the tube. It is made by casting, but may also constitute a threaded connection or welding. Flange (flange, joint) by a pair of flanges, a gasket, and the composition of a number of bolts nuts. Gasket on the sealing surface between the two flanges, tighten the nut, the gasket surface pressure reaches a certain value than the post-deformation, and to fill the sealing surface uneven Department, so that does not leak tight connection. Detachable flange connection is a connection. By the connected components can be divided into the container flange and pipe flanges. Divided by structure type, have an overall flange, loose flanges and threaded flange. Common integral flange with flat flange and butt welding flange. Less rigid flat welding flange for the pressure p ≤ 4MPa occasions; welded flange, also known as high-neck flange, more rigid, higher temperature for pressure situations. Flange sealing surface, there are three types: planar sealing surface for the pressure is not high, medium non-toxic occasions; uneven sealing surface for the higher pressure situations; tongue and groove sealing surface, suitable for flammable and explosive , toxic medium and high pressure situations. Gasket is to produce plastic deformation, and has a certain intensity of the ring material. Most pads are cut off from the metal plate, or by a professional factory producing the required size, the material is asbestos rubber sheet, asbestos sheet, polyethylene sheet, etc.; also useful for sheet metal (white metal, stainless steel) to asbestos made of non-metallic materials such as metal pack wrapped gasket; there is a thin strip along with the asbestos with a winding made of spiral wound gaskets. Ordinary rubber gasket suitable for temperature below 120 ℃ occasions; asbestos rubber gasket applied to the steam temperature is below 450 ℃, on the oil temperature below 350 ℃, pressure of less than 5MPa occasions, for general corrosion medium, the most commonly used is the acid asbestos. In the high-pressure equipment and piping in copper, aluminum, 10 steel, stainless steel and the lens or other forms of metal gasket. High-pressure gasket and sealing surface of the contact width is very narrow (line contact), with the gasket sealing surface finish higher processing. Low voltage and small diameter wire connected flange, high pressure and low pressure large-diameter welded flanges are used, different pressure flange thickness and bolt diameter and number of connections is different.