The following points should be clarified in the procurement and ordering of general pressure gauges: Storage Inverter,Energy Storage Inverter,Bi Directional Inverter,PV Bi Directional Inverter Jinan Xinyuhua Energy Technology Co.,Ltd , https://www.xyhenergy.com
1 Instrument name: It should be clear that it is a general pressure gauge, an oxygen pressure gauge, an electric contact pressure gauge, an ammonia pressure gauge, etc.;
2 meter model: different models for different manufacturers, but must be clearly written in the contract;
3 The outer diameter of the meter: Φ40, Φ60, Φ100, Φ150, Φ200, Φ250.
4 Installation method: radial, axial, with front and rear.
5 measuring range: vacuum gauge - -0.1MPa
Pressure gauge - measuring upper limit pressure vacuum - measuring range
6 accuracy level: 1.0; 1.6; 2.5; 4.0
7 joint thread: M10X1; M14X1.5; M20X1.5
In the procurement and ordering of special pressure gauges, in addition to the above points, the following points should be specified according to different pressure gauges:
1 Instrument name: diaphragm pressure gauge, anti-corrosion pressure gauge, shockproof pressure gauge, bellows pressure gauge, etc.
2 pairs of diaphragm pressure gauges:
a According to different purposes, it should be clear that the filling liquid in the spring tube (silicone oil, glycerin, edible oil, fluorine oil, etc.)
b According to the corrosion of the measured medium, the material of the diaphragm (such as SUS316, tantalum, titanium, Monel, Hastelloy, coating, etc.) should be clarified.
c If flange connection, the flange implementation standard, size, material, etc.
3 pairs of seismic pressure gauges should be clearly defined in the case of damping fluid (silicone oil, glycerin, etc.)
4 Anti-corrosion pressure gauge should be based on the corrosiveness of the tested medium or the corrosiveness of the working environment, and the materials of joints, spring tubes and cases, etc.