Q:To set the price

I checked it on the InternetThere are several kinds of this one you sayThe cheapest is more than 100, and the most expensive is five hundred

Q:Who knows, the difference between plate flange and hubbed flange in the application.

In the words of the most popular bar, welding plate flange is inserted into the pipe flange to weld. There is a small tail behind and hubbed flange means, the outer diameter is relatively small tail pipe diameter is the same. That's what it means to put this little tail against the tube and weld it together.

Q:What does the Rc-RF in the flange stand for? What do they stand for?

Rc is the threaded flange,The internal teeth are 55 degrees of degree of PT teeth, the standard of the teeth, the Japanese standard is JIS B0203, the European standard is ISO, the 7-1 German standard is DIN 2999,RF, as mentioned upstairs, means that the sealing surface is bulging

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

According to the different grades of pressure, the flange pad also has different materials, from low pressure asbestos pad, high pressure asbestos pad to metal padFlange connection is easy to use and able to bear greater pressureIn the industrial pipeline, using flange connection is very extensive. Within the family, the small diameter of the pipe and low pressure, see flange connection. If a boiler room or a production site, everywhere is the flange connection of pipes and equipment.

Q:Dn is 250, Pn25 flange, what is the hole distance?

Flange center hole distance d1=370mmFlange diameter D=425Aperture 30Bolt M27

Q:Flange valve Q41F-16C/P/R mark, specific meaning?

This is standard regulation, according to "JB/T 308 - 2004 valve type programming method" regulation:Q= ball valve4= connection type: flange1= structure: floating ball direct flow channelF= sealing surface material: fluoroplastic-16= nominal pressure: 1.6MPaC= body material: carbon steelP= body material: chrome nickel stainless steel, such as: 304R= body material: chromium, nickel, molybdenum stainless steel, such as: 316

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:What is the reverse flange?

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:Flange SO40-2.

Is this the flange of HG/T20592-97?SO represents the flange type "hubbed flange"; 40 represents the nominal diameter is 40mm; 2.5 represents the nominal pressure is 2.5MPa;

Q:What's the flange body?

The flange is lined with bolts to secure the two flanges. Gaskets for gaskets between flanges. Flange, threaded connection (wire), flange and welding flange.