Why oil filled pressure gauge used to cut before filling oil plug

Internal filling liquid, high viscosity damping oil filled pressure gauge is suitable for the environmental vibration, resists the pulsation of the medium, the impact and sudden unloading, instrument stability clear stability. Widely used in machinery, food machinery, pharmaceutical machinery, petroleum, chemical industry, metallurgy, mining, electricity and other departments, measurement of copper and copper alloy non-corrosive medium pressure. Why oil filled pressure gauge used to cut before filling oil plug? Below small make up for your answer! In the oil filled pressure gauge is installed, before using rubber plug should be a small hole, make it to the atmosphere or affect the accuracy of measurement. Don't cut off: the influence of high pressure gauge is no problem, you'd better cut it off and low pressure or poke a hole. The effect of oil filled pressure gauge at the top of the rubber plug: is to prevent oil leakage. Oil filled pressure gauge ( English name: pressure the gauge) Refers to elastic element as the sensitive element, measure and instructions above environment pressure meter, the widespread application, it almost throughout all of the industrial process and research fields. In the heat pipe network, oil and gas transmission, water supply, gas supply system, vehicle maintenance shop, etc can be seen everywhere. Especially in the process of industrial process control and technology measure, due to the flexibility of mechanical pressure gauge sensor has high mechanical strength and production is convenient wait for a characteristic, make the mechanical pressure gauge is widely used. A final note: filling oil plug easy ageing, used to replace the oil filled in time.