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  • Piston/diaphragm pressure switches
    , with a proof pressure of 350 psi. Switches employed as more critical compressor controls may exhibit tighter repeatability. Modern designs incorporate a flexible diaphragm that isolates the plunger and switch mechanism from external contaminants. The most widely used diaphragm materials include EPDM
  • Ammonia Pressure Measurement using Thermal Flash Protection (.pdf)
    or below. This accelerated change, along with the type of sensor diaphragm material affects the pressure transducer performance and ultimately the control system. Other Pressure Sensing Technologies: O-ring sealed pressure sensors cannot withstand rapid thermal changes and over time the internal
  • Medical Device Link .
    Unlike piston pumps, miniature diaphragm pumps do not require lubricants in the pump 's stroking mechanism. On a similar note, rotary-vane pumps are prone to the vanes wearing and spewing debris in the flow path. By contrast, miniature diaphragm vacuum pumps and compressors provide an oil-free
  • Straight Talk on Wobble-Piston Pumps
    Wobble pumps combine the best features of piston and diaphragm air pumps. Wobble pumps are available in a wide range of sizes. The Model 8003 from Rietschle Thomas weighs less than 7 oz, is rated at 12-psi maximum pressure, and has 0.11-cfm open flow. It is used in industrial gas-detection
  • Medical Device Link .
    employed creative thinking and strategic use of design tools to produce new valves that offer the tiny size and high throughput that OEMs seek. Solenoid valves direct the flow of air and gases in a fluidic module that typically incorporates miniature diaphragm pumps, compressors, or vacuum pumps
  • Which Pump Is Right for Me? Pushing Through a Host of Factors to Select the Right Pump
    for priming, use either a compressor/venturi priming device, diaphragm priming device, or vacuum unit. The vacuum unit is the fastest prime due to its air handling capacity. Q: Why is there such a price difference between pumps? After all, aren't all pumps basically the same?. A: There is a vast

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