Mercury Float Switch Sump Pumps

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  • Measuring and Sampling Surface Runoff and Subsurface Drain Outflow Volume
    System Description The major components of the water sampling and runoff volume measuring system were as follows: a sump pump with mercury float switch ($160 to $280 depending upon size); a water meter equipped with an analog/digital transmitter ($500 to $700 depending …
  • Federal Register > Wednesday, January 2, 2008 > [73 FR 226] National Emission Standards for Hazardous Air Pollutants for Iron and Steel Foundries Area Sources
    Three of the commenters said that components in household and commercial appliances, sump and bilge pumps , heating and air conditioning … … equipment (e.g., tilt switches , thermometers, flame sensors, float sensors, relays, switches, barometers … … control equipment) also contain mercury and should be included …
  • Environmental Engineering 5th Edition Complete Document
    Select the most reliable on–off pump control available, such as a magnetic weighted float control or mercury float switch . Do not enter the pump sump , wet well, or dosing tank to make repairs without first taking …
  • Belgium - RoHS substances in electrical and electronic equipment
    Listed below are examples of EE products and applications that may use mer- cury or mercury -free float switches : • Pump control: bilge, sump , utility, shower, effluent, waste, lubrication, etc. • Equipment Control: magnetic valve, cooling equipment, motors, etc. • Alarm/Outputs: programmable logic controllers, distributed control sys- tems, supervisory control and data acquisition, etc. • Residential: sump pumps, septic tanks, hot …
  • Final Consolidated MHSW Program Plan, Volume 2
    The excess water is pumped out of the sump pit and deposited at some distance from the basement. Traditionally a mercury float switch was used to sense water level and to trigger the pump when the water level increased sufficiently.
  • CHAPTER 7 DIRECT ELECTRICAL CONTROLS AND DEVICES
    Tilting the tube makes or breaks the circuit because of the motion of the mercury . Common applications include the auto trunk light switch , sump pump float switch and some thermostat switches.
  • Pumps and pumping, remote operation and monitoring
    This need to the requirement, first to monitor a sump low level to turn of the pump , and later to a higher level to restart the pump. … pump level monitoring have been developed and tried, e.g. magnet in level, float and microswitch, compressed … Nowadays the methods used in mining appear to have stabilised around mercury switch tilt float switches, with one at each level, or piezoelectric pressure transducers, which provide a continuous variable or analogue .
  • http://www.iosrjournals.org/iosr-jece/papers/Vol9-Issue2/Version-2/C09221621.pdf
    Float switches range from small to large and may be as simple as a mercury switch inside a hinged float or as complex as a series of optical or conductance sensors producing discrete outputs as the liquid reaches many different levels within … A very common application of this float is in the sump pumps and condensate pumps, where the switch detects the rising level of liquid in the sump or tank and energizes an electrical pump which then pumps the liquid out until that …
  • Nontoxic Liquid Metal Alloy Could Substitute For Mercury
    Mercury 's really reliable, but it begins to boil at 357 °. Rancourt sees several potential applications, starting with electrical float switches used to sense the level of sewerage and waste water, as well as on boat bilge pumps and home sump pumps.
  • http://www.plumbersurplus.com/pdf/993631.pdf
    These pumps are equipped with a float operated mercury switch . The sump cover usually will have a spare hole that is plugged with a rubber plug.