Q:To set the price

The cheapest is more than 100, and the most expensive is five hundred

Q:Who can tell me what "DN" and "PN" mean in flanges, and what does PN16 stand for?

DN----- through the flange -- such as pressure DN15. with Phi 18 DN25.

Q:I would like to ask this flange type in the end what is the shape, why is it called flange type?

Flange typeFlange connection is an important connection way for pipeline constructionFlange connection is the two pipes, fittings or equipment, each first fixed on a flange on the flange between the two, and flange pad, fastened together with bolts to complete the connection. Some fittings and equipment have built flange, flange connection also belongs.

Q:Do I need flanges for rubber joints?

There are two carbon steel flanges at both ends of the product,Some customers also need counter flanges.

Q:What's the DN100 flange?

DN100 flange refers to the nominal diameter of 100mm flange.Flange connection or flange joint means that the flange, the shim and the bolt are mutually connected as a group of three detachable sealing structures. Pipe flanges are flanges used for piping in pipe installations. They are used on equipment and refer to the entrance and exit flanges of the equipment. The flange is lined with bolts to secure the two flanges. Gaskets for gaskets between flanges. Sub threaded flange connection (threaded connection), flange welding flange and flange clamp. Flanges are used in pairs. Low pressure pipes can be made of wire flanges and welded flanges with pressures of more than four kilograms. Add a gasket between the two flanges and secure with bolts. Different pressure flange thickness is different, they use the bolt is also different. Water pump and valve, and in the pipe connection, these equipment parts of the equipment also made corresponding flange shape, also known as flange connection. Any connecting parts that are bolted and closed in the vicinity of the two planes are generally referred to as flanges, such as the connections of the ventilation ducts, which can be called flanges". However, this connection is only part of a device, such as flanges and pumps connected, it is not good to call the water pump flange parts". Relatively small, such as valves, can be called flanges".

Q:Now in chemical, flange pn2.

Nominal pressure PN (=2.5MPa):Reference value relating to the pressure resistance of piping system componentsWorking pressure is the maximum continuous running pressure acting on the inner wall of a pipe under normal working conditions.

Q:Flange German standard DIN, pleaseND16 what does that ND mean?It's ND in German standard DIN, not nominal diameter DN

Should mark "DN", is the nominal diameter of the code.Is the nominal diameter size after the roundness of the numerical repair to the mantissa, in order to simplify the mark.Germany, China ISO, nominal diameter are DN.

Q:What do you mean by flange?

According to the connected components can be divided into container flange and pipe flange. According to structure type, integral flange, loose flange and threaded flange. Integral flange are common flange and butt welding flange. Less rigid flange, suitable for pressure P is less than or equal to 4MPa occasion; also called high neck flange flange, rigidity, suitable for high pressure and high temperature conditions. The flange sealing surface of the three types: planar sealing surface for the pressure is not high, medium non-toxic occasions; uneven sealing surface, suitable for higher pressure situations; the sealing surface of the tenon, for Yu Yiran, explosive, toxic medium and high pressure the occasion. Gasket is a can produce made of plastic deformation, and has a certain strength of the material.

Q:RJ what flange is the sealing surface?

RJ is the flange ring connection surface.Flange sealing surface type:Full plane FFProjection RFConvex MConcave FTenon face TGroove surface GRing joint surface RJGeneral concave convex MFTongue and groove face TG

Q:Is the flange fitted with a flange?

However, this connection is only part of a device, such as flanges and pumps connected, it is not good to call the water pump flange parts". Relatively small, such as valves, can be called flanges".The movable flange is sheathed on the end of the pipe by using a flange, a steel ring, etc., and the flange can be moved on the pipe end. Steel ring or flanging is the sealing surface, the role of the flange is to compress them. Thus, because of the steel ring or flange block, the live flange is not contact with the media. Because the flange is movable, not directly connected to the pipe, so it is called "live flange", there is another statement called loose flange.