11/06/2024
As the industry faces tighter safety regulations, the 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 systems. By meeting the stringent UL requirements, these Danfoss valves are a critical component for manufacturers, installers and operators striving for compliance and enhanced system safety.
Danfoss EVR Solenoid Shut-Off Valves (SSOV) and NRV Check Shut-Off Valves (CSOV) are unidirectional, easy-to-install and offer comprehensive shut-off solutions.
Key features and benefits include:
- UL 60335-2-40 and UL 60335-2-89 compliance: Designed to fully comply with the new safety standards, ensuring safe operation of systems using flammable refrigerants.
- Enhanced leak safety: Effectively isolates flammable refrigerants during leaks, mitigating potential hazards and improving overall system safety.
- Fail-safe operation: Features automatic shut-off to prevent refrigerant backflow and leakage, providing an additional layer of protection during power failures.
- Versatile application: Ideal for a range of HVAC and refrigeration systems, offering flexibility across multiple system designs and requirements.
“Our EVR and NRV valves were developed with the primary focus of meeting the new UL 60335-2-40 and UL 60335-2-89 standards,” said Douglas Custodio, Director of Sales Development, Danfoss. “This is a crucial development for the industry as safety regulations evolve and we are excited to offer a solution that enhances safety while helping businesses remain compliant with the upcoming regulations.”
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 in HVAC and refrigeration systems.
Danfoss EVR Solenoid Shut-Off Valve (SSOV) and NRV Check Shut-Off Valve (CSOV) are unidirectional, easy-to-install and offer comprehensive shut-off solutions that significantly enhance safety in air conditioning, heat pump and refrigeration applications.
- Solenoid Shut-Off Valve (SSOV): Used in refrigeration systems to provide a secure separation of flammable refrigerants during leak detection.
- Check Shut-Off Valve (CSOV): Prevents refrigerant backflow, ensuring effective isolation when combined with the SSOV.
The SSOV 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.
About Danfoss
Danfoss engineers solutions that increase machine productivity, reduce emissions, lower energy consumption and enable electrification. Its solutions are used in such areas as refrigeration, air conditioning, heating, power conversion, motor control, industrial machinery, automotive, marine and off- and on-highway equipment. Danfoss is family-owned, employing more than 41,000 people, serving customers in more than 100 countries through a global footprint of 95 factories. For more information, visit https://www.danfoss.com.
