NRVT
NRVT piston type check valves is designed for installation in discharge line to prevent refrigerant migration to protect compressor and enable the pressure equalization of rotary compressor before startup. In the meanwhile, this valve can be used in other installation positions of CO2 systems such as hot gas and suction lines.
Features and benefits
- Stable operation covering full map of compressor
- Fulfills high temperature and pressure requirements for the discharge lines used in transcritical CO2 systems
- Hermetic brass body design
- Compatible to connect both copper/stainless steel tubes
Cold Rooms
NRVT is a piston-type check valve designed for CO₂ refrigeration systems, especially transcritical CO₂ applications. It is used mainly in the discharge line to prevent refrigerant migration, protect the compressor, and support pressure equalization of rotary compressors before startup.
In cold room systems that use CO₂, NRVT belongs to the refrigeration line-component layer. Its role is more specific than a standard check valve because it supports compressor protection and pressure equalization in high-pressure CO₂ system layouts, while still maintaining the basic check-valve function of controlling flow direction.