Flanged Velocity Flow Switches
Last Updated: April 1, 2025
Description
Flanged Velocity Flow Switches are devices designed to monitor the flow of fluids within a pipeline. They are equipped with a flanged connection, which allows them to be securely attached to the piping system. These switches are primarily used to detect the presence or absence of fluid flow, ensuring that the system operates within the desired parameters.
Working Principle
Flanged Velocity Flow Switches operate by detecting changes in the velocity of the fluid passing through the pipeline. They typically use a sensing element that responds to the flow of fluid, triggering a switch mechanism when a certain flow rate is reached. This mechanism is useful for maintaining system efficiency and safety by providing real-time monitoring and control of fluid flow. The switches are particularly valuable in applications where precise flow control is critical, as they help prevent system failures and optimize performance.
Applications
Flanged Velocity Flow Switches are used in a variety of industrial applications. For example, they are employed in oil and gas refineries for monitoring water treatment processes, ensuring that the flow of water is maintained at optimal levels. They are also used in natural gas fractionation facilities to monitor relief valve leaks, providing an essential safety measure by detecting low-velocity gas leaks that other technologies might miss. Additionally, these switches are crucial in offshore platform fire safety systems, where they ensure the reliable operation of sprinkler systems by monitoring the flow of seawater.
Advantages over other Materials - Plastics and Polymers
Flanged Velocity Flow Switches made from materials like brass or bronze offer significant advantages over those made from plastics and polymers. Brass and bronze are resistant to corrosion, rusting, and breakdown, making them ideal for use in harsh environments where durability is essential. In contrast, plastic switches, while lightweight and resistant to rust, may not perform well in conditions prone to freezing or high temperatures, limiting their applicability in certain industrial settings.
Limitations
One limitation of Flanged Velocity Flow Switches is their dependency on the correct installation and calibration to function accurately. If not properly installed, they may fail to detect flow changes, leading to potential system inefficiencies or failures. Additionally, these switches may not be suitable for all types of media, particularly those with high viscosity or particulate content, which can affect their performance.
Considerations
When selecting and implementing Flanged Velocity Flow Switches, several factors should be considered. Initial costs can vary depending on the material and design of the switch, with more robust materials like brass or bronze typically being more expensive. Operating expenses are generally low, but regular maintenance is necessary to ensure long-term accuracy and reliability. Durability is a key advantage of these switches, particularly those made from corrosion-resistant materials. However, replacement and maintenance costs should be factored into the overall cost of ownership, as these can vary based on the specific application and environmental conditions.
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]
- End Fittings: In-line Flanged
- Mounting: Insertion
- Meter Technology: Thermal
- Process Media Type: Liquid; Gas
from Fluid Components Intl. (FCI)
FCI ’s AS-FS Dual Output flow sensor provides fully redundant and separate outputs in the same outline dimension envelope of single sensor output designs. This is achieved by employing two electrically independent sensor heads and circuit boards; the second output assures continued operation... [See More]
- End Fittings: In-line Flanged
- Mounting: Insertion
- Meter Technology: Thermal
- Process Media Type: Liquid; Gas
from Fluid Components Intl. (FCI)
FCI's AS-FS Series flow switches utilize no moving parts, ultra-reliable thermal dispersion flow measurement technology to detect a flow rate above or below a predetermined set point at the sensing location. They are applied to signal low flow or high flow alarm conditions in air or liquid fluid... [See More]
- End Fittings: In-line Flanged
- Mounting: Insertion
- Meter Technology: Thermal
- Process Media Type: Liquid; Gas
from Sitron
The CF12 Thermal Dispersion Flow Switch with Exproof Housing (GX) comes standard with a Universal Power Supply: 24Vdc or 85 to 264Vac. This unit offers reliable liquid and gas flow detection ideally suited for just about any Flow/ No Flow application. Unlike the CF12 with either the small nylon... [See More]
- End Fittings: In-line Flanged; In-line Threaded
- Mounting: Insertion
- Pipe Diameter: 0.50 to 2.00
- Process Media Type: Liquid; Gas
from KOBOLD Instruments, Inc.
Product Features. Adjustable Switchpoint. Micro Switch Rated to 15 Amps. Install in Vertical or Horizontal Ducts. KOBOLD LPS air flow switches are widely used to control flow setpoints in HVAC applications. In addition to being robust, they have the added benefit of being inexpensive as well. The... [See More]
- End Fittings: In-line Flanged
- Mounting: Insertion
- Meter Technology: Paddlewheel
- Process Media Type: Gas
from Litre Meter Limited
Extended linearity electromagnetic flowmeter with PTFE liner designed for wafer fitting between flanges. 25mm to 300mm [See More]
- End Fittings: In-line Flanged
- Pipe Diameter: 0.98 to 11.81
- Meter Technology: Electromagnetic; Sonar; Turbine; Ultrasonic; Vortex (Shedding) Meter
- Mounting: In-line
from Sitron
The CF12RM Remote Mounted Thermal Dispersion Flow Switch is available in two versions: CF12RMDC (+/-24Vdc) or CF12RMAC (85 to 264Vac). Both of these models offer reliable liquid and gas flow detection ideally suited for just about any Flow/ No Flow application, with the flexibility of separate panel... [See More]
- End Fittings: In-line Flanged; In-line Threaded
- Mounting: Insertion
- Pipe Diameter: 0.50 to 2.00
- Process Media Type: Liquid; Gas
from KOBOLD Instruments, Inc.
Product Features. Available Materials of Construction Include Stainless Steel, Hastelloy C22, Polypropylene and PTFE. Line Sizes from 2 to 24 Inches. Can Be Supplied for Horizontal or Vertical Piping Runs. Variable Flap Measuring Technique Yields Very Low Head Loss. Excellent Tolerance to Dirty... [See More]
- End Fittings: In-line Flanged
- Mounting: In-line
- Meter Technology: Variable Area
- Process Media Type: Liquid
from Sitron
The CF12 Thermal Dispersion Flow Switch with a large 316 Stainless Steel housing (A2) comes standard with a Universal Power Supply: 24Vdc or 85 to 264Vac. This model is an excellent alternative when either plastic or aluminum is not recommended. The CF12 (A2) offers reliable liquid and gas flow... [See More]
- End Fittings: In-line Flanged; In-line Threaded
- Mounting: Insertion
- Pipe Diameter: 0.50 to 2.00
- Process Media Type: Liquid; Gas
from Sitron
The CF12 Thermal Dispersion Flow Switch with a small aluminum housing (G1) is available in two versions: CF12DC (+/-24Vdc) or CF12AC (85 to 264Vac). Both of these models offer reliable liquid and gas flow detection ideally suited for just about any Flow/ No Flow application with a small robust... [See More]
- End Fittings: In-line Flanged; In-line Threaded
- Mounting: Insertion
- Pipe Diameter: 0.50 to 2.00
- Process Media Type: Liquid; Gas