Reuse of silicone oil-leaked diaphragm boxes
Thread Content
During the production process, we often find that the pressure or differential pressure (either with a single flange or double flanges) remains almost unchanged. Upon inspection, it is found that there is a lack of silicone oil in the diaphragm box (a situation that cannot be avoided), which results in poor pressure transmission. After replacing it with a new gauge, normal operation was restored, but similar problems occurred after using it for a certain period of time, making the cost too high. Can a diaphragm box that lacks silicone oil be refilled with silicone oil again, and is the accuracy of its use guaranteed? Please, colleagues, help me out!
It can be refillable. Does your factory replace the meters directly? ? ? :o Perform migration zeroing after filling.
“Can a diaphragm box lacking silicone oil be refilled with silicone oil a second time? Of course it can. Secondary filling is more troublesome than single filling, much more so, especially when it comes to warm tonics – it’s extremely difficult. In terms of labor time, it takes about 5 to 15 times more time. :Lol, fixing watches is a time-consuming task; it requires a lot of effort yet doesn’t yield good results, and it can even make your hands smelly —— :hug:.
Silicone oil can be refilled twice, but generally silicone oil provides good sealing properties; high-quality silicone oil will not run out of oil
1. Under normal use, it should not malfunction; therefore, the cause of the silicon oil leakage needs to be identified. A. Crystallization or freezing can lead to membrane failure； B. Dielectric corrosion diaphragm ； C. The silicone oil type does not match the operating temperature ； D. Improper use or installation, operation under overpressure ； 2. Domestic manufacturers of transmitters can carry out repairs at approximately one-third of the original price, involving the refilling of silicone oil and repairs, with test records required ； 3. It is recommended to use the repaired transmitter at a reduced capacity, that is, to use it solely for pressure indication only, and not in interlock and control circuits.
Sure, no problem. At our factory, we simply refill the oil and replace the diaphragm, then verify that everything is fine before putting it into use; moreover, its service life is quite good
When it comes to repairing instruments, if their performance cannot be restored to its original level and it’s far from being as good as before, can that really be called “repairing”? That’s complete nonsense :lol Oiling the diaphragm isn’t difficult at all; I can teach an illiterate person in just one day, and after 10 days that person will be an expert at it and able to perform this task for the rest of their life. The key technique for oil filling is temperature control; if this control isn’t done properly, the temperature errors can be enormous, and the accuracy of the instruments becomes terrible. Get it? Turning the instruments into useless junk is some people’s hobby. :lol
If any forum members know of good repair services, please introduce them to me. I’ve found a repair shop with decent skills, but their prices are too high – they’re already more than half of the original cost. I have to repair 30 to 40 units each year; if the price is reasonable, I can enter into an annual maintenance contract
Just remove the diaphragm box and use it as a differential pressure transmitter
The rival is that one with the narrow eyes; they can’t be blocked
No need; removing the flange has the same effect as the differential pressure