Normally Open (NO) Volumetric Liquid Flow Switches

23 Results
Flow sensor with fast response time -- SBU324
from ifm efector inc.

Reliable volumetric flow monitoring of the internal cooling of the drill on machine tools. With integrated backflow protector. Intuitive continuous adjustment of the switch points. Robust housing with very high pressure resistance. Very short response time. View other products in this family of... [See More]

  • Normal State: Normally Open
  • Meter Type: Volumetric Flow Meter
  • End Fittings: In-line Threaded
  • Process Media Type: Liquid
Analyzer Flow Switch/Monitors -- FS10A
from Fluid Components Intl. (FCI)

The FS10A is a universal flow monitor and switch specifically designed for gas and liquid process analyzer sampling systems. The FS10A is a fast responding, highly repeatable sensor which installs easily into a standard tube tee fitting or new SP76 (NeSSI) modular manifold. The FS10A utilizes proven... [See More]

  • Normal State: Normally Open
  • Pipe Diameter: 0.25 to 0.50
  • Meter Technology: Thermal
  • Mounting: Insertion
Inline Flow and Temperature Monitoring Switch -- FlexSwitch® FLT93C
from Fluid Components Intl. (FCI)

The FLT93C insertion and inline type FlexSwitches for sanitary flow, level and temperature monitoring represents the first true technological breakthrough in thermal technology in over a decade. This product is specifically designed for sanitary 3A process applications. FCI is the only thermal... [See More]

  • Normal State: Normally Open; Normally Closed
  • Mounting: Insertion
  • Meter Technology: Thermal
  • End Fittings: In-line Flanged
Inline Flow and Temperature Monitoring Switch -- FlexSwitch® FLT93L
from Fluid Components Intl. (FCI)

The FLT93L inline type FlexSwitch for flow and temperature monitoring represents the first true technological breakthrough in thermal technology in over a decade. FCI is the only thermal manufacturer providing temperature compensation to ensure set point accuracy for process temperatures that vary... [See More]

  • Normal State: Normally Open; Normally Closed
  • Pipe Diameter: 0.75 to 1.00
  • Meter Technology: Thermal
  • Mounting: In-line
Insertion Flow and Temperature Monitoring Switch -- FlexSwitch® FLT93F
from Fluid Components Intl. (FCI)

The FLT93F insertion type FlexSwitch for flow and temperature monitoring represents the first true technological breakthrough in thermal technology in over a decade. This product was designed for heavy industrial environments including high temperature and high pressure. FCI is the only thermal... [See More]

  • Normal State: Normally Open; Normally Closed
  • Pipe Diameter: 0.25 to 1.00
  • Meter Technology: Thermal
  • Mounting: Insertion
Insertion Flow and Temperature Monitoring Switch -- FlexSwitch® FLT93S
from Fluid Components Intl. (FCI)

The FLT93S insertion type FlexSwitch for flow and temperature monitoring represents the first true technological breakthrough in thermal technology in over a decade. This product was designed for heavy industrial environments including high temperature and high pressure. FCI is the only thermal... [See More]

  • Normal State: Normally Open; Normally Closed
  • Pipe Diameter: 0.75 to 1.00
  • Meter Technology: Thermal
  • Mounting: Insertion
Fixed Set-Point Flow Switch -- 30101
from Orange Research, Inc.

Fixed Set-Point Flow Switches. Our 30000 Series fixed set-point flow switches have factory-preset settings. The many features and the adjustability found on our other models have been designed out. Their compact size and basic profile results in low-cost switches that can be mounted where space is... [See More]

  • Normal State: Normally Open
  • Mounting: In-line
  • Pipe Diameter: 0.25
  • End Fittings: In-line Threaded
Flow Switch -- FS-400P Series
from Gems Sensors & Controls

Flow Rate Settings: 0.5 GPM or 2.0 GPM. Port Size: 3/4" or 1" IPS. Primary Construction Material: Clear PVC. Setting Type: Fixed. Designed for low cost flow/no-flow monitoring. This series is available with a clear, transparent PVC housing which is ideal for use where visual flow confirmation is... [See More]

  • Normal State: Normally Open
  • Mounting: In-line
  • Pipe Diameter: 0.50 to 1.00
  • End Fittings: In-line Threaded
Compact Relay Controller Flow Switch -- FST-200-R / FST-300-R
from OMEGA Engineering, Inc.

This switch package offers a complete solution for flow or no-flow switching in pipes or ducting ranging up to 16". The compact relay controller provides reliable actuation of valves, pumps or blowers rated up to 1 /2 HP. Common applications include low flow pump or process protection. To complete... [See More]

  • Normal State: Normally Open; Normally Closed
  • Mounting: In-line
  • Pipe Diameter: 0.75 to 12.00
  • End Fittings: In-line Threaded
Oil Flow Meters
from Bijur Delimon International

Application. Individually calibrated and adjustable, Oil Flow Meters regulate and monitor oil flow. Features. Regulate and monitor oil flow to bearings and gears. Individually calibrated and adjustable with out graphs and viscosity curves. Various flow rates available in single meters or in banks of... [See More]

  • Normal State: Normally Open
  • Mounting: In-line
  • Meter Technology: Piston
  • End Fittings: In-line Threaded
Flow Indicator, Switch, Transmitter -- DS15
from Clark Solutions

The model DS15 flow meters work according to the proven variable area principle. The float is moved upward in a tapered tube by the flowing medium and its upper edge indicates the flow rate by means of a scale affixed on to the measuring tube. By using a float with an integrated magnet, optional... [See More]

  • Normal State: Normally Open; Normally Closed
  • Mounting: In-line
  • Meter Technology: Rotameter; Variable Area
  • End Fittings: In-line Threaded
Positive Displacement Flow Meter -- ZHM-01
from AW Company

304 Stainless steel or 316Ti bodies [See More]

  • Normal State: Normally Open
  • Pipe Diameter: 0.25
  • Meter Technology: Oval Gear
  • Mounting: In-line
Flow Switch -- FS-500 Series
from Gems Sensors & Controls

Flow Rate Settings: 0.25 GPM to 5.0 GPM. Port Size: 3/4" NPT. Primary Construction Material: Polypropylene. Setting Type: Fixed. The FS-500 offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. All wetted parts are polypropylene or stainless steel, making... [See More]

  • Normal State: Normally Open
  • Mounting: In-line
  • Pipe Diameter: 0.75
  • End Fittings: In-line Threaded
Thermal Dispersion Liquid Flow Switch -- FST-200
from OMEGA Engineering, Inc.

OMEGA ® FST-200 Series flow switches use thermal dispersion technology to create a very accurate and economical method of sensing flow. Monitor fluids from 0.4 to 1.2 specific gravity, 1 to 300 cp, and pulsating flow from 10 to 100 pulses per minute. The sensors incorporate two temperature... [See More]

  • Normal State: Normally Open; Normally Closed
  • Pipe Diameter: 0.12 to 12.00
  • Meter Technology: Thermal
  • Mounting: Insertion
Flow Meter/Switch for Water -- DS06
from Clark Solutions

The flow meter and switch model DS06 works according to a modified variable area principle. The float is guided in a cylindrical measuring tube by means of a slotted nozzle. The flowing medium moves the float in the flow direction. An externally mounted pointer indicator is magnetically coupled to... [See More]

  • Normal State: Normally Open
  • Pipe Diameter: 0.25 to 1.25
  • Meter Technology: Rotameter; Variable Area
  • Mounting: In-line
High Inline Pressure Compact Flow Switch -- FS-380 Series
from Gems Sensors & Controls

Flow Rate Settings: 0.25 GPM to 2.00 GPM. Port Size: Multiple. Primary Construction Material: Brass or Stainless Steel. Setting Type: Fixed. These rugged inline flow switches use 100 micron filtration and are less susceptible to clogging than other high-pressure inline flow switches. The one-piece... [See More]

  • Normal State: Normally Open
  • Pipe Diameter: 0.38 to 0.50
  • Meter Technology: Piston
  • Mounting: In-line
Miniature Variable Area Flow Switch -- DS02
from Clark Solutions

The flow meter and switch model DS02 works according to a modified variable area principle. The float is guided in a cylindrical measuring tube by means of a spring. The flowing medium moves the float in the flow direction. A Reed contact is mounted outside the meter in a sealed housing. When the... [See More]

  • Normal State: Normally Open
  • Pipe Diameter: 0.25 to 1.00
  • Meter Technology: Rotameter; Variable Area
  • Mounting: In-line
Inline Plastic Flow Switch -- FS-380P Series
from Gems Sensors & Controls

Low Pressure Drop Design. Flow Rate Settings: 0.25 GPM to 2.00 GPM. Port Size: 3/8" NPT Male and 1/4" Quick Disconnect (QDC) Male. Primary Construction Material: Polypropylene. Setting Type: Fixed. This rugged inline flow switch offers the same superior performance and resistance to clogging as its... [See More]

  • Normal State: Normally Open
  • Pipe Diameter: 0.25 to 2.75
  • Meter Technology: Piston
  • Mounting: In-line
Miniature Variable Area Flowmeter and Switch -- DS01
from Clark Solutions

The flow meter and switch model DS01 works according to a modified variable area principle. The float is guided in a cylindrical measuring glass by means of a spring. The flowing medium moves the float in the flow direction. The upper edge of the float shows the momentary flow via a burnt-in scale... [See More]

  • Normal State: Normally Open
  • Pipe Diameter: 0.25 to 1.00
  • Meter Technology: Rotameter; Variable Area
  • Mounting: In-line
Metal Paddle Flow Switch -- FS-550 Series
from Gems Sensors & Controls

Engineered for Positive Liquid Flow Detection at Pressures to 2000 psig (137.9 bar). Unique, Patented Cam Design Assures Low Pressure Drop and Does not Require Bellows, Seals, or Mechanical Linkages. Minimum In-Line Restriction; Paddle Pivots to Move Out of Liquid Path with Increasing Flow. Pipe... [See More]

  • Normal State: Normally Open
  • Mounting: Insertion
  • Pipe Diameter: 0.50 to 1.00
  • End Fittings: In-line Threaded
Series 2100 Polysulfone Flow Switch -- 2100-12686
from Clark Solutions

Series 2100 flow switches are manufactured to exacting standards and provide accurate flow detection for most applications. Product inspection involves calibrated tools and gages traceable to National Bureau of Standards. The switches function as a magnet embedded in a spring loaded polysulfone... [See More]

  • Normal State: Normally Open
  • Mounting: In-line
  • Pipe Diameter: 0.56
  • End Fittings: In-line Threaded
No-Moving-Parts Flow Switch -- FS-600 Series
from Gems Sensors & Controls

Flow Rate Settings: 0.1 GPM to 11 GPM (0.5 LPM to 41 LPM). Port Size: 1/2" to 1-1/2" (NPT or G thread). Setting Type: Fixed. The FS-600 series flow switch uses proven thermal dispersion technology to provide a robust no moving parts flow switch even without filtration. The solid state sensor is... [See More]

  • Normal State: Normally Open
  • Mounting: In-line
  • Meter Technology: Thermal
  • End Fittings: In-line Threaded
Variable Area Flowmeter and Switch -- DS03
from Clark Solutions

The flow meter and switch model DS03 works according to a modified variable area principle. The float is guided in a cylindrical measuring glass. The upper edge of the float shows the momentary flow via a burnt-in scale on the measuring glass. A Reed contact is mounted outside the meter in a sealed... [See More]

  • Normal State: Normally Open
  • Pipe Diameter: 0.25 to 1.25
  • Meter Technology: Rotameter; Variable Area
  • Mounting: In-line