What is the difference between spectacle blank flange and blind flange? Today I will explain in detail.

1. Different functions

Blind plate It is a flange without a hole in the middle, used to seal the pipe mouth.

Figure 8 blind plate is a kind of pipe with special channel parts, mainly for the convenience of maintenance, the specific shape of the "8" can be painted black in the upper part. It's a half-blind and half-hoop.

2. Different effects

The BLIND PLATE SERVES THE SAME FUNCTION AS THE head and tube cap, EXCEPT THAT THE blind plate seal is a deTAChable sealing device, and the seal of the head is not ready to be opened again. There are many types of sealing surfaces, including plane, convex surface, concave and convex surface, tenon surface, and ring connecting surfaces. Material: carbon steel, stainless steel, alloy steel, copper, aluminum, PVC, and PPR.

The figure 8 blind plate is usually used for pipe flanges that need to change the flow. The material is mainly carbon steel, stainless steel, and alloy. You can select it according to the pipe pressure level and pipe medium.

3. different characteristics

The blind plate is mainly used for the complete isolation of the production medium to prevent the production from being affected by the lax closure of the cut-off valve and even causing accidents. The blind plate should be set in the parts that require isolation, such as the equipment nozzle, before and after the cut-off valve or between the two flanges. The figure 8 blind plate is often recommended. For pressing, purging, and other one-time use parts can also use the plug plate (circular blind plate).

Figure 8 BLIND plate, easy to use, when isolation is needed, use the blind plate end, when normal operation is needed, use the throttle ring end, but also can be used to fill the installation gap of the blind plate on the pipeline. Another feature is the obvious logo, easy to identify the installation status.