FillSafe DEFender
Efficient and Reliable DEF Tank Filling
Efficient and Reliable DEF Tank Filling
Industrial operations worldwide recognize the challenges of managing Diesel Exhaust Fluid (DEF), essential for reducing emissions but notoriously difficult to handle properly.
Banlaw’s FillSafe DEFender is the ultimate integrated DEF transfer and tank overfill prevention solution for industrial worksites. It helps you address your pain points, from preventing spills and leaks to reducing fleet downtime and maintenance costs. FillSafe DEFender is engineered for Accuracy, Reliability, Safety, and Efficiency in diesel exhaust fluid handling.
The FillSafe DEFender solution
The FillSafe DEFender solution
FillSafe DEFender is a pre-engineered and pre-kitted solution for transferring diesel exhaust fluid (DEF) and preventing tank overfill on industrial worksites. It combines the benefits of Banlaw DEFMate products, Banlaw’s FillSafe Power products, and our Engineering expertise to provide a reliable, flexible and efficient solution for fleet owners.

Key Benefits of FillSafe DEFender
Key Benefits of FillSafe DEFender
- Prevents incorrect filling of DEF tanks: no overfills, no underfills, and no tank pressurization, ensuring that each tank is filled accurately and safely every time
- Avoids DEF crystallization by keeping fluid temperatures above freezing point and utilizing a closed transfer system with dry break fittings, ensuring diesel exhaust fluid gets transferred in optimal condition
- Ensures fluid cleanliness with specialist flush-faced DEF transfer nozzles and receivers, built tough with high-quality stainless steel and DEF-compatible seals for a long serviceable life
- Prevents leaks, spills, and sprays during DEF/AdBlue® transfer, maintaining environmental safety, avoiding degradation of process equipment and reducing clean-up costs
- Provides peace of mind: Integrated system fault detection and 'full-tank level' status' are shown using bright lights for the operator, contributing to worksite safety and operational assurance
- Reduces the hassle of upgrading your fleet. No engineering burden and a simple, efficient-to-install DEFender kit for each vehicle saves you time and guarantees the effectiveness of selected components
What do you receive?
What do you receive?
All the critical system components with minimal on-machine electrical work and no significant vehicle customizations required.
FillSafe Power components
FillSafe Power components



DEFMate components
DEFMate components



DEFender installation components
DEFender installation components


Revolutionize your DEF management with FillSafe DEFender
Revolutionize your DEF management with FillSafe DEFender
Ensure compliance, safety, and operational efficiency.
DEFender supersedes your old splash-fill DEF dispensing process but does not prevent it from being used as a backup when required. FillSafe DEFender gives you complete flexibility and dramatically improved process assurance.
FillSafe Power tank overfill protection and flushed-face fluid transfer couplers are proven Banlaw technologies that have been refined over decades. For additional information on our products, please:
With over 45 years of experience managing high-value fluid assets, successful bulk fluids management projects in over 30 countries, and a global network of skilled product distributors, Banlaw provides unparalleled technology development and engineering expertise, dovetailed with local product and solution support where you need it.
