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Stainless Steel Pressure Gauge Failure Analysis - Focus on Microfluidic Control Technology
Stainless steel pressure gauges may have the following common faults:
One is that the pointer does not move or moves very little. The reasons may be the following: 1. The check valve is not open. 2. The pointer is loose. The end of the pointer touches the dial. 3. The center hole of the checker fitting seal washer is blocked and the working medium cannot be fed into the gauge. 4. The media in the checker cup is dirty, blocking the spring tube or transmission channel. 5. The rubber cup on the top of the checker screw is damaged or the spring tube breaks and causes a lot of oil leakage. Humidity Sensor Probe , , Stainless Steel Heater PT100 Sensor, , Cast Aluminum Heater, Heating Loop Fluid Solenoid Valve
The second is the pointer back down. Checker leak or oil cup needle valve is not smooth, resulting in poor sealability, or it may be spring tube cracks. These failures are common and easy to solve.
The third is the phenomenon of jump stitches. Gear teeth may have rust, wear, and dirt. Or the pointer shaft is tilted, and the bending is rubbed against the dial on one side.
The fourth is that the pointer does not return to zero, the return error and the tapping displacement are out of tolerance. The gossamer is not sufficiently tight or open, or the pointer is loose.
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