In tank barge operations, overfill protection systems are only as reliable as the sensor doing the work. While alarm panels and systems often get the attention, the sensor itself is the critical point of contact—the moment where cargo level meets safety response.
The Timco LFA-S High Level / Overfill Alarm Sensor is built specifically for that responsibility. Designed to meet regulatory requirements while delivering consistent, long-term performance, the LFA-S focuses on one thing: dependable activation when it matters most.
Built for Compliance, Designed for Confidence
The LFA-S is USCG accepted and satisfies 46 CFR 39.2009(a)(2) requirements as part of a complete overfill prevention system when installed in accordance with 46 CFR hazardous location standards. This makes it a critical component for operators looking to meet inspection requirements without second-guessing system performance.
Compliance, however, is only the starting point. In real-world use, operators need a sensor that activates consistently across varying cargo types, environmental conditions, and loading practices. The LFA-S is engineered to deliver that level of confidence.
Consistent Performance Across Cargo Types
One of the challenges in tank barge operations is variability. Different cargos behave differently—density, viscosity, and surface conditions can all impact how a sensor performs.
The LFA-S addresses this with a 316 stainless steel float design, rated for pressure up to 120 PSI and capable of operating in cargo specific gravities down to 0.6. This ensures reliable activation across a wide range of cargo types, reducing the risk of inconsistent alarm set points.
For operators, that means fewer uncertainties and greater trust in the system during loading operations.
Sealed Switching for Long-Term Reliability
At the core of the LFA-S is a hermetically sealed, normally closed latching reed switch, designed for long service life in harsh marine environments. This sealed design protects the internal switching mechanism from moisture, corrosion, and contamination—common causes of failure in less robust sensors.
Because the switch is interchangeable across level alarm sensors, maintenance and replacement are simplified, helping fleets reduce downtime and keep systems operational without complex servicing.
Simple Design, Built for Tankermen
Ease of use is just as important as performance. The LFA-S incorporates a lift-to-test rod system, allowing tankermen to verify proper operation before every loading event, as required by standard procedures.
The design includes:
- A sealed rod assembly with weather protection
- A large, easy-to-grip stainless steel weather-tight junction box
- Clearly stamped High Level (HL) and Overfill (OF) settings for quick identification
This makes testing straightforward, even in demanding conditions, and ensures that required pre-loading checks can be completed quickly and confidently.
Built for Harsh Marine Conditions
Tank barge equipment must perform in environments that are anything but forgiving—constant exposure to moisture, temperature swings, and cargo vapors.
The LFA-S is constructed entirely from stainless steel and designed for mounting on standard 8-inch flanged spool pieces, making it compatible with common installation setups. The rugged construction ensures long-term durability, while the sealed components help extend service life even under continuous exposure.
Each unit is tested, serialized, and built to deliver years of dependable service without frequent intervention.
Reducing Risk Through Better Design
Overfill events are among the most serious risks in tank barge operations. Preventing them requires not just compliance, but reliability at every level of the system.
The LFA-S reduces risk by:
- Providing consistent activation across cargo types
- Protecting internal components from environmental failure
- Simplifying required testing procedures
- Supporting long-term, low-maintenance operation
This combination ensures that the sensor performs when needed—without added complexity or uncertainty.
A Critical Component in a Complete System
While the LFA-S functions as part of a larger overfill protection system, its role is foundational. A reliable sensor supports the performance of alarm panels, telemetry systems, and overall safety protocols.
When paired with Timco’s HL/OF alarm systems and telemetry solutions, the LFA-S becomes part of a fully integrated approach to cargo monitoring and safety—combining compliance, visibility, and operational confidence.
Conclusion
In tank barge operations, reliability isn’t optional—especially when it comes to overfill protection. The Timco LFA-S High Level / Overfill Alarm Sensor is designed to deliver consistent, dependable performance in the environments that matter most.
With rugged stainless construction, sealed switching, and a simple, tankerman-friendly design, it provides the confidence operators need to meet compliance requirements and maintain safe, efficient operations.
Short Summary (for reuse)
The Timco LFA-S High Level / Overfill Alarm Sensor is a USCG-compliant, stainless steel sensor designed for reliable performance across varying cargo types and harsh marine conditions. With a sealed reed switch, lift-to-test functionality, and durable construction, it delivers consistent activation and long-term safety for tank barge overfill systems.