Is the 206 kettle double-end face mechanical seal a modular mechanical seal?
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If a hydrostatic test is used, can water be introduced at the inlet and outlet of the cooling water to check for leaks in the axial direction? Is it necessary to install blind flanges at the shaft ends? This mechanical seal has liquid inlet and outlet ports (there is a lubricant level gauge on one side, while the other side is sealed off with screws), as well as cooling water inlet and outlet ports (water enters from below and exits from above). I would appreciate it if experts could help answer this question. Thank you
Cooling water is used for temperature reduction; it enters through the cooling water inlet, and the water does not come into contact with the seal
This structure cannot be subjected to a static test using the cooling water inlet and outlet pressures, as these are used to supply water to the cooling jacket; a static test should instead be carried out using the sealant fluid inlet and outlet.
The cooling jacket is the sealing chamber of the mechanical seal, right? It’s essentially used to cool the sealant of the mechanical seal, is that how it can be understood?
It must be a container seal! The hydrostatic test must be determined by applying pressure with an isolating fluid! It is generally sufficient to have a pressure 0.1–0.2 MPa higher than that of the medium, with this pressure being maintained for 15 minutes; the cooling water is used to cool the isolation fluid ； Didn’t you understand the structure diagram? ?
The double-end mechanical seal used for vessel 206 is a modular-type seal; hydraulic testing is generally employed, but the use of water is not recommended. Instead, intermediate products from this vessel or other non-toxic and non-corrosive liquids should be used. Pressure is applied to the inlet and outlet of the sealing fluid, while the other side is sealed off with screws. Let it stand for 30 minutes to check for any leaks; the static leak test is now complete. After the installation in the main vessel is completed, repressurize it and make markings; then run it without load for 30 minutes to check for any leaks or a drop in pressure, thereby completing the dynamic leak test. Cooling water is used to cool the mechanical seal fluid.