Reliable Tank Overfill Protection
A tank overfill can mean a costly spill at best and a major process safety incident at worst. Diamond-SIS® provides a cyberproof, safety-certified solution designed to stop a transfer before an overfill occurs.
As a dedicated single-loop logic solver, Diamond-SIS® provides simple, dependable protection without the complexity of a PLC-based safety system. Its proven performance, long service life, and straightforward design give operators confidence that the overfill protection will be available when needed.
Protect your tanks, your facility, and your operation with an overfill prevention system you can trust at a cost you can afford. Install Diamond-SIS® for tank management and automated overfill protection.

Features and Benefits:
- API 2350 Compliant
- IEC 61508 SIL 3 Certified
- Class I Division 2 Rated
- Independent of tank gauging system
- Cyber-proof via air gapped and non-programmable countermeasures
- Low capital cost with easy installation
- Local panel for alarms and operator controls
- Design documents and maintenance instructions
- Annual maintenance packages for long-term support


