原装进口UE防爆开关J120-530,J120-531,J120-532（Original imported American UE explosion-proof pressure switch J120-530, J120-531, J120-532 ）

Original imported American UE explosion-proof pressure switch J120-530, J120-531, J120-532  welded 216L stainless steel diaphragm and 1/ 2NPTF pressure port, 0.72 large inner hole for easy cleaning The working principle of the pressure switch: When the pressure in the system is higher or lower than the rated safety pressure, the disc in the sensor moves instantaneously, and the switch joint is connected or disconnected by connecting the guide rod. When the pressure drops or rises When the rated recovery value is reached, the disc resets instantaneously and the switch automatically resets, or in simple terms, when the measured pressure exceeds the rated value, the free end of the elastic element is displaced, and the switch element is pushed directly or after comparison to change the switch element. On-off state to achieve the purpose of controlling the measured pressure. The elastic components used in the pressure switch include single coil spring tube, diaphragm, bellows and so on.   main category Flameproof The pressure switch can be divided into explosion-proof type and flameproof type. The service grade range is Exd II CT1 ~ T6. Imported explosion-proof pressure switches must pass UL, CSA, CE and other international certifications. It can be used in explosive areas and strong corrosive atmosphere environments. Flameproof pressure switches are available in different pressure, differential pressure, vacuum and temperature ranges. Common applications include electric power, petroleum, chemical industry, metallurgy, boiler, food machinery, environmental protection equipment and other industries. Mechanical The mechanical pressure switch is a purely mechanical deformation that causes the action of the micro switch. When the pressure increases, the different sensing pressure components (diaphragm, bellows, piston) will be deformed and will move upwards. Through the mechanical structure such as the railing spring, the uppermost micro switch will be activated to output the electrical signal.   Precautions Pressure switches are widely used in high and low pressure protection and control of household, commercial and automotive refrigeration systems, steam working conditions and power stations; accumulators, receivers, flash tanks, separators, scrubbers, refinery units. It is also applicable to the high and low pressure protection control of various equipment tools. However, in the selection of the pressure switch, the following points must be paid attention to: 1. The necessity of explosion-proof: explosion-proof forms are divided into flameproof type and intrinsically safe type. 2. Do you need to bring instructions: according to customer instructions. 3. Number of contacts: one contact (one output) or two contacts (two outputs). 4. Determination of setting value and pressure range: the recommended setting range is between 30% and 65% of the pressure range, and the settable range is between 15% and 90% of the pressure range. 5. The form of connection difference: adjustable or fixed. 6. Whether there is pulsation: If the pressure pulsates or vibrates, a throttle valve is required to suppress the damage to the instrument caused by the pulsating pressure. 7. Occasions with a diaphragm: When measuring corrosiveness, high viscosity or high temperature, it is necessary to use a diaphragm.   Range parameters:   

注：除原装进口UE防爆开关J120-530,J120-531,J120-532，更多United Electric(UE)型号欢迎电话或在线联系。

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