Electro-Mechanical Switch Volumetric Gas Flow Switches
Last Updated: April 1, 2025
Description
Electro-mechanical switch volumetric gas flow switches are devices designed to monitor and control the flow of gas within a system. They detect the presence or absence of gas flow and can trigger an electrical signal to activate or deactivate other components in the system, such as pumps or valves, ensuring the proper flow of gas is maintained.
Working Principle
These switches operate by sensing the flow of gas through a valve contained within the switch. When gas flows through the valve, it sends a signal to a switching unit, which then adjusts the electrical signal accordingly. This adjustment can turn a pump or valve on or off, maintaining the desired flow rate. The usefulness of these switches lies in their ability to monitor flow characteristics such as volume, speed, and pressure, and to make real-time adjustments to ensure system efficiency and safety.
Applications
Electro-mechanical switch volumetric gas flow switches are commonly used in HVAC systems to monitor and control air and steam flow. They are also employed in various industrial applications where precise gas flow control is critical, such as in chemical processing plants and gas distribution systems.
Advantages over other Volumetric Gas Flow Switches
One advantage of electro-mechanical switches is their ability to provide a direct mechanical response to changes in gas flow, which can be more reliable in certain environments compared to solid-state switches. This can be particularly beneficial in applications where electrical interference might affect the performance of solid-state devices.
Limitations
A limitation of electro-mechanical switch volumetric gas flow switches is their potential for mechanical wear and tear over time, which can lead to maintenance issues. Additionally, they may not be as suitable for environments with high levels of electrical interference, where solid-state switches might perform better.
Considerations
When selecting electro-mechanical switch volumetric gas flow switches, it is important to consider factors such as initial costs, operating expenses, and durability. These switches may have higher maintenance and replacement costs due to mechanical components that can wear out over time. However, they can offer high accuracy and reliability in specific applications, making them a valuable choice despite the potential for increased maintenance.
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]
- Switch Type: Electro-mechanical
- Mounting: Insertion
- Meter Technology: Thermal
- End Fittings: In-line Flanged
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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.75 to 1.00
- Meter Technology: Thermal
- Mounting: In-line
from Fluid Components Intl. (FCI)
The FLT93B BASIC insertion 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... [See More]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.75
- Meter Technology: Thermal
- Mounting: Insertion
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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.25 to 1.00
- Meter Technology: Thermal
- Mounting: Insertion
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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.75 to 1.00
- Meter Technology: Thermal
- Mounting: Insertion
from Brooks Instrument
Features. Wide range of flow ratings. Operating temperature range 33 to 125 °F (1 °C to 52 °C). Pressure ratings up to 500 psig / 34 bar. Two accuracy levels to choose from: 2% or 1% Full Scale. Optional high and low-flow reed switch or inductive alarm, also for safe use in explosive... [See More]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Meter Technology: Rotameter; Variable Area
- End Fittings: In-line Threaded
from Clark Solutions
Use the 7000/8000 series flow meters for measuring the flow rate of liquids, gases, compressed air and steam in closed pipes. We also make indicating flow switches and flow transmitters for process indication and control. Meters feature a large easy to read analog dial with 270 degree pointer... [See More]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.25 to 8.00
- Meter Technology: Orifice Plates
- Mounting: In-line
from Malema Sensors
The M-100X Series is an extremely sensitive flow switch. This has been engineered to monitor vital sample flow parameters for instrumentation in process control and inert blanket gases. It is used as an auxiliary alarm monitor for flow meters and is ideally suited for applications when installed on... [See More]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Pipe Diameter: 0.12 to 0.25
- End Fittings: In-line Threaded
from Sitron
The CF12 series of thermal flow switches is designed to monitor flow status of liquids and gases and can also be used to detect level. A chain of 8 LED ’s gives the user a visual indication of the flow status of the switch. There are two red LEDs that indicate whether or not the unit has... [See More]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Pipe Diameter: 0.25 to 0.50
- End Fittings: In-line Threaded
from ERDCO Engineering Corporation
In addition to the performance benefits of the 3400 Series flow rate meter, the 3500 Series Armor-Flo ™ includes switching capabilities. Adjustable flow switches provide positive indication of flow/no flow conditions or may be positioned to establish process limits. In either application the... [See More]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.50 to 12.00
- Meter Technology: Rotameter; Variable Area
- Mounting: Insertion
from Orange Research, Inc.
Fixed-Orifice Flowmeters. Our flowmeters are designed for those applications where a rotameter is not appropriate. Consider the inherent problems of rotameters--they are difficult to read, especially with dirty or opaque fluids, have low pressure ratings and allow vertical orientation only. Now... [See More]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Meter Technology: Fixed Orifice
- End Fittings: In-line Threaded
from KOBOLD Instruments, Inc.
Product Features. Control of Very Small Liquid or Gas Flows. Wetted Parts - SS 1.4305, Borosilicate Glass, FKM. Proximity Switch or Reed Contact. Vertical Connection for In-Line Mounting. Flow switch types KSR and SVN operate on the same principle as a float-type flow indicator. Provided that the... [See More]
- Switch Type: Electro-mechanical
- Process Media Type: Liquid; Gas
- Mounting: In-line
- Operating Pressure: 230
from Brooks Instrument
Reliable and affordable, MT3600 metal tube variable area flow meters satisfy the operational and reliability requirements for multiple industrial purge meter applications, such as metering coolants, pump seal fluids, lubricants under pressure and opaque fluids. Featuring high-temperature and... [See More]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Meter Technology: Rotameter; Variable Area
- End Fittings: In-line Threaded; ANSI 150# RF
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]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Meter Technology: Rotameter; Variable Area
- End Fittings: In-line Threaded
from Malema Sensors
The M-200X Series flow switches are engineered and field tested for sensing increasing and decreasing flow rates of gases or liquids. Pressure variation effects are minimal. This series features such versatility, economy, and accuracy that they can be used in virtually any application requiring... [See More]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Pipe Diameter: 0.38 to 0.75
- End Fittings: In-line Threaded
from Orange Research, Inc.
Variable-Area Flowmeters. Our flowmeters are designed for those applications where a rotameter is not appropriate. Consider the inherent problems of rotameters--they are difficult to read, especially with dirty or opaque fluids, have low pressure ratings and allow vertical orientation only. Now... [See More]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Meter Technology: Variable Area
- End Fittings: In-line Threaded
from Brooks Instrument
Need reliable, durable flow measurement in high-pressure, high-temperature or hazardous process settings? The MT3750 metal tube variable area flow meter from Brooks Instrument is your hard-working answer. Constructed from high-strength steel, the MT3750 Series VA flow meter features a compact design... [See More]
- Switch Type: Electro-mechanical
- Mounting: In-line
- Meter Technology: Rotameter; Variable Area
- End Fittings: Compression; In-line Threaded
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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.25 to 1.00
- Meter Technology: Rotameter; Variable Area
- Mounting: In-line
from Malema Sensors
The operating principle is based on a free floating magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can... [See More]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.25
- Meter Technology: Piston
- Mounting: In-line
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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.25 to 1.00
- Meter Technology: Rotameter; Variable Area
- Mounting: In-line
from Malema Sensors
The M-50 Series low flow, flow switches monitor increasing and decreasing flow. They utilize a single moving part which responds to fluid (liquid or gas) flowing within a system. These switches are suitable for a wide range of applications in industrial, biomedical, and OEM products. The flow... [See More]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.12 to 0.25
- Meter Technology: Piston
- Mounting: In-line
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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.25 to 1.25
- Meter Technology: Rotameter; Variable Area
- Mounting: In-line
from Malema Sensors
The operating principle is based on a free floating magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can... [See More]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.25 to 0.38
- Meter Technology: Piston
- Mounting: In-line
from Clark Solutions
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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.25 to 1.25
- Meter Technology: Rotameter; Variable Area
- Mounting: In-line
from Clark Solutions
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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.50 to 1.00
- Meter Technology: Rotameter; Variable Area
- Mounting: In-line
from Clark Solutions
The flow meter and switch model DS07 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]
- Switch Type: Electro-mechanical
- Pipe Diameter: 0.50 to 1.00
- Meter Technology: Rotameter; Variable Area
- Mounting: In-line