Dwyer Adjustable Flow Switch, Series AFS
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Series AFS Adjustable Flow Switch

Brand: Dwyer Instruments, LLC
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The Series AFS Adjustable Flow Switches are externally adjustable piston-type flow switches for oils, liquids and gases.

This Series offers an infinite number of flow settings from 0.5 to 20 GPM.
Features
  • Externally adjustable flow set point
  • Offers a number of flow settings at pressures up to 1000 psig, with low pressure drop and precise repeatability

Displaying prices & availability for Ohio, United States in CAD. Change location.

Models matching criteria: 14
AFS-131
DWYER Adjustable Flow Switch for Oil, 18 AWG, 24" Polymeric Lead Wires, Brass Piston, Brass Housing. show more
  • Media Type - Oil
  • Electrical Connection - Wire Leads
  • Piston - Brass
100+ In Stock
$2,494.00 CAD
$10.00 Shipping
AFS-142
DWYER Adjustable Flow Switch for Water, 1/2" NPT Conduit Connection, Polysulfone Piston, Brass Housing. show more
  • Media Type - Water
  • Electrical Connection - 1/2" NPT Conduit
  • Piston - Polysul Fone
50+ In Stock
$1,689.00 CAD
$10.00 Shipping
AFS-151
DWYER Adjustable Flow Switch for Liquids, 18 AWG, 24" Polymeric Lead Wires, 316 SST Piston, 316 SST Housing. show more
  • Media Type - Liquids
  • Electrical Connection - Wire Leads
  • Piston - 316 Stainless Steel
50+ In Stock
$1,090.00 CAD
$10.00 Shipping
AFS-232
DWYER Adjustable Flow Switch for Gases, 1/2" NPT Conduit Connection, Brass Piston, Brass Housing. show more
  • Media Type - Gases
  • Electrical Connection - 1/2" NPT Conduit
  • Piston - Brass
50+ In Stock
$1,715.00 CAD
$10.00 Shipping
AFS-22
  • Media Type - Gases
  • Electrical Connection - 1/2" NPT Conduit
50+ In Stock
$1,814.00 CAD
$10.00 Shipping
AFS-231
DWYER Adjustable Flow Switch for Gases, 18 AWG, 24" Polymeric Lead Wires, Brass Piston, Brass Housing. show more
  • Media Type - Gases
  • Electrical Connection - Wire Leads
  • Piston - Brass
50+ In Stock
$93.00 CAD
$10.00 Shipping
AFS-11
  • Media Type - Oil
  • Electrical Connection - Wire Leads
50+ In Stock
$864.00 CAD
$10.00 Shipping
AFS-21
  • Media Type - Gases
  • Electrical Connection - Wire Leads
50+ In Stock
$1,464.00 CAD
$10.00 Shipping
AFS-12
  • Media Type - Oil
  • Electrical Connection - 1/2" NPT Conduit
25+ In Stock
$1,138.00 CAD
$10.00 Shipping
AFS-252
DWYER Adjustable Flow Switch for Gases, 1/2" NPT Conduit Connection, 316 SST Piston, 316 SST Housing. show more
  • Media Type - Gases
  • Electrical Connection - 1/2" NPT Conduit
  • Piston - 316 Stainless Steel
25+ In Stock
$1,472.00 CAD
$10.00 Shipping
AFS-141
DWYER Adjustable Flow Switch for Water, 18 AWG, 24" Polymeric Lead Wires, Polysulfone Piston, Brass Housing. show more
  • Media Type - Water
  • Electrical Connection - Wire Leads
  • Piston - Polysul Fone
25+ In Stock
$1,356.00 CAD
$10.00 Shipping
AFS-152
DWYER Adjustable Flow Switch for Liquids, 1/2" NPT Conduit Connection, 316 SST Piston, 316 SST Housing. show more
  • Media Type - Liquids
  • Electrical Connection - 1/2" NPT Conduit
  • Piston - 316 Stainless Steel
25+ In Stock
$2,400.00 CAD
$10.00 Shipping
AFS-251
DWYER Adjustable Flow Switch for Gases, 18 AWG, 24" Polymeric Lead Wires, 316 SST Piston, 316 SST Housing. show more
  • Media Type - Gases
  • Electrical Connection - Wire Leads
  • Piston - 316 Stainless Steel
19 In Stock
$781.00 CAD
$10.00 Shipping
AFS-132
DWYER Adjustable Flow Switch for Oil, 1/2" NPT Conduit Connection, Brass Piston, Brass Housing. show more
  • Media Type - Oil
  • Electrical Connection - 1/2" NPT Conduit
  • Piston - Brass
16 In Stock
$2,533.00 CAD
$10.00 Shipping

View Details

Specifications

Brand

Accuracy

  • ± 10 % of Set Point

Approvals & Certifications

  • CE

Conduit Connection

  • 1/2” NPT Male

Electrical Connectors

  • 18 AWG, 24” (61 cm), Polymeric Lead Wires

Electrical Rating

  • 0.06 A at 240 Vdc
  • 0.08 A at 240 Vac
  • 0.13 A at 120 Vdc
  • 0.17 A at 120 Vac

Enclosure, Body Material

  • 316 Stainless Steel
  • Brass

Filter

  • 50 microns

Flow Rate

  • Gases: 1.0 to 75 scfm (28 to 2124 LPM) at psig: 5 (kPa: 34.47, bar: 0.34)
  • Liquid: 0.5 to 20 gpm (1.9 to 75.7 LPM)

Media

  • Compatible Gases
  • Compatible Liquids
  • Oil
  • Water

Mounting Position

  • Any Orientation

NPT Connection

  • 1/2” NPT Female

O-Ring Material

  • Fluoroelastomer

Piston Material

  • 316 Stainless Steel
  • Brass
  • Polysulfone

Repeatability

  • ± 1 %, Max.

Spring Material

  • 316 Stainless Steel

Supply Pressure

  • psig: 1,000 (kPa: 6,895, bar: 68.95)

Switch Type

  • SPDT

Temperature Range

  • -29° to 149° C (-20° to 300° F)

Wetted Materials

  • Epoxy

  • Protecting machine tools from coolant flow failure
  • Protecting bearings from loss of lubricant
  • Assuring proper air flowWater or compatible liquid control
  • Oil flow controlControl of gas flows

Documentation

Approvals

Catalogs

Manuals

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