Blind Flanges, BL Flange, BLRF, Long radius Blind Flanges, BL Flange, BLRF, Short radius Blind Flanges, BL Flange, BLRF, Stainless Blind Flanges, BL Flange, BLRF

The blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to a line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made. This reduction can be a threaded reduction or welded reduction.

Cabon steel: A105, A350 LF2

Stainless steel: A182 F304/F304L/F316/F316L/F321

Alloy steel: F11, F12

Packing: plywood case and plywood pallet

Specifications:

• ASME/ANSI B16.5 Class 150 BL

• ASME/ANSI B16.5 Class 300 BL

• ASME/ANSI B16.5 Class 600 BL

• ASME/ANSI B16.5 Class 900 BL

• ASME/ANSI B16.5 Class 1500 BL

• ASME/ANSI B16.5 Class 2500 BL

• ASME B16.47 Series A/MSS SP-44 Class 150 BL

• ASME B16.47 Series A/MSS SP-44 Class 300 BL

• ASME B16.47 Series A/MSS SP-44 Class 600 BL

• ASME B16.47 Series A/MSS SP-44 Class 900 BL

• ASME B16.47 Series B/API 605 Class 75 BL

• ASME B16.47 Series B/API 605 Class 150 BL

• ASME B16.47 Series B/API 605 Class 300 BL

• ASME B16.47 Series B/API 605 Class 600 BL

• ASME B16.47 Series B/API 605 Class 900 BL

• DIN 2527 PN10

• DIN 2527 PN16




Usage:

Flanges are integral parts of many engineering and plumbing projects. In many applications, engineers need to find a way to close off a chamber or cylinder in a very secure fashion, usually because the substance inside must differ from the substance outside in composition or pressure.

They do this by fastening two pieces of metal or other material together with a circle of bolts on a lip. This "lip" is a flange.

Plumbing

You can connect two sections of metal piping by soldering or welding them together, but pipes connected in this way are very susceptible to bursting at high pressures. A way of connecting two sections of pipe more securely is by having flanged ends that you can connect with bolts. This way, even if   liquids build up to high pressures inside the pipe, it will often hold with no problem.

Mechanics

In order to connect two sections of a large, enclosed area, it is often best to used flanges and bolts. An example of this is the connection between the engine and the transmission in an automobile. In this case, both the engine and the transmission contain a number of moving parts that can easily get damaged if they get dust or other small objects inside of them. By connecting the outer casings of the engine and transmission in this way, engineers protect the inner workings of both.

Electronics

Flanges have a specific purpose in cameras and other electronic devices. Though flanges in such items do not usually have to sustain high pressures, they do have to hold tight so they can keep out harmful particles. These flanges are usually found connecting two different materials, such as the glass of a lens and the rest of the body of the camera.

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