美国UE真空压力开关H117-520（US UE vacuum pressure switch H117-520 ）

American UE vacuum pressure switch H117-520  technical parameters: 表压：30"Hg Vac to 3500 psi(-1 to 241,3 bar) Differential pressure: 0.8" wcd to 500 psid (2 mbar to 34,5 bar) Temperature: -84.4 degrees to 337.8 degrees UE 117 series vacuum switch is widely used in water supply and sewage treatment, pump and paper making, food and beverage, steel plant, aluminum plant, petrochemical industry and medicine, etc. main feature: Class I, Division 2, Groups A, B, C & D; Class II,  Division 2, Groups F & G; Class III  Hermetically sealed quick dry contact switch with terminal box  Vacuum switch in many different types Sensing component materials, including welded stainless steel  diaphragm and bellows.  ●Epoxy resin-coated aluminum shell  ●The protection level of the vacuum switch is IP65  Fault phenomenon: Reason analysis  of the poor  sensitivity of the pressure  switch The contact stroke of the dynamic switch is too long  (3) Improper adjustment of the adjustment screw, ejector rod, etc.  (4) Improper installation, such as uneven and inclined  installation Solution:  (1) Reassemble to make the action sensitive  (2) Reasonably adjust the contact of the micro switch travel  pack 

注：除美国UE真空压力开关H117-520，更多United Electric(UE)型号欢迎电话或在线联系。

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