in order to avoidAir tightness detectorIn the case of unqualified air tightness testing equipment, we must learn how to judgeAir tightness detectorWhether to leakleak.Next, let’s take a look at its testing principle.

    Air tightness detectorPrinciple: The instrument inputs compressed air with accurately controlled pressure into the test piece, and then automatically shuts off the inflation air source.electromagneticThe valve accurately controls the air flow balance within the specified time, and then turns off the solenoid valve that plays a balancing role (the test piece is connected to one end of the balance valve, and the test piece is connected to the other end of the balance valve.One end cannot be connectedleaking standard parts), the air tightness is detected through a precision micro-differential pressure sensor connected to the same air path between the test piece and the standard part,within the specified timeThe differential pressure value between the standard part and the test piece is measured, and then the pressure generated by the actual leakage of the test piece is obtained through temperature compensation.The force drops, so as to judge the testAre the parts leaking?

    The air tightness of the device is one of the important factors to ensure the success of the experiment.The method to check the air tightness is: put the reaction device into the air tightness testercatheter inImmerse one end in water and place your palm against the outer wall of the reactor (or use an alcohol lamp to heat it slightly). If the device does not leak, the air in the container willExpansion by heat, conductionThere will be bubbles escaping from the mouth of the tube; after the container cools,Air tightness leak test machineThere will be water rising into the conduit to form a water column; if it is installedIf there is air leakage, there will be no airBubbles bubble up.  

     This article comes fromHai Ruisiautomation:Hai Ruisiautomation(http://www.hirays.com) high precisionAir tightness testing equipmentpioneer, focus on handsMachine waterproof testing, camera waterproof testing, IP waterproof level testing, wire waterproof testing, speaker waterproof testingWater testing and other seal inspectionstesting equipment.