How to connect pipes to the outlet of an enamel-lined reaction kettle?
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It was found that the pipe connections of enamel reaction kettles differ from those of standard chemical industry flanges (HG/T 20592), and they have their own set of specifications. I used to think that chemical industry standard flanges were being used. So how are the pipe ends connected to pipes using flanges?
The pipe openings of enamel reaction kettles typically use special flanges, which differ from ordinary chemical industry flanges and are designed specifically for enamel-lined equipment. At the time of takeover, it is necessary to select an appropriate enamel-specific flange based on the specifications of the reactor’s pipe outlet, and then fasten the flange to the pipe outlet using bolts. After that, the pipeline is connected to the flange through welding or other connection methods. Ensure that all connections are properly sealed to prevent leaks. .
The pipe ends of enamel reactors have 1. Slip-on flange pipe ends in accordance with HG/T 2105； 2. Pipe ends in accordance with HG/T 2143. If it is a loop flange, a corresponding loop flange should be used; for the second type that lacks bolt holes, it is likely that clips are used to hold the two flanges together.
Yes, regarding the pipe connections for enamel-lined reaction vessels: 1. For pipe ends with swivel flanges in accordance with the HG/T 2105 standard, swivel flanges of the appropriate specification can be used directly for connection. The loop flange allows the pipeline to move freely within a certain range, facilitating installation and maintenance. 2. For pipe ends in accordance with the HG/T 2143 standard, this type of pipe end is usually designed to be flat or in some other shape, without pre-installed bolt holes. For such pipe ends, snap-fit flanges or other specially designed clamping devices can be used to securely connect the pipe to the flange. This type of connection usually requires ensuring good sealing between the flanges to prevent leaks. During installation, it is essential to ensure that all connections meet the specified requirements strictly, in order to guarantee the safe operation of the equipment. .