How to test pressure gauge

1. Brief introduction of pipeline pressure test pressure gauge The pipeline pressure test pressure gauge uses stainless steel material as the elastic element. The main materials are icr18Ni9T, Ocr18Ni12Mo2Ti, sus316, etc. The pipeline pressure test pressure gauge has strong corrosion resistance and environmental corrosion resistance. It is suitable for highly corrosive media, high temperature occasions and harsh external corrosive environments. Pipe pressure test pressure gauges are widely used in petroleum, chemical, metallurgy, food and other industrial fields for pressure measurement.
2. Structure principle of pipeline pressure test pressure gauge The pipeline pressure test pressure gauge is composed of a pressure guiding system (including joints, spring tubes, current limiting screws, etc.), gear transmission mechanism, indicating device (pointer and dial) and housing (including watch case) , Watch cover, watch glass, etc.). The pressure gauge passes the elastic deformation of the stainless steel sensitive elements (Bourdon tube, membrane box, bellows) in the table, and then the conversion mechanism of the movement in the table transmits the elastic deformation to the pointer, causing the pointer to rotate to display the pressure. For the instrument filled with liquid (usually silicone oil or glycerin) in the shell, it can resist the vibration of the working environment and reduce the pulsation effect of the medium pressure.
3. Technical parameters of pipeline pressure test pressure gauge
Pipeline pressure test pressure gauge model Y-60BF, YN-60BF, Y-100BF, YN-100BF, Y-150BF, YN-150BF
Pipeline pressure test pressure gauge accuracy grade 2.5, 1.6
Pipeline pressure test pressure gauge measurement range MPa 0.1; 0.16; 0.25; 0.4; 0.6; 1.0; 1.6; 2.5; 4; 6; 10; 16; 25; 40; 60; 100;
-0.1 ～ 0.15; -0.1 ～ 0.3; -0.1 ～ 0.5; -0.1 ～ 0.9; -0.1 ～ 1.5; -0.1 ～ 2.4
Pipe thread test pressure gauge interface thread M14X1.5Z / 4 "(NPT) G1 / 4" M20X1.5Z / 2 (NPT) G1 / 2 "G3 / 8"
Ambient temperature of pipeline pressure test pressure gauge -40 ～ 70 ℃
Environmental vibration frequency of pipeline pressure test pressure gauge is not greater than 25HZ
Pipe test pressure gauge ring width is not greater than 1MM
4. Installation of pipeline pressure test pressure gauge
The pipeline pressure gauge should be installed in a conspicuous, straight section of the pipeline, without vibration, and pay attention to the static pressure difference caused by the system medium itself. The pipeline pressure test pressure gauge should use a special pressure gauge joint, so that the pressure surface can be adjusted at any angle without affecting its tightness. A shut-off valve should be installed in front of the pipeline pressure test pressure gauge to facilitate replacement and regular calibration of the pressure gauge There should be a buffer device in front of the pressure gauge so that the pressure pointer does not jump. In particular, there are strict accuracy requirements for pressure gauges for check and pressure test. The pressure dial of pipeline pressure test has different diameters, and it should be selected according to the sight distance.

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