Single Throw (ST) Flow Switches

The M-701 offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. M-701 is designed for ease of maintanance, as the bonnet and shuttle can be removed, leaving the housing and pipe work connections intact. All wetted parts are polypropylene or stainless steel,... [See More]

• Throws: Single Throw
• Media Temperature: 60 to 212

• Operating Pressure: 40 to 100
• Pipe Diameter: 0.75

Flow Rate Settings: Liquids 0.5 GPM to 5 GPM. Port Size: 1/2" NPT. Primary Construction Material: Polypropylene. Setting Type: Fixed. These slim, inline switches reduce pressure drop to a minimum. They incorporate a unique, dual-diameter, internal bore and piston configuration to minimize flow... [See More]

• Throws: Single Throw
• Operating Pressure: 150 to 200

• Process Media Type: Liquid
• Media Temperature: 0 to 212

The F002A is a precision machined, piston type flow switch that provides unsurpassed durability and reliability. Its all brass or 316 stainless steel body is rated to 1000 psig with its internal piston the only moving part. Supplied with ¼" NPT inlet and outlet ports and a ½" NPTF... [See More]

• Throws: Single Throw; Double Throw
• Operating Pressure: 1000

• Process Media Type: Liquid
• Media Temperature: -20 to 300

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]

• Throws: Single Throw
• Operating Pressure: 0.0 to 1000

• Process Media Type: Liquid
• Media Temperature: -20 to 200

Switching Voltage: 100Vac, 220Vac. Switching Current: 1.0 Amax. Switch Connections: SPST-NO (Normally Open)/SPST-NC (Normally Closed). Set Point Tolerance: 10 ％(max.). Setting Accuracy: ±10 ％. Range of Flow Rate: 0.55~15L/min. Operation Temperature: -10~80 °C. Operation... [See More]

• Throws: Single Throw
• Operating Pressure: 116

• Process Media Type: Liquid
• Liquid Volumetric Flow Rate: 0.15 to 3.96

The FST1000 Series measures air velocity and provides two SPST alarm contact closures corresponding to high and low alarm set points. The alarm set points are adjustable from 0 to 100% of the air flow range. The unit comes with a green power LED, and two red LEDs for high and low alarm indications. [See More]

• Throws: Single Throw
• Velocity Flow Rate: 0.0 to 167

• Process Media Type: Gas
• Accuracy: 2

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]

• Throws: Single Throw; Double Throw (optional feature)
• Operating Pressure: ? to 4350

• Process Media Type: Liquid; Gas
• Media Temperature: ? to 212

Flow Rate Settings: 0.1 GPM to 1.5 GPM. Port Size: 9/16" - 18 UNF. Primary Construction Material: Ryton ®. Setting Type: Fixed. More robust porting hubs offer better structural integrity. Molded cable grommet offers improved moisture protection. The FS-4 Series makes flow protection economical... [See More]

• Throws: Single Throw; Double Throw
• Operating Pressure: 250

• Process Media Type: Liquid
• Media Temperature: 0 to 225

Switching Voltage: 100Vac,220Vac. Switching Current: 1.0 Amax. Switch Power Rating: 70 V A. Switch Connections: SPST-NO (Normally Open)/SPST-NC (Normally Closed). Set Point Tolerance: 10 ％(max.). Setting Accuracy: ±10 ％. Range of Flow Rate: 0.15~2L/min. Operation Temperature:... [See More]

• Throws: Single Throw
• Operating Pressure: 435

• Process Media Type: Liquid
• Liquid Volumetric Flow Rate: 0.04 to 0.53

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]

• Throws: Single Throw
• Operating Pressure: 150

• Process Media Type: Liquid
• Media Temperature: 140

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]

• Throws: Single Throw; Double Throw (optional feature)
• Operating Pressure: 145 to 232

• Process Media Type: Liquid; Gas
• Media Temperature: 160 to 320

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]

• Throws: Single Throw
• Operating Pressure: 50 to 120

• Process Media Type: Liquid
• Media Temperature: 120

Switching Voltage: 100Vac, 220Vac. Switching Current: 1.0 Amax. Switch Power Rating: 70 V A. Switch Connections: SPST-NO (Normally Open)/SPST-NC (Normally Closed). Set Point Tolerance: 10 ％ (max.). Setting Accuracy: ±10 ％. Range of Flow Rate: 0.95~15L/min. Operation Temperature:... [See More]

• Throws: Single Throw
• Operating Pressure: 435

• Process Media Type: Liquid
• Liquid Volumetric Flow Rate: 0.25 to 3.96

Series 2600 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. Switch function involves magnet equipped PVC shuttle that is displaced at the... [See More]

• Throws: Single Throw
• Operating Pressure: 150

• Process Media Type: Liquid
• Liquid Volumetric Flow Rate: 0.50

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]

• Throws: Single Throw
• Operating Pressure: 40 to 100

• Process Media Type: Liquid
• Media Temperature: 0 to 212

Switching Voltage: 100Vac, 220Vac. Switching Current: 1.0 Amax. Switch Power Rating: 70 V A. Switch Connections: SPST-NO (Normally Open)/SPST-NC (Normally Closed). Set Point Tolerance: 10 ％(max.). Setting Accuracy: ±10 ％. Range of Flow Rate: 0.95~20L/min. Operation Temperature:... [See More]

• Throws: Single Throw
• Operating Pressure: 435

• Process Media Type: Liquid
• Liquid Volumetric Flow Rate: 0.25 to 5.28

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]

• Throws: Single Throw; Double Throw (optional feature)
• Operating Pressure: ? to 145

• Process Media Type: Liquid; Gas
• Media Temperature: ? to 248

Flow Rate Settings: Liquids - 0.1 GPM to 1.5 GPM; Air/Gases - see chart. Port Size: 1/4" NPT. Primary Construction Material: Brass or Stainless Steel. Setting Type: Fixed. This series of precision-calibrated switches provide reliable and consistent performance; repeatability is within 1%. FS-925... [See More]

• Throws: Single Throw
• Operating Pressure: 1000

• Process Media Type: Liquid
• Media Temperature: -20 to 300

Switching Voltage: 100Vac, 220Vac. Switching Current: 1.0 Amax. Switch Power Rating: 70 VA. Switch Connections: SPST-NO (Normally Open)/SPST-NC (Normally Closed). Set Point Tolerance: 10 ％(max.). Setting Accuracy: ±10 ％. Range of Flow Rate: 0.95~10L/min. Operation Temperature:... [See More]

• Throws: Single Throw
• Operating Pressure: 435

• Process Media Type: Liquid
• Liquid Volumetric Flow Rate: 0.25 to 2.64

The flow meter and switch model DS05 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]

• Throws: Single Throw; Double Throw (optional feature)
• Operating Pressure: ? to 145

• Process Media Type: Liquid
• Media Temperature: ? to 248

Flow Rate Settings: Liquids - 50-300 cc/min.; Air/Gases - See Chart at Bottom of Page. Port Size: 1/4" NPT. Primary Construction Material: Brass or Stainless Steel. Setting Type: Fixed. These switches provide accurate detection of excessive or insufficient flow rates in such applications as:... [See More]

• Throws: Single Throw
• Operating Pressure: 1000

• Process Media Type: Liquid
• Media Temperature: -20 to 300

Switching Voltage: 100Vac, 220Vac. Switching Current: 1.0 Amax. Switch Power Rating: 70 V A. Switch Connections: SPST-NO (Normally Open)/SPST-NC (Normally Closed). Set Point Tolerance: 10 ％(max.). Setting Accuracy: ±10 ％. Range of Flow Rate: 0.15~2L/min. Operation Temperature:... [See More]

• Throws: Single Throw
• Operating Pressure: 435

• Process Media Type: Liquid
• Liquid Volumetric Flow Rate: 0.04 to 0.53

The flow meter and switch model DS04 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]

• Throws: Single Throw; Double Throw (optional feature)
• Operating Pressure: ? to 4350

• Process Media Type: Liquid; Gas
• Media Temperature: ? to 248

Flow Rate Settings: 0.10 GPM to 1.50 GPM. Port Size: 1/4" NPT. Primary Construction Material: Brass, Stainless Steel. Setting Type: Fixed. Measuring only 1" x 2-3/4" (25 mm-70 mm), these compact switches are ideal for use where space is at a premium. Designed for use with water and oil, these... [See More]

• Throws: Single Throw
• Operating Pressure: 1000

• Process Media Type: Liquid
• Media Temperature: -20 to 200

The flow meter and switch model DS08 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. An externally mounted pointer indicator is magnetically coupled to the float... [See More]

• Throws: Single Throw; Double Throw (optional feature)
• Operating Pressure: ? to 3625

• Process Media Type: Liquid; Gas
• Media Temperature: ? to 248

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]

• Throws: Single Throw
• Operating Pressure: 500 to 1500

• Process Media Type: Liquid
• Media Temperature: -20 to 275