Are the dial surfaces of diaphragm pressure gauges filled with liquid by default?
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Are the dial surfaces of diaphragm pressure gauges filled with liquid by default?
It would be best if everyone brought samples or photos of the actual items, to facilitate analysis.
I checked the samples from Tiankang and Shangyi; they don’t clearly state anything about filling the dial with liquid.
No, the filling in the dial serves to provide a certain degree of damping in seismic applications
No, customers can make requests
No, it’s not. The one filled with oil is a diaphragm shock-resistant pressure gauge
Silicone oil filling for shock absorption; choose according to needs~
Because I checked the sample, the diaphragm pressure gauge doesn’t give you the option to choose whether to fill it with oil or replenish the oil, like ordinary pressure gauges do.
It would be best to provide a sample that includes proof indicating whether oil filling is an option when selecting a diaphragm pressure gauge.
Yes, oil is used in vibrating applications to prevent the pointer from vibrating. But there is no option inside the diaphragm to choose whether to fill it with liquid or not.
This post was last edited by stone_HOTO on 2018-11-29 at 10:07. Diaphragm pressure gauges fill the space between the isolation device and the pressure gauge with a special sealing fluid. The working principle of a diaphragm pressure gauge is to place a separating device around the pressure gauge. 1. High-viscosity silicone oil: -10 ~ 200°C, 1.07, 0.95×10-3; used for high-temperature applications. 2. Low-viscosity silicone oil: -30 ~ 100°C, 0.94, 1.08×10-3; suitable for general use. 3. Glycerin aqueous solution: -5 ~ 100°C, 1.27, 0.61×10-3; used in food applications. 4. Vegetable oil: -5 ~ 100°C, 0.93, 1.03×10-3; used in food applications. 5. Fluorinated oil: -30 ~ 100°C, 1.93, 0.75×10-3; used in hydroxyl applications