A stainless steel pressure gauge is composed of a measuring system (including stainless steel joints, spring tubes, gear transmission mechanisms), an indicator part (including pointers and dials), and a case part. The measurement system is entirely made of stainless steel parts, with good corrosion resistance.
The working principle of stainless steel pressure gauges is based on the deformation of elastic elements - spring tubes. The measured medium enters the spring tube through the joint, causing displacement at the end of the spring tube. This displacement is transmitted and amplified through the pressure transmission mechanism of the connecting rod, allowing the pointer to indicate the pressure of the measured medium on the dial.
Stainless steel pressure gauges should be used in places where the ambient temperature is -40 ℃ -+70 ℃ and the relative humidity is not greater than 85%, and where vibration or rapid pulsation of the measured medium does not affect reliable contact and accurate transmission readings. After the electrical circuit is set up and connected, it should be carefully inspected and tested.
When adjusting the given value of a stainless steel pressure gauge, it is necessary to use a slotted screwdriver. When measuring static load, it can be used up to 3/4 of the measurement limit. When measuring alternating load, it can be used up to 2/3 of the measurement limit. For instantaneous measurement, it can be used up to the measurement limit value.
That's all for the introduction about stainless steel pressure gauges above. I hope it can be helpful for your understanding.