Specifications

170 RK0YG302 © Danfoss 05/2007
ETS
ETS
Application
ETS is a series of electrically operated expansion valves for precise
liquid injection in evaporators for air conditioning and refrigeration
applications.
Function
The valve piston and linear positioning design is fully balanced,
providing bi-ow feature as well as solenoid tight shut-o func-
tion in both ow directions.
Advantages
• Precise positioning for optimal control of liquid injection.
• ETS 50 and 100 are designed for HFC/HCFC conditions including
R410A, providing 45.5 bar (660 psig) working pressure.
• ETS 50 and 100 have bi-metal connections providing "waterless
brazing", improved process and productivity.
• A built-in sight glass is an option for ETS 50 and 100.
• ETS 250 and 400 are designed for HFC/HCFC conditions, provid-
ing 34 bar (493 psig) working pressure.
• ETS 250 and 400 are both designed with built-in sight glass.
• Balanced design providing bi-ow operation as well as solenoid
tight shut-o function in both ow directions at MOPD 33 bar
(478.6 psig).
• Cable connectors on request.
• For manual operation and service of ETS valves an AST-g service
driver is available.
For further information, see lit. RI4JY.
Parameter ETS 50B/ETS 100B ETS 250/ETS 400
Compatibility HFC, HCFC HFC, HCFC
CE marking
Yes Yes
MOPD 33 bar (478 psi) 33 bar (478 psi)
Max. working pressure (PS/MWP) 45.5 bar (660 psi) 34 bar (493 psi)
Refrigerant temperature range –40°C to 10°C (–40°F to 50°F) –40°C to 10°C (–40°F to 50°F)
Ambient temperature –40°C to 60°C (–40°F to 140°F) –40°C to 60°C (–40°F to 140°F)
Total stroke 13 mm/16 mm (0.5 in./0.6 in.) 17.2 mm (0.68 in.)
Motor enclosure IP 67 IP 67
Technical data