Danfoss released new EVR and NRV safety valves, approved to meet UL 60335-2-40 and UL 60335-2-89 standards.

As the industry faces tighter safety regulations, Danfoss EVR solenoid valves and NRV check valves provide a solution for separating flammable refrigerant charges (A2L, A2, or A3) in case of leaks, thereby reducing the total releasable charge in higher-capacity refrigeration systems.

The new valves are designed to fully comply with the new UL 60335-2-40 and UL 60335-2-89 safety standards, ensuring safe operation of systems using flammable refrigerants. Additionally, the valves effectively isolate flammable refrigerants during leaks, mitigating potential hazards and improving overall system safety.

Featuring automatic shut-off to prevent refrigerant backflow and leakage, the valves also provide an additional layer of protection during power failures. The EVR Solenoid Shut-Off Valve (SSOV) and NRV Check Shut-Off Valve (CSOV) are unidirectional and offer comprehensive shut-off solutions. The SSOV to provides a secure separation of flammable refrigerants during leak detection. It is designed with a normally closed (NC) configuration, ensuring fail-safe closing in the event of an electrical power failure, and is approved to meet the required leak rates in a closed condition. The CSOV prevents refrigerant backflow, ensuring effective isolation when combined with the SSOV.

Danfoss’ EVR and NRV valves are available in multiple sizes, ensuring they are adaptable to a wide range of system configurations and needs. The valves are easy to install, minimizing disruption during installation and offering a reliable solution for maintaining safety standards for refrigeration systems.

Danfoss: www.danfoss.com