|信息来源： 华恒 | [ 2019-04-24] 点击量： 970|
What occasions do pressure gauges require mandatory verification?Xi'an Huaheng Instrument will introduce the classification information for you.
1.Pressure gauges for safety protection need to be mandatory verification.It includes the following seven categories:
A.Measurement of main cylinder and feed water pressure position of boiler;
B.Measurement of the pressure of the wind silo and main pipe of the fixed air compressor;
C.Measurement of oil pressure and locomotive pressure of generators and gas turbines;
D.Measurement of pressure of medical high-pressure sterilizer and pressure cooker;
E.Pressure measurement with alarm device;
F.Measurement of pressure of sealed pressurized vessel;
G.Measurement of pressure in hazardous,toxic and corrosive media.(e.g.spring tube pressure gauge,teletransmission pressure gauge and contact pressure gauge).
2.The air pressure gauge used for safety protection needs compulsory verification.That is to say,the measurement of air pressure and speed in mine roadway.(e.g.mine anemometer and mine anemometer).
3.Oxygen meters for safety protection need to be mandatory verification.It includes the following two categories:
A.Measurement of oxygen monitoring pressure during filling oxygen cylinders;
B.Measurement of oxygen pressure which is explosive and affects safety in process.
4.Oxygen meters for medical and hygienic purposes need to be mandatory verification.That is to say,the measurement of oxygen pressure on buoy oxygen inhaler and oxygen supply device for hospital oxygen delivery.