Precautions for valve fittings for 12hp industrial freezer freezing

12hp industrial freezer freezing is to inject chilled water into the flow channel inside the material, cool and maintain a constant temperature through heat exchange, and maintain the temperature in a constant state to meet the needs of
the production process.
Therefore, since the various valves in the 12hp industrial freezer freezer freeze play the role of regulating and controlling the flow of
gases and liquids.
So, what should users pay attention to
? 1.
Therefore, the quality of the valve in the freezing of 12hp industrial freezer plays an important role in the normal operation of the equipment system, and at the same time, the operation of the valve accidentally causes the leakage of the valve (including external leakage and internal leakage), the deformation, bending, fracture, etc.
of the valve will affect the normal operation
of the system.
2.
Some failures of valves are often caused by
improper use.
If it is found that the flow rate passing is insufficient, mistakenly believe that the valve is not opened or the opening is not enough, open it again, and use the method of extending the force arm when opening by hand and use too much force to cause the valve stem to be deformed, bent, broken, etc
.
3.
Therefore, the correct use of valves is a strong guarantee to
reduce valve failures.
Care should be taken to prohibit excessive force and lengthening the force arm
when opening and closing.
4.
The packing in the packing room sealed by the valve stem should not be too much or too little, and it is appropriate to press down the basic ability of the gland, and at the same time, there should be a certain amount of lubricating oil
in the packing room.
In order to avoid leakage along the stem, reduce dry friction, prevent the bite of the stem, so as to achieve flexible
valve opening and closing.
5.
When closing, if it cannot be closed tightly, the valve core can be raised a little more (such as the valve handwheel rotates 1~2 times in the opening direction), so that the high-speed medium flow in the system washes the valve core and valve seat to remove the particle impurities on the valve seat and valve core, and then close it once again
.
6.
The handwheel on the valve shall not be taken down at will for other purposes to avoid being found
in case of emergency use.
For fluorine valves that are operating normally or after shutdown, the sealing cap should be tightened to avoid leakage
of refrigerant from the stem.
7.
Under normal circumstances, other tools (such as wrenches) should not be used instead of valve handwheels
.
8
.
If it is necessary to disassemble for repair, first cut off the end of the valve to be removed from the system, that is, close the relevant valve, and then open the compressor to drain the refrigerant in the pipeline between the valve and the relevant connection as much as possible.