UE压力开关H117-171H117-172（UE pressure switch H117-171 H117-172 ）

US UE pressure switch H117-171 H117-172  working principle 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 to the rated recovery value, The disc resets instantaneously, and the switch automatically resets, or in short, 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 on-off state of the switch element to achieve control The purpose of 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.   Technical specifications   Storage temperature -54～71℃ Ambient temperature -40～71℃; 520-535 type. 700-713 type: -18～71℃; every 28℃ change in ambient temperature. The typical drift of the set point is not more than 1% Set point repeatability temperature switch: adjustable range ± 1% pressure switch type 171-174, 218, 520-535, 560-564, 700-713: adjustable range ± 1%; 183-194 type . Type 358. Type 361. Type 376. Type 483-494. Type 565-567: Adjustable range ±1 1/2%; All types of pressure switches are set internally locked shock resistance by 15G. 10 millisecond cycle test. Reproducible set point Vibration resistance Tested at 2.5G. 5 ~ 500Hz vibration. Reproducible set point  housing Die-cast aluminum body with epoxy coating screw fastening . Housing rating complies with NEMA 4X; IP65 requires  switch output One single pole double throw (SPDT) Encapsulated Sealed Snap Action Switch; can be wired as "Normally Open" or "Normally Closed"; Double Pole Double Throw (DPDT) (Option 1190/1195) Electrical Rating 11 Amps 125/250VAC; 5 Amps 28VDC 1 Amp 48VDC; 1/2 Amp 125VDC; Gold Switch Contact  Weight 1.5 to 6.5 lbs (varies by model) Electrical Connection 1/2" NPTF; Two 7/8" diameter punched pressure connections 1/4 "NPTF; Styles 171-194. Styles 483-494. Styles 520-535: 1/2"NPTF; Styles 560-564: 2" Sanitary Connections; Styles 565-567: 1 1/2" Sanitary Connections Temperature Assemblies Bulb and capillary: 6 feet .304 stainless steel In-line: Nickel-plated brass (standard lengths only); optional 316L stainless steel  packing Types 2-8: Non-toxic oil  Temperature dead zone Laboratory conditions. Switches are typically 4% of set point span  reference scale pressure : "Low-Medium-High" Incremental Temperature: Calibrated Scale  Certification The model can adjust the setting range  . When rising, it is the set point range. When the high pressure end is  falling   , it is the set point range   . O-ring 1/4" NPTF 303 stainless steel pressure port, option M540 for Viton (Viton) diaphragm and O-ring  

注：除UE压力开关H117-171H117-172，更多United Electric(UE)型号欢迎电话或在线联系。

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