The use of hydraulic pressure gauge mainly includes the following points: ?
Installation and maintenance of the pressure guide pipe: ? the thickness of the pressure guide pipe should be moderate, ? the general inner diameter is 6-10mm, ? length should be as short as possible, ? the longest is not more than 50m, ? to reduce the delay of pressure indication. ? When installing the pressure pipe horizontally, ensure that the inclination of 1:10~1:20, ? to facilitate the discharge of the accumulated liquid. ? When connecting the pressure gauge and the pressure guide pipe, ? should be installed with appropriate sealing gaskets, ? generally available asbestos sheet or aluminum sheet, ? high temperature and pressure can be annealed copper or aluminum gasket. ? at the same time, ? to consider the influence of the medium, ? for example, ? measuring oxygen pressure instrument can not use gasket with oil, ? when measuring acetylene pressure prohibited copper gasket, etc. 1. ?
Pressure gauge placement and use: ? pressure gauge should be placed vertically, ? when installing to tighten with a wrench, ? avoid directly by hand to avoid damage to the outer case. ? During use, ? should be careful to control the amplitude below one millimeter. ? At the same time, ? pay attention to the external environment temperature, ? control between -25 to 55 degrees, ? to ensure the normal work of the pressure gauge 2. ?
Regular inspection and maintenance: ? pressure gauge should be checked regularly, ? at least once every three months, ? timely detection and repair of any faults. ? The indicating range of the pressure gauge in use should be controlled between 1/3 and 2/3 of the maximum value ? to ensure the accuracy of measurement
