Data sheet
Electric expansion valve
Type ETS 500P, ETS 800P
ETS 500P, ETS 800P are extension to current electric expansion valves ETS program by integrate dual ETS 250 or dual ETS 400 in parallel. They can be used for precise liquid injection in evaporators for air conditioning and refrigeration applications with high capacity.
The valve piston and linear positioning design is fully balanced, providing bi-flow feature as well as solenoid tight shut-off function in both flow directions.
The valve design uses bi-polar drive providing very precise flow regulation.
ETS 500P and ETS 800P are compatible with electronic control solutions from Danfoss and other manufacturers.
Features |
• Refrigerants: R134a, R513A, R1234ze, |
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Balanced design. |
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other refrigerants are on request. |
• Built-in sight glass with moisture indicator. |
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• Rated capacity for R134a: |
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• Can be operated with flow in both |
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ETS 500P: 471 TR / 1652 kW |
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directions and are solenoid tight. |
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ETS 800P: 640 TR / 2245 kW |
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Low power consumption. |
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• Maximum working pressure: 25 bar / 363 psig. |
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• Danfoss controller type EKE 1 series can be used |
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• Compatible with oil free applications. |
to drive ETS 500P and ETS 800P. |
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• Precise positioning for optimal control |
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• For manual operation and service of ETS |
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of liquid injection. |
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valves an AST-G service driver is available. |
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© Danfoss | DCS (rm) | 2020.06 |
AI330734333508EN-000201 | 1 |
Data sheet | Electric expansion valve, type ETS 500P, ETS 800P
Approvals
RoHS
Technical data
Compatible refrigerants |
R134a, R513A, R1234ze. |
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For other refrigerants, please contact your local Danfoss representative. |
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Refrigerant oil |
All mineral oils and ester oils and also support oil free applications. |
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Comply with P.E.D. |
Yes |
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Max. opening pressure |
25 bar (363 psig) |
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differential (MOPD) normal flow |
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Max. opening pressure |
10 bar (145 psig) |
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differential (MOPD) reverse flow |
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Max. working pressure (PS/MWP) |
25 bar (363 psig) |
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Inlet fluid temperature |
-40 °C – 65 °C (-40 °F – 149 °F). For higher temperature valve, please contact Danfoss. |
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Ambient temperature |
-40 °C – 60 °C (-40 °F – 140 °F) |
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Material of Construction |
Body and AST enclosure in brass, connections in copper. |
Electrical data
Motor enclosure |
IP67 |
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Stepper motor type |
Bi-polar - permanent magnet |
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Step mode |
2 phase full step |
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Phase resistance |
52 Ω ±10% |
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Phase inductance |
85 mH |
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7.5° (motor) |
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Step angle |
0.9° (lead screw) |
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Gearing ration 8.5:1. (38/13)2:1 |
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Nominal voltage |
Constant voltage drive: 12 V dc -4% – 15% |
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Phase current |
Using chopper drive: 100 mA RMS -4% – 15% |
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Holding current |
Constant voltage drive: Depends on application |
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Chopper drive: full current allowed (100% duty cycle) |
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Max. total power |
Voltage / current drive: 5.5 / 1.3 W (UL: NEC class 2) |
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Step rate |
Constant voltage drive: 150 steps/sec |
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Chopper current drive: 0 – 300 steps/sec. 300 recommended |
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Total steps |
For each ETS 250 or ETS 400: 3810 [160 / -0] steps |
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Full travel time |
For each ETS 250 or ETS 400: 25.4 / 12.7 sec. (voltage / current) |
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Lifting height |
For each ETS 250 or ETS 400: 17.2 mm (0.7 in.) |
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Reference position |
Overdriving against the full close position |
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Electrical connection |
M12 connector |
Compatible Danfoss controllers |
Danfoss EKE 1 series |
© Danfoss | DCS (rm) | 2020.06 |
AI330734333508EN-000201 | 2 |
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