<![CDATA[SMCpneumatics.com: ]]> https://www.smcpneumatics.com Sun, 6 Sep 2026 00:00:00 EST en-us <![CDATA[FMW-4103-39-W/K-P80 - Spring Biased Comparators: -13 - 20 PSI with Adjusting Knob and 1/16" ID Barbs]]> https://www.smcpneumatics.com/FMW-4103-39-WK-P80--Spring-Biased-Comparators-13--20-PSI-with-Adjusting-Knob-and-116-ID-Barbs_p_2066834.html Sun, 6 Sep 2026 00:00:00 EST table.specifications-table { border: 2px solid #B6B6B6; width: 100%; margin:30px 0; } .specifications-table td { padding: 8px 4px; margin: 3px; border: 1px solid #b6b6b6; text-align: center; } .specifications-table th { padding: 8px 4px; background-...[Read More]
Our Price: $37.50 [Add to Cart]


]]> https://www.smcpneumatics.com/FMW-4103-39-WK-P80--Spring-Biased-Comparators-13--20-PSI-with-Adjusting-Knob-and-116-ID-Barbs_p_2066834.html table.specifications-table { border: 2px solid #B6B6B6; width: 100%; margin:30px 0; } .specifications-table td { padding: 8px 4px; margin: 3px; border: 1px solid #b6b6b6; text-align: center; } .specifications-table th { padding: 8px 4px; background-...[Read More]
Our Price: $37.50 [Add to Cart]


]]> table.specifications-table { border: 2px solid #B6B6B6; width: 100%; margin:30px 0; } .specifications-table td { padding: 8px 4px; margin: 3px; border: 1px solid #b6b6b6; text-align: center; } .specifications-table th { padding: 8px 4px; background-color: #ab1a14; color: #FFF; font-weight: bold; text-align: center; } table.configurations-table { border: 2px solid #B6B6B6; width: 100%; margin:30px 0; } .configurations-table td { padding: 8px 4px; margin: 3px; border: 1px solid #b6b6b6; padding-left: 20px; } .configurations-table th { padding: 8px 4px; background-color: #ab1a14; color: #FFF; font-weight: bold; padding-left: 20px; }

Medical White’s FMW-4103 Series spring biased comparators are essentially a regulator with an adjustable bias (positive or negative), and a control or pilot input. Standard units ofer a 1:1 ratio, plus or minus the initial bias. Special 3:1 and 5:1 ratio units are also available. Perfect for HVAC applications, and unique control applications requiring a positive or negative offset. Non-rising stem is available with an attractive knob, plain (allowing installation of OEM knobs) or flush for “back panel” installations.

Specifications

  • Regulator Type: Constant Bleed, Relieving
  • Wetted Materials: Polysulfone, Silicone, Stainless Steel
  • Max Supply: 35 PSI (242 kPa)
  • Temperature Range: 40° - 150° F (4° - 66° C)
  • Effect of Supply Variation: < .02 PSI (.14 kPa) per 1 PSI (6.89 kPa) supply change when dead ended
  • Repeatability: < ±.05 PSI (.35 kPa)
  • Drift: < .03 PSI (.21 kPa) after 24 hours
  • Recommended Filtration: 5 micron

Stocked Configurations Below Can Ship Same Day

Part Number Description
FMW-4103-39-W/K-P80 -13 - 20 PSI with Adjusting Knob and 1/16" ID Barbs
FMW-4103-39-W/K-P85 -13 - 20 PSI with Adjusting Knob and 1/8" ID Barbs
]]> <![CDATA[FMW-4103-39-W/K-P85 - Spring Biased Comparators: -13 - 20 PSI with Adjusting Knob and 1/8" ID Barbs]]> https://www.smcpneumatics.com/FMW-4103-39-WK-P85--Spring-Biased-Comparators-13--20-PSI-with-Adjusting-Knob-and-18-ID-Barbs_p_2066835.html Sun, 6 Sep 2026 00:00:00 EST table.specifications-table { border: 2px solid #B6B6B6; width: 100%; margin:30px 0; } .specifications-table td { padding: 8px 4px; margin: 3px; border: 1px solid #b6b6b6; text-align: center; } .specifications-table th { padding: 8px 4px; background-...[Read More]
Our Price: $37.50 [Add to Cart]


]]> https://www.smcpneumatics.com/FMW-4103-39-WK-P85--Spring-Biased-Comparators-13--20-PSI-with-Adjusting-Knob-and-18-ID-Barbs_p_2066835.html table.specifications-table { border: 2px solid #B6B6B6; width: 100%; margin:30px 0; } .specifications-table td { padding: 8px 4px; margin: 3px; border: 1px solid #b6b6b6; text-align: center; } .specifications-table th { padding: 8px 4px; background-...[Read More]
Our Price: $37.50 [Add to Cart]


]]> table.specifications-table { border: 2px solid #B6B6B6; width: 100%; margin:30px 0; } .specifications-table td { padding: 8px 4px; margin: 3px; border: 1px solid #b6b6b6; text-align: center; } .specifications-table th { padding: 8px 4px; background-color: #ab1a14; color: #FFF; font-weight: bold; text-align: center; } table.configurations-table { border: 2px solid #B6B6B6; width: 100%; margin:30px 0; } .configurations-table td { padding: 8px 4px; margin: 3px; border: 1px solid #b6b6b6; padding-left: 20px; } .configurations-table th { padding: 8px 4px; background-color: #ab1a14; color: #FFF; font-weight: bold; padding-left: 20px; }

Medical White’s FMW-4103 Series spring biased comparators are essentially a regulator with an adjustable bias (positive or negative), and a control or pilot input. Standard units ofer a 1:1 ratio, plus or minus the initial bias. Special 3:1 and 5:1 ratio units are also available. Perfect for HVAC applications, and unique control applications requiring a positive or negative offset. Non-rising stem is available with an attractive knob, plain (allowing installation of OEM knobs) or flush for “back panel” installations.

Specifications

  • Regulator Type: Constant Bleed, Relieving
  • Wetted Materials: Polysulfone, Silicone, Stainless Steel
  • Max Supply: 35 PSI (242 kPa)
  • Temperature Range: 40° - 150° F (4° - 66° C)
  • Effect of Supply Variation: < .02 PSI (.14 kPa) per 1 PSI (6.89 kPa) supply change when dead ended
  • Repeatability: < ±.05 PSI (.35 kPa)
  • Drift: < .03 PSI (.21 kPa) after 24 hours
  • Recommended Filtration: 5 micron

Stocked Configurations Below Can Ship Same Day

Part Number Description
FMW-4103-39-W/K-P80 -13 - 20 PSI with Adjusting Knob and 1/16" ID Barbs
FMW-4103-39-W/K-P85 -13 - 20 PSI with Adjusting Knob and 1/8" ID Barbs
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