Foods Production Companies Install New Relief Valve Monitoring Systems


Relief Valve Wiring Installation

Two more Refrigerant Relief Valve Monitoring and Reporting Systems were brought online in December at a global Foods production company. Commissioning of the Refrigerant Relief Valve Monitoring and Reporting System went smoothly and as expected. The system mechanical and electrical installation was inspected and validated ensuring that the system components and wiring were installed correctly.

During the startup phase of the project, we validated each pressure vessel sensor and each relief valve sensor in the refrigeration system. We also validated the program functionality by simulating a relief valve release event on each pressure vessel and each relief valve. Additionally, we validated that each screen appears at the proper time and messages are correct along with validating the refrigerant loss calculations.

The Refrigerant Relief Valve Monitoring and Reporting System is real, viable and protecting our customers, their communities, and the environment.

Manage Ammonia Releases With Easier Reporting


If you use a refrigeration system for your business, it is highly likely that you utilize anhydrous ammonia refrigerant in your various cooling processes. Using an effective, but toxic chemical comes with many responsibilities.

Part of this includes laws and regulations to protect from the hazards of an accidental release. The EPA obligates any business with more than 10,000 pounds of anhydrous ammonia to submit a risk management plan. Additionally, any discharge of Ammonia over 100 pounds must be reported in a detailed manner. NOTE: Some dangerous gases have lower reporting requirements for a loss or discharge.

At Barrow Systems, we offer a full scaled solution to such responsibilities. Our patented Refrigerant Relief Valve Monitoring and Reporting System© (RRVMRS) collects and reports discharge events of dangerous gasses in a way that makes it easy for government compliance.

Patented Relief Valve System:

During a relief valve release, a detailed data report is compiled together. Below is the accurate data the system gathers:

Start Time & End Time

The measured event start time, measured event end time, and date is recorded. The exact duration of the discharge is recorded as well.

Pressure Valve Location

The system identifies the exact vessel and relief device that is used during the process. This makes it easier to pinpoint the potential cause of the release during an inspection.

Amount of Ammonia Loss

The exact amount of ammonia that is released is reported in pounds.This works for other pressurized gasses that need to be monitored as well.

Barrow Systems’ Refrigeration Relief Valve Monitoring System©


At Barrow Systems, we pride ourselves in making Refrigeration Systems that not just saves money, but safeguards the lives of the operators. Our patented Refrigeration Relief Valve Monitoring System © (RRVMRS) detects abnormal pressures of ammonia before you know it yourself.

The abnormal pressure detection in any pressure vessel and “Early Bird” alarm to attract the attention of the operator is a highlighted feature of the RRVMRS. With real-time detection, our system minimizes downtime and helps the operator address potential high-pressure conditions before they become a problem.


Emergency Alarm System

Elevated pressures trigger the system alarm to alert relevant personnel. A preventative measure this way solves the problem before the pressure relief valve is lifted.

Accurate Data

Every pressure location is displayed on an HMI screen. The data captured during a release event includes not just the time and date, but also the exact location and quantity of the release.

Real-Time Detection

Regardless of the time of day, the relief system continues to monitor and report the status of the refrigeration systems vessels. This leaves your safety to us while increasing your productivity.

Click to Learn More About Our Patented Relief Valve Monitoring System