High Pressure Expansion Valves CX Series from Emerson

The newly launched stepper motor driven valves from the leading expert for HVAC/R solutions ensure precise control of R744 refrigerant mass flow in air conditioning, refrigeration and heat pumps applications. The series called CX features a maximum working pressure of 120 bar and can be used variably, e.g as high pressure expansion valve, liquid injection duty, or hot gas bypass.

Officially launched at Chillventa 2010, Emerson Climate Technologies is now adding its new high-pressure expansion valves CX series to the R744.com product database. The maximum working pressure of 120 bar makes the control valves perfectly suitable for transcritical CO₂ applications. In addition, the fully hermetic design ensures high quality and security as no thread joints are between valve body and motor compartment.

The series includes the models CX4, CX5, CX6 and CX7 with flow rates (kv value) varying
from 0.21 to 5.58 m³/h.

Basic specifications of CX Series High Pressure Expansion Valves

For transcritical CO₂ applications
Maximum working pressure, PS: 120 bar
Test pressure, PT: 132 bar
Approved for system test pressure up to 172 bar
Burst pressure: >360 bar
Control valves can be used as high pressure expansion valve, liquid injection valve, hot gas bypass or suction gas regulator
Extremely wide capacity range (10 ... 100%)
Very short full stroke time
High resolution and excellent repeatability
Positive shut-off of valve to eliminate the use of an additional solenoid valve

About Emerson Climate Technologies

Emerson Climate Technologies™, a business of Emerson, is the world’s leading provider of heating, ventilation, air conditioning and refrigeration solutions for residential, industrial, and commercial applications. The group provides customised, integrated climate control solutions for customers worldwide through its renowned brands, such as Copeland Scroll™ and Alco Controls.