Danfoss Types ETS250/034G2602,ETS400/034G3501 Electric expansion valve Features
• Precise positioning for optimal control of liquid injection.
• Wide range for all common refrigerants R22, R134a, R404A, R407A, R407C, R407F, R422B,R422D, R438A, R448A, R449A, R450A, R452A,R507, R513A, R410A, R1234ze and other refrigerants.
Special valves for R744 (CO2) are available.
• ETS 12.5, ETS25, ETS 50 and ETS100 provides working pressure of 45.5 bar / 660 psig and ETS 250, ETS 400 provides 34 bar / 493 psig.
• All ETS can be operated with flow in both directions and are solenoid tight.
• ETS 50 to ETS 400 have a balanced design.
• ETS 50 and ETS 100 feature improved process and productivity due to waterless brazing i.e soldering without wet cloth for cooling.
• Special ETS 250 and ETS 400 available for oil free applications.
• ETS 50 – ETS 400 are all designed with built-in sight glass with moisture indicator.
• Internal and external corrosion resistant design.
• Low power consumption.
• Cable and connector assemblies as accessories.
• EKC 316A, EKC 312 and EKD 316 are examples of Danfoss controllers with drivers matching the ETS needs.
• Danfoss EKE 1A, EKE 1B, EKE 1C, MCX061V,MCX152V are examples of Danfoss controllers with drivers matching the ETS needs.
• For manual operation and service of ETS valves an AST-g service driver is available.
Danfoss Types ETS250/034G2602,ETS400/034G3501 Electric expansion valve Technical data
Compatible refrigerants
Wide range for all common refrigerants R22, R134a, R404A, R407A, R407C, R407F, R422B,
R422D, R438A, R448A, R449A, R450A, R452A, R507, R513A, R410A, R1234ze and other
refrigerants.
Special valves for R744 (CO2) are available.
For other refrigerants, please contact your local Danfoss representative.
Refrigerant oil All mineral oils and ester oils and special ETS 250 and ETS 400 support oil free applications
Comply with P.E.D. Yes
Max. opening pressure
differential (MOPD) normal flow
33 bar (478.6 psi)
Max. opening pressure
differential (MOPD) reverse flow
ETS 12.5, ETS 25, ETS 50, ETS 100: 33 bar (478.6 psi)
ETS 250, ETS 400: 10 bar (145 psi)
Max. working pressure (PS/MWP)
ETS 12.5, ETS 25, ETS 50, ETS 100: 45.5 bar (660 psig)
ETS 250, ETS 400: 34 bar (493 psig)
Inlet fluid temperature -40 °C – 65 °C (-40 °F – 149 °F). For higher temperature valve, please contact Danfoss.
Ambient temperature -40 °C – 60 °C (-40 °F – 140 °F)
Material of Construction
ETS 50, ETS 100: Body and AST enclosure in brass, connections in bi-metal
(stainless steel/copper).
ETS 12.5, ETS 25, ETS 250, ETS 400: Body and AST enclosure in brass, connections in copper.
Danfoss Types ETS250/034G2602,ETS400/034G3501 Electric expansion valve Electrical data
Motor enclosure IP67
Stepper motor type Bi-polar - permanent magnet.
Step mode 2 phase full step.
Phase resistance 52 Ω ±10%
Phase inductance 85 mH
Step angle
7.5° (motor),
0.9° (lead screw),
Gearing ration 8.5:1. (38/13) 2 :1
Nominal voltage
Constant voltage drive: 12 V dc -4% – 15%,
150 steps/sec.
Phase current Using chopper drive: 100 mA RMS -4% – 15%
Holding current
Constant voltage drive: Depends on application.
Chopper drive: full current allowed (100% duty cycle)
Max. total power Voltage / current drive: 5.5 / 1.3 W (UL: NEC class 2)
Step rate
Constant voltage drive: 150 steps/sec.
Chopper current drive: 0 – 300 steps/sec. 300 recommended
Total steps
ETS 12.5, ETS 25, ETS 50: 2625 [160 / -0] steps
ETS 100: 3530 [160 / -0] steps
ETS 250, ETS 400: 3810 [160 / -0] steps
Full travel time
ETS 12.5, ETS 25, ETS 50: 17 / 8.5 sec. (voltage / current)
ETS 100: 23 / 11.5 sec. (voltage / current)
ETS 250, ETS 400: 25.4 / 12.7 sec. (voltage / current)
Lifting height
ETS 12.5, ETS 25, ETS 50: 13 mm (0.5 in.)
ETS 100: 16 mm (0.6 in.)
ETS 250, ETS 400: 17.2 mm (0.7 in.)
Reference position Overdriving against the full close position
Electrical connection M12 connector
Compatible Danfoss controllers Danfoss EKE 1A, EKE 1B, EKE 1C, MCX061V, MCX152V and more
connections in copper.
Danfoss Types ETS250/034G2602,ETS400/034G3501 Electric expansion valve selection
Type
Rated capacity 1 ) Connection
R410A R407C R22 R134a R404A ODF × ODF (A × B) Code no.
[kW] [TR] [kW] [TR] [kW] [TR] [kW] [TR] [kW] [TR] [in.] [mm] Single pack
ETS 50 262.3 75.7 240.5 69.1 215 62 170 48.9 161.4 46.3
7 / 8 × 7 / 8
22 × 22 034G1708
7 / 8 × 1 1 / 8
22 × 28 034G1705
1 1 / 8 × 1 1 / 8 28 × 28 034G1706
1 1 / 8 × 1 3 / 8 28 × 35 034G1704
ETS 100 488.4 140.9 447.8 128.7 400.4 115.4 316.5 91.2 300.5 86.6
1 1 / 8 × 1 1 / 8 28 × 28 034G0507
1 1 / 8 × 1 3 / 8 28 × 35 034G0501
1 3 / 8 × 1 3 / 8 35 × 35 034G0508
1 5 / 8 × 1 5 / 8 – 034G0505
ETS 50 and ETS 100 have integrated sight glass
Type
Rated capacity 1 ) Connection
R410A R407C R22 R134a R404A ODF × ODF (A × B) Code no.
[kW] [TR] [kW] [TR] [kW] [TR] [kW] [TR] [kW] [TR] [in.] [mm] Single pack
ETS 250 – – 1212 349 1106 319 874 252 828 239
1 1 / 8 × 1 1 / 8 28 × 28 034G2600
1 3 / 8 × 1 3 / 8 35 × 35 034G2601
1 5 / 8 × 1 5 / 8 – 034G2602
– 42 × 42 034G2611*
ETS 400 – – 1933 556 1764 509 1394 402 1320 381
1 5 / 8 × 1 5 / 8 – 034G3500
2 1 / 8 × 2 1 / 8 54 × 54 034G3501