JIS 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 hole 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 detachable sealing device, and the seal of the head is now now now now no longer geared up to be opened again. There are many kinds of sealing surfaces, which consists of plane, convex, concave and convex surface, tenon and groove floor and ring connection surface. The factors are carbon steel, stainless steel, alloy steel, copper, aluminum, PVC and PPR.



From the show off up of the blind plate, it is usually divided into plate variety flat blind plate, mother or father eight blind plate, plug board, and gasket ring (plug board and gasket ring are blind to each and every other). The blind plate performs the attribute of isolation and cutting, and the characteristic of the head, pipe cap and welding plug is the same. Due to its amazing sealing performance, it is generally used as a reliable plausible of isolation for constructions that require whole isolation. A flat plate blind is a sturdy circle with a cope with that is used in constructions that are usually isolated. The figure-8 blind plate is one-of-a-kind like a figure-8, one provide up is a blind plate, and the extraordinary furnish up is a throttle ring, on the specific 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 desires to be isolated, the blind plate stop is used, and when each and every day operation is required, the throttle ring quit is used, and it can in addition be used to fill the set up gap of the blind plate on the pipeline. Another attribute is that it is in fact marked and reachable to hit upon out out the set up status.

Production process

Generally, there are four types: forging, casting and forging, medium plate cutting, and casting. Among them, the charge of forging merchandise is the highest, accompanied with the beneficial useful resource of the use of way of medium plates, and casting and forging is the lowest. Casting is the most most relevant process. The pinnacle notch is desirable 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 electricity take a show off up at or tightness take a exhibit off up at of the pipeline can no longer be carried out at the equal time as the associated tools (such as turbines, compressors, gasifiers, reactors, etc.), a blind plate have to be set at the connection between the gear and the pipeline.

2. When the system is stopped, if the pipeline is then as rapidly as extra in operation, a blind plate is set at the shut-off valve.

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

4. When the gadgets want to be normally maintained, inspected or switched with each and every other, and the gear worried wants to be barring a doubt isolated, a blind plate is set at the shut-off valve.

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

6. If the method medium desires to be headquartered in a unified collection system, a blind plate have to be set up in the decrease as soon as extra of the shut-off valve.

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

8. When the computer is constructed 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 gadget is in every day production, some auxiliary pipelines that parent out upon to be barring a doubt keep away from off ought to in many instances be set up with blind plates.