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Thomas Products Ltd.
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  5. Thomas - Model 1700 Series - Liquid or ...

Thomas - Model 1700 Series -Liquid or Gas Flow Switch

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Standard flow calibration is in water @ 70°F with lead wires up. Calibrated on increasing flow. Temperature effect on flow settings: water calibration, slight change; oil varies with viscosity; gas, slight change.

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  • Set point accuracy will change slightly in other than calibrated position.
  • Model 1600 is UL recognized with a SPST reed switch rated pilot duty 20 VA 120- 240 VAC, 174° F.
  • Relays for higher loads, junction boxes, terminal strips, etc. are available. See accessories section for details
  • Also available: leads in different lengths, cable, terminated ends, etc. Consult factory.
  • Optional 3 Pin M/S connector – MS3102E10S-3P. Consult factory.
  • High-temperature units available to 400°F. Consult factory.
  • Standard flow settings are calibrated in water. Other set points in water or oil are available. Consult factory.
  • Optional air set points for Model 1600 are available. Consult factory with CFM and line pressure.
  • Optional air set points for Model 1700 are available. Consult factory with CFH and line pressure.
  • Other wetted materials: Hysol epoxy.
  • Model 1700 orifice dia. is 5/16″; inlet fitting supplied by customer must be 3/8″ I.D. minimum.
  • All SST piston eliminating epoxy is available. Consult factory.
  • Polysulfone for water in brass housing.
  • Brass for oil in brass housing.
  • SST for SST housing.
  • Calibration: Flow stands are calibrated to the National Bureau of Standards and Thomas Products Ltd. recalibration schedule.

  • Weight: 2.5 lbs
  • Dimensions: 8 × 5 × 3 in
  • Fluid Type: Liquid, Gas
  • Housing Material: Brass, SST
  • Flow Set Point: 50 CC/MIN Increasing Flow, 100 CC/MIN Increasing Flow, 150 CC/MIN Increasing Flow, 200 CC/MIN Increasing Flow, 250 CC/MIN Increasing Flow, 300 CC/MIN Increasing Flow, Custom Flow Set Point +$75
  • Piston Material Brass, 316SST, Polysulfone, Special Piston (Gas Models Only)