Flanges are circular plates with a few holes around them for winding. The thickness and number of holes are determined according to the standards. Introduction of flanges with two nominal diameters of the flange to the inch (which is equal to the diameter of the pipe to which the flange is connected) and the flange class, which is the maximum amount of pressure in PSI at maximum temperature. Flanges are a type of line connector for valves or other equipment, or for flange pipe fittings and closing a line.
different types of flange pipe fittings
As the name implies, this flange has a chamber in which the tube is placed. If this flange is welded from the inside, its fatigue resistance is one and a half times and its static resistance is equal to the Slip-on the flange. One of the advantages of these flanges is that they do not require welding. Of course, if necessary and high pressures, welding can also be used in them. The efficiency of this flange is high pressure.
This flange actually has the same flange and in some cases, it has a surface that has holes in the direction of the radius. These holes are used to measure the flow of liquid or gas. According to this standard, steel flanges and their alloys are divided into classes 150-300-400-600-600-900-1500-2500. These numbers are the pipe flanges pressure according to PSI that the flanges can withstand the maximum allowable temperature and usually the operating pressure is about 2.4 times The above numbers (the relationship between pressure and temperature for different sexes is specified in the above standard).
Supplying flange pipe fittings at large amount
In these flanges, when the connection is made, the surface of the two flanges used must be smooth. Its main use is when we use two flanges for the system or water 4 inch pipe flange that are made by casting. Usually, cast iron flanges or Steels that are used at low pressures are made of this type. According to the flange standards (ASME B31.1), when the simple surface flange is connected to the carbon steel flanges by iron molds, the protruding surface flanges must be removed.
This flange must be made in pairs. The surface of one of the flanges has a protrusion and the other surface has a protrusion. Depth of soil to a pan, which impedes rooting. The use of male and female flanges can be seen in the shell of the heat exchanger to the flange channel and cover. Of course, for a flange connection, for example in a valve, two flanges are installed on both sides of the valve, which are connected to the two flanges at the two ends of the line by a screw.