Danfoss ETS 8M55S electric expansion valve, 7/8 in ODF solder, orifice 5.5 mm, S-shape flow, copper, 49 bar MWP (034G8817)
Danfoss · HVAC & Refrigeration · Expansion Valves
Danfoss ETS 8M55S stepper-motor electric expansion valve, code 034G8817. Copper-body in-line valve with 7/8 in (22 mm) Solder ODF copper inlet and outlet, 5.5 mm orifice and a S-shape flow characteristic, bi-flow. Permanent-magnet stepper (1-2 half-step excitation, 500 half-steps) gives precise refrigerant expansion and flow control for modular chillers, single-package air conditioners and low-ambient heat pumps. Rated 102 kW / 29 TR on R410A. MWP 49 bar (711 psig); MOPD 39 bar forward / 32 bar reverse. Refrigerant and ambient -30 to 70 °C. Driven by a compatible Danfoss (or third-party) electronic controller, ordered separately. OEM P/N 034G8817.
Specifications
- Part number
- 034G8817
- HS code
- 8481.80
- Material
- Copper
- Pressure rating
- 49 bar (711 psig) MWP; MOPD 39 bar fwd / 32 bar rev
- Temperature range
- -30 to 70 °C refrigerant and ambient
- Standard size
- 7/8 in (22 mm) ODF
- Thread standard
- Solder ODF
Compatibility
ETS 8M is a stepper valve — it does not operate stand-alone. Drive it with a compatible Danfoss electronic controller (or a compatible third-party controller). Confirm orifice / flow characteristic (L = linear, S = S-shape), connection size and refrigerant before ordering. Linear (L) and S-shape (S) variants share body and connection but differ in the flow-vs-opening curve used for controller tuning.
Standards
- EN 60730-1
- PED 2014/68/EU (Article 4 paragraph 3)
- EU RoHS
- China RoHS
Approvals
- UL Recognized (cURus)
- EU RoHS
- China RoHS
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