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FS-150 Series Flow Switch

Brand: Gems Sensors, Inc

These slim, inline switches reduce pressure drop to a minimum.

They incorporate a unique, dual-diameter, internal bore and piston configuration to minimize flow constriction.

Liquids are able to smoothly pass around the piston and flow through the switch with little pressure loss to the down stream line.
Features
  • Flow Rate Settings: Liquids: 0.5 GPM to 5 GPM
  • Port Size: 1/2˝ NPT
  • Primary Construction Material: Polypropylene
  • Setting Type: Fixed

1 - 12 of 12 Part Numbers
129660
129660
  • Flow Rate - 0.5 GPM
  • Electrical Contacts - Normally Open at No Flow
129661
129661
  • Flow Rate - 1.0 GPM
  • Electrical Contacts - Normally Open at No Flow
129662
129662
  • Flow Rate - 2.0 GPM
  • Electrical Contacts - Normally Open at No Flow
129663
129663
  • Flow Rate - 3.0 GPM
  • Electrical Contacts - Normally Open at No Flow
129664
129664
  • Flow Rate - 4.0 GPM
  • Electrical Contacts - Normally Open at No Flow
129665
129665
  • Flow Rate - 5.0 GPM
  • Electrical Contacts - Normally Open at No Flow
129666
129666
  • Flow Rate - 0.5 GPM
  • Electrical Contacts - Normally Closed at No Flow
129667
129667
  • Flow Rate - 1.0 GPM
  • Electrical Contacts - Normally Closed at No Flow
129668
129668
  • Flow Rate - 2.0 GPM
  • Electrical Contacts - Normally Closed at No Flow
129669
129669
  • Flow Rate - 3.0 GPM
  • Electrical Contacts - Normally Closed at No Flow
129670
129670
  • Flow Rate - 4.0 GPM
  • Electrical Contacts - Normally Closed at No Flow
129671
129671
  • Flow Rate - 5.0 GPM
  • Electrical Contacts - Normally Closed at No Flow
1 - 12 of 12 Part Numbers

Specifications

Accuracy

  • Set Point Accuracy: ± 15 %
  • Set Point Differential: 20 %, Max.

Approvals & Certifications

  • CE
  • CSA: File No. LR30200
  • RoHS
  • UL: File No. E31926
  • UR

Electrical Connectors

  • 1/4” Male Quick Connect Terminals

Electrical Contacts

  • Normally Closed
  • Normally Open

Electrical Rating

  • Switch: 20 VA

Enclosure, Body Material

  • Polypropylene, Hydrolytically Stable, Glass Reinforced

Flow Rate

  • 0.5 to 5.0 gpm

Materials of Construction

  • Polypropylene

Media

  • Liquids

NPT Connection

  • 1/2” NPT Male

O-Ring Material

  • Viton

Operating Pressure

  • psig: 150 (kPa: 1,030, bar: 10.3) - Max.
  • psig: 200 (kPa: 1,380, bar: 13.8) - Max.

Operating Temperature

  • -17.8° to 100° C (0° to 212° F)

Piston Material

  • 316 Stainless Steel
  • Ryton R4

Spring Material

  • 316 Stainless Steel

Switch Type

  • SPST

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