UE防爆压力开关J120-192J120-194原装（UE explosion-proof pressure switch J120-192 J120-194 spot original ）

UE explosion-proof pressure switch J120-192 J120-194 The working principle of the spot original pressure switch is that 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 connector is pushed through the connecting guide rod to connect. On or off, when the pressure drops or rises to the rated recovery value, the disc resets instantaneously, and the switch automatically resets, or simply when the measured pressure exceeds the rated value, the free end of the elastic element is displaced, directly or After comparison, push the switch element to change the on-off state of the switch element, so as 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. UE pressure switch selection considerations Pressure switches are widely used in high and low pressure protection control of household, commercial and automotive refrigeration systems, steam working conditions and power stations; accumulators, receivers, flash tanks, separators, scrubbers , Refining unit. It is also applicable to the high and low pressure protection control of various equipment tools. However, in the selection of pressure switches, 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. J120 series explosion-proof pressure switch main models: J120-190/191/192/193/194J120-171/172/173/174J120-701/702/703/704/705 J120-S126B/S134B/S137B/S144B/S152B/S156B/S164B J120-126/134/137/144/152/156/164 J120-356/358/361/376 J120-520/521/522/523/524/525 J120-530/531/532/533/534/535 J120-612/616 J120-183/184/185/186/187/188/189 J120-483/ 484/485/486/487/488/489 J120-S126B/S134B/S137B/S144B/S152B/S156B/S164B

注：除UE防爆压力开关J120-192J120-194原装，更多United Electric(UE)型号欢迎电话或在线联系。

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