I’d like to ask gently about the model of the pressure gauge
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There is a pressure gauge of the YZ-100B type made by Anhui Tiankang. I understand what a vacuum gauge is, but the scale on this gauge is marked 100; what does the ‘B’ at the end mean?
B stands for stainless steel, but I really don’t know what YZ means; Tiankang’s samples don’t use this notation either. If it’s a diaphragm, having it at the front indicates a direct connection, while having it at the back indicates an axial connection. I’m not sure what applies in your case.
First digit: Y for pressure gauge, Z for vacuum, W for temperature. Second digit: N for shock resistance, Z for vacuum, T for special type, P for diaphragm type, E for membrane box type, M for diaphragm type, S for bimetallic type, A for ammonia use, O for oxygen use. XC for magnetically assisted electrical contact, XD for photoelectric electrical contact, XCg for magnetically sensitive electrical contact, XG for inductive electrical contact, SG for inductive transmitter. TZ for resistive remote transmission, TT for differential remote transmission, SS for bimetallic with single indication. Third digit: Digital value (indicating the diameter of the gauge enclosure). Fourth digit: B for stainless steel, L for threaded type, F for flanged type. Fifth digit: Z for shock resistance, F for corrosion resistance, FZ for both corrosion and shock resistance, D for positioning, L for retaining pin. Note: The meanings of the letter codes for diaphragm pressure gauges can be found in the overview of diaphragm pressure gauge components.
So what is the YEZN-100B?