Serving the Semiconductor Industry since 1999


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regarding the company's products and technology
Universal Microsystems
High precision, restrictive flow orifices for
gas flow control
47000 Warm Springs Blvd. Ste1#146
Fremont, California 94539
Phone: 408-828-1460

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  • We stock orifices with diameters from 0.001" to 0.075"
  • We use SS orifices for diameters >0.030" designated by Fxx where xx is the diameter in 0.001" units
  • We use sapphire orifices for diameters between 0.003" and 0.030" designated either Nxx or Rxx
  • Nxx orifices have a beveled inlet shape while Rxx have a flat inlet
  • We use Si orifices with diameters between 0.001" and 0.010" including fractional values of 0.001"   
  • Link to gas flow vs diameter

    Available Bodies and Prices
    SS Disc 3/16" or 1/8" OD
  • Use any orifice with 3/16" disc
  • SS or sapphire orifices with 1/8" disc
    $25

  • VCR Unions

    1/4" M/M w Embossed part# & serial ID
    149$ Info

    1/4" M/M w Embossed orifice ID
    119$ Info

    1/4" M/F or F/M w Embossed part#
    159$ Info

    1/8" M/M w Embossed Orifice ID
    129$ info

    1/4" F/F w Embossed Orifice ID
    169$ Info




    1/4" tube 1.70" or 1.20" length
    w Embossed Orifice ID
  • Use any orifice with compression fittings
  • SS and sapphire orifices for welding
    $54
    TubeInformation



  • 1 1/8" Surface mount Sandwich
    1/4" thickness.
    Embossed Orifice ID & serial #
    129$
    Information

    Cut-off filters. Point-of-use 99.9999999%, filtration with built in restrictor. Limit overflow to specified value.
    Information-Cut-off Filter For additional filter information contact TEM Filter Co.
    www.temfilter,com

    Also, calibrated orifices
    for 1% accuracy flow source
    75$
    Gaskets
               

    Notes    
       
       
       
    > Pricing requires CC, pre-paid, or COD
    > M/F and F/F are welded w He leak check 10-9 atm-cm/sec
    > 7 Ra surface finish
    > Restrictors ship 5.0 % flow specification
    > Calibration accuracy 1% @>100 sccm
    > Calibration accuracy from Primary Standards
    For quotes or additional information E-mail Us
    Universal Microsystems