The Lever Is A Half-turn Valve Used To Empty The Pressure Gauge

• Posted by wanlong changshu April 28, 2021 - Filed in Business - #Vacuum pressure gauge Manufacturers，Glycerine filled manometer  - 676 views

  　　Okay, so how to properly empty the Glycerine-filled manometer filled with liquid?

  　　Before picking up the scissors, it is a good habit to know that there are actually two different styles of filling plugs. The first thing to do is to determine which filler plug comes with the pressure gauge produced by Vacuum pressure gauge Manufacturers. Some pressure gauges provide a one-piece "solid rubber" style, while others provide a two-piece "lever" type filling plug. As shown in the figure, the type of filling plug on the selected instrument can be easily distinguished.

  　　Solid rubber type

  　　To properly empty the solid rubber filling plug, simply cut off the tip of the plug. The tip of the plug will open a small hole so that the gauge can drain. The solid rubber plug does not allow the vent to be closed when the meter is used in a non-upright position. These are the most common types of filler plugs, as most applications do not require horizontal installation.

  　　Leverage type

  　　The lever on this Glycerine-filled manometer is closed when delivered and must be opened during installation to prevent any pressure build-up in the housing. The lever is a half-turn valve used to empty the pressure gauge by moving the valve to the open position. This allows the pressure gauge to breathe, releasing any pressure or vacuum built up inside the housing. If you install the pressure gauge in a vertical position, you can leave the lever in the open position.

  　　The lever style does allow the pressure gauge to be used in a non-upright position. This can be done by moving the valve to the closed position to prevent liquid leakage. However, if the temperature fluctuates, this installation may cause errors.