DIN Blind Flanges

The formal title of blind disk is Flange cover, and some are in addition referred to as blind flange or pipe plug. It is a flange barring a gap in the core and is used to seal the pipe opening. The attribute is the equal as that of the head and cap, barring that the blind seal is a removable sealing device, and the seal of the head is now now now now no longer geared up to be opened again. There are many sorts of sealing surfaces, which consists of plane, convex, concave and convex surface, tenon and groove flooring and ring connection surface. The elements are carbon steel, stainless steel, alloy steel, copper, aluminum, PVC and PPR.



From the showcase up of the blind plate, it is normally divided into plate kind flat blind plate, mom or father eight blind plate, plug board, and gasket ring (plug board and gasket ring are blind to every other). The blind plate performs the attribute of isolation and cutting, and the feature of the head, pipe cap and welding plug is the same. Due to its remarkable sealing performance, it is commonly used as a dependable workable of isolation for constructions that require entire isolation. A flat plate blind is a sturdy circle with a cope with that is used in constructions that are generally isolated. The figure-8 blind plate is one-of-a-kind like a figure-8, one supply up is a blind plate, and the magnificent furnish up is a throttle ring, on the special hand the diameter is the equal as the diameter of the pipe, and it does no longer play a throttling role. The figure-8 blind plate is reachable to use, when it needs to be isolated, the blind plate end is used, and when every day operation is required, the throttle ring end is used, and it can in addition be used to fill the set up hole of the blind plate on the pipeline. Another attribute is that it is in reality marked and reachable to locate out out the set up status.

Production process

Generally, there are 4 types: forging, casting and forging, medium plate cutting, and casting. Among them, the fee of forging merchandise is the highest, accompanied with the useful resource of the use of way of medium plates, and casting and forging is the lowest. Casting is the most most applicable process. The pinnacle notch is suited for forging and core plates, and the casting and forging are barely worse.

Where the blind plate is applied

1. In the unique start-up practise stage, when the power take a exhibit up at or tightness take a show off up at of the pipeline can no longer be carried out at the equal time as the related equipment (such as turbines, compressors, gasifiers, reactors, etc.), a blind plate have to be set at the connection between the equipment and the pipeline.

2. When the device is stopped, if the pipeline is then as quickly as more in operation, a blind plate is set at the shut-off valve.

3. When the laptop computer laptop is multi-series, the predominant pipeline from out of doorways the boundary local is divided into loads of pipes to enter every and each series, and a plate is set at the shut-off valve of every sub-pipeline.

4. When the devices desire to be generally maintained, inspected or switched with every and each other, and the equipment involved needs to be barring a doubt isolated, a blind plate is set at the shut-off valve.

5. When the strategy pipeline of the pressurized pipeline and the displacement gas pipeline (such as nitrogen pipeline and compressed air pipeline) is related to the equipment, a plate is set at the shut-off valve.

6. If the strategy medium wishes to be centered in a unified series system, a blind plate have to be set up in the reduce once more of the shut-off valve.

7. The exhaust pipe, liquid discharge pipe and sampling pipe of equipment and pipeline choose to be furnished with blind plate or plug in the as soon as extra of the valve. Except for property that are non-toxic, non-hazardous to fitness and non-explosive hazards.

8. When the pc is built in stages, the interconnected pipelines are set up at the shut-off valve to facilitate the subsequent inserting up of the project.

9. When the computing device is in each day production, some auxiliary pipelines that discern out upon to be barring a doubt avoid off ought to commonly be set up with blind plates.