How to determine the model of a mechanical seal
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One of the double-suction pumps in our workshop needs to have its packing seal replaced with a mechanical seal. I would like to ask experts how to determine the appropriate model for a mechanical seal and what considerations should be taken into account when selecting one. I am considering using a mechanical seal with a single face.
Just tell the manufacturer about the medium, temperature, and other conditions, and they will help you make the choice. :lol
Are there any successful experiences? Could you share it? I have a question: how can we ensure that the horizontal cutting plane is perpendicular to the sealing surface of the mechanical seal?
Our company uses the Borgmann M7N single-face, unbalanced type with arbitrary rotation direction; moving part: YWN8, stationary ring: YG6, auxiliary seal: NBR; springs and metal components: 304
The dimensions of the shaft and those of the sealing chamber also need to be specified
The mechanical seal must be selected based on the diameter of the pump’s main shaft, and changing the mechanical seal requires remaking the end cover as well
Quick method for selecting mechanical seals: 1. First, determine whether to use a single-face or double-face seal based on your operating conditions； 2. Then, select the appropriate sealing compensation method based on the medium and operating temperature ； 3. Next, the materials for the sealing surface and auxiliary seals, as well as the materials for the structural components, are selected based on the chemical properties of the medium ； 4. Next, determine the specific model by considering the dimensions of the pump’s sealing chamber ； 5. Finalize the flushing and cooling methods for sealing.
One item was missed:,loveliness: 4. Then determine the specific model based on the shaft diameter and the size of the sealing chamber! I’m sorry