STA 421 S-B3 is a high-performance industrial liquid flow sensor designed for accurate monitoring of water and oil media in automated process systems. Built for demanding industrial environments, this compact flow monitoring sensor combines corrosion-resistant titanium construction with a durable metal-ceramic coating to deliver reliable long-term operation. Its G1/2 screw-in design and M12 connector allow seamless integration into industrial pipelines, machine cooling systems, lubrication circuits, and process automation installations.
Manufacturers and automation engineers rely on the STA 421 S-B3 flow sensor for stable fluid monitoring, reduced equipment downtime, and improved operational safety. Designed for use with external amplifiers offering analogue or switching outputs, the sensor supports precise process control across a wide range of industrial applications.
Key Features
- Industrial flow sensor for water and oil applications
- Corrosion-proof titanium housing with metal-ceramic coating
- Compact 34 mm sensor length for space-saving installation
- G1/2 process connection for secure mounting
- M12 electrical connector for reliable connectivity
- Suitable for T-piece connectors and welding sleeve installation
- Designed for use with associated amplifiers
- Stable monitoring in demanding industrial conditions
- High compressive strength up to 100 bar
- IP67 protection for harsh operating environments
Application
The STA 421 S-B3 liquid flow sensor is ideal for industrial process monitoring where continuous fluid movement must be accurately detected and controlled. Common applications include:
- Industrial cooling circuits
- Pump protection systems
- Lubrication monitoring
- Hydraulic and oil circulation systems
- Water treatment installations
- Process automation equipment
- Industrial machinery cooling lines
- Chemical and manufacturing process systems
Its ability to monitor both water and oil flow makes it suitable for diverse industrial sectors including manufacturing, automation, machine building, and fluid handling operations.
Design & Functionality
Engineered with a titanium body and advanced metal-ceramic coating, the STA 421 S-B3 offers superior resistance against corrosion, wear, and aggressive industrial environments. The sensor detects liquid flow within a range of 1 to 150 cm/s for water and 3 to 300 cm/s for oil, ensuring accurate performance across multiple process conditions.
Its compact immersion depth of 34 mm allows flexible installation in confined spaces without compromising flow measurement reliability. The M12 plug system supports secure electrical integration, while compatibility with external amplifiers provides flexible switching or analogue output options for advanced automation systems.
The sensor also features fast startup and reaction times, enabling quick adaptation to changing flow conditions and improved process responsiveness.
Total Crossed Beams
The STA 421 S-B3 utilizes advanced sensing technology to deliver stable liquid flow detection with consistent monitoring accuracy. Its optimized sensor structure ensures dependable performance in continuous industrial operation.
Beam Pitch Options
The compact sensor geometry supports installation flexibility across industrial pipe systems and process assemblies while maintaining efficient flow detection sensitivity.
Intrinsic Synchronism
Designed for seamless operation with compatible amplifiers, the sensor provides synchronized flow monitoring and signal processing for reliable industrial automation performance.
Operational Advantages
- Enhances equipment protection by detecting insufficient flow conditions
- Minimizes production downtime through reliable process monitoring
- Supports efficient maintenance planning and operational control
- Improves automation accuracy in fluid handling systems
- Delivers dependable long-term performance in corrosive environments
- Simplifies installation with compact mechanical design
- Provides stable operation under varying temperature conditions
The STA 421 S-B3 industrial flow sensor is an ideal solution for companies seeking dependable liquid flow monitoring in demanding industrial applications where durability, precision, and operational reliability are critical.
