Q:The connection between the air outlet and the air duct can straddle the flange

Can not.The air outlet must be connected directly to the air duct. If the size of the air outlet is larger than the length of the air duct, a suitable length of air duct must be made to facilitate the connection of the air inlet.The reason is: according to JGJ141-2004 "ventilation pipe construction technical regulations" requirements, different specifications of the wind pipe have the corresponding stiffness requirements, otherwise, must be reinforced. The tuyere destroys the integrity of the flange, which affects the stiffness of the duct.

Q:A metal pipe nominal diameter 1200, using flange connection. In the original installation technical requirement, "parallelism: tolerance is 1mm/1000mm". How do you measure parallelism? What does this "1mm/1000mm" mean? How do you explain that?Another: flange roughness and how to measure and explain??

The control problem, method of measurement of parallelism is the datum plane placed on the plate, with a dial indicator to measure the surface within a range of 1200 error value does not exceed 1.2 mm.Flatness, in mechanical drawings, shapes and positional tolerances, is popularly known as flatness, defined as the maximum variation of the measured plane and the ideal plane in the tolerance range. The flatness of the reference plane requires a higher level.If the flatness of the reference plane of the flange is strict, the parallelism can be checked with a vernier caliper.

Q:What do you mean by flange?

Most ring gasket is from non metal plate cutting down, or by professional plant size, the material for asbestos rubber Board, asbestos board, polyethylene plate; also useful thin metal plate (Bai Tiepi, stainless steel) asbestos nonmetal materials such as wrapping made of metal gasket; and a belt winding and asbestos tape with thin steel and the spiral wound gasket. The ordinary rubber gasket for temperature below 120 DEG C applications; asbestos rubber gasket is suitable for steam temperature lower than 450 DEG C, the oil temperature is below 350 DEG C, the pressure is lower than the 5MPa of the occasion, for general corrosive medium, is the most commonly used acid asbestos board. In high pressure equipment and piping, metal gasket with lens type copper, aluminum, stainless steel, No. 10 made of or other shapes. High pressure gasket and sealing surface of the contact width is very narrow (line contact), finish machining and gasket sealing surface of high degree.

Q:How about copper tubes? TenCan plastic pipes be flanged? Can it bear the pressure of the bolt?

Both flanges can be connected. The flange is the joint of the pipe and the pipe.Different media, the choice of flange material is different.You say plastic pipes can also come through flanges. Flanges are usually made of nonmetallic material.Teflon can also be done. The wear resistance of PTFE is chenchen.

Q:Magic Baby, where is the entrance to the North Garden of flange city?

This way, even if it's the garden entrance. Go in, just this way.Walk to 494.73 and turn south, and you'll see a bunch of different flowers.

Q:Flanges of different sizes

If the outer diameter is not big, the bolt hole, the middle diameter and the bore diameter can be unified. If the specifications are different and can not be directly connected, you can use the big head as an excessive.

Q:What does "-150# SO/FF" mean by flange 4?

Size: 4"Pound level: 150#SO: flat with neckFF: flat surface (flange sealing surface)

Q:What's the difference between RF flange and RJ flange?

The difference between the RF flange and the RJ flange is that the seal is different.RF flanges are flat sealsRJ flange is steel ring seal

Q:What's the flange body?

Flanges (Flange) are also called flanges or flanges. The flange is the part that connects the pipe to the pipe and is connected to the end of the pipe.

Q:What is the SO flange?

The chemical industry standard (HG) method: PL--, SO-- flange flange neck flange,WN-- butt welding flange......