
Flow Switches
Flow switches are designed to control the movement of gas, steam or liquid in a process, by triggering a predetermined action such as on or off. Flow switch sensors with an electrical contact output at a specific flow rate have different types of switches, such as paddle, thermal, piezo and shuttle/piston.
All Flow Switches Products

V10 Flotect Mini-Size Flow Switch
Simple field switch adjustment, magnetically actuated switch design, cost effective, and leak proof body

V4 Flotect Vane-Operated Flow Switch
Dependable protection against flow variation or stopping in pipelines for fluids, gases, and flowing solids

V6 Flotect Mini-Size Flow Switches
Weather proof & explosion proof, easy intallation, features a free swinging vane

FST-221-SPST thermal Dispersion Flow Switches for Liquids
Thermal Dispersion Flow Switches for Liquids
800-567-8686

FSW304 Economical Brass Flow Switches
Flow Switches
800-567-8686

FSW802B Compact Fan & Filter Fan Air Flow Switch
Compact Fan and Filter Fan Air Flow Monitor
800-567-8686

FST-321-SPST Thermal Dispersion Flow Switches for use w/Gases
Thermal Dispersion Flow Switches for Use With Gases
800-567-8686

FLCN-101 Flow/No Flow Single Sensor Controller w/Strobe Alert
Flow Alert Single Sensor Controller
800-567-8686

FST1001A Economical Air flow Switch w/ High/Lo Alarms
Economical Air Flow Switch
800-567-8686

FST-221-R Flow Switch With Compact Relay Controller
Flow Switch With Compact Relay Controller
800-567-8686

FSW-160 Heavy Duty Paddle Flow Switch
Paddle Flow Switch
800-567-8686

FSW-91-R Liquid Flow Transmitter & Switch w/Visual Indication
Liquid Flow Transmitter and Switch
800-567-8686

FSW-41A Industrial Flow Switches - From 2 to 15 Feet/Second
Industrial Flow Switches - From 2 to 15 Feet/second
800-567-8686

FSW-30A Non-magnetic Industrial Flow Switches
Industrial Flow Switches From 0.12 to 70 GPM Non-magnetic - ideal for Rusty Water
800-567-8686

P3 Polypropylene Flow Switch
Fixed Set Points from 0.25 to 2.0 GPM, 3/8" NPT or "Quick Disconnect" Adapters

LVCN-131-CE Flow Switch Remote Controller
Flow Switch Remote Controller
800-567-8686

TDFS2 Thermal Dispersion Flow Switch
Non-Mechanical, Low Pressure Drop, Large Pipe Sizes

TDS Thermal Dispersion Flow Switch
Adjustable Switch Point, LED Indication

AFS Adjustable flow Switch
For Oils, Water and Gases, Infinite Adjustments

GVS Globe Valve Switch
Adjustable Set Point, Rugged Bronze Construction, Straight Through Flow

BFM - Bulk Flow Monitor
Provides effective monitoring for most flow/no flow conditions in pipes and chutes

TDFT Thermal Dispersion Flow Transmitter
Continuous frequency output

AVFS - Air Flow Switch
Specifically designed to monitor air flow in ducts & provides a 3A contact output to indicate a change or loss of flow

AAFS - Adjustable Air Flow Paddle Switch
Capable of detecting a wide range of air velocities with minimal user calibration

G9 Globe Flow Switch
Adjustable Set Point, Water or Oil Service, 90° Flow Path

P8 High Pressure Brass Flow Switch
Up to 1500 psi, Fixed Setpoint, Up to 2.0 GPM, Rugged Brass Body

L4 Flotect Float Switch
Perfect for starting or stopping pumps, opening or closing valves, or actuating level alarm signals

P2 Flow Switch
Ideal for air and post-filtered water applicatoins, with fixed set point; FDA compliant

P1-013 Brass Flow Switch
Flow rates from 0.10 GPM - 1.5 GPM, piston-type operation, fixed setpoints

V7 Flotect Vane Operated Flow Switch
NEMA 4X design, features a free swinging vane and magnetic linkage; UL approved

FS-2 Vane Flow Switch
Alluminum weatherproof housing, field adjustable set point and paddle, adjustable to fit 1 in - 8 in size pipe

V8 Flotect Vane Operated Flow Switch
Magnetically actuated switching design, leak proof body, operating pressures up to 150 PSIG with temperatures to 212°F

530 Air Flow Switch
Adjustable from 400 - 1600 FPM and stainless steel vane provide excellent sensitivity and reliability at a very reasonable price