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Datasheet generated 2026-10-07
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Danfoss TUBE thermostatic expansion valve, R290, 6 mm x 12 mm solder ODF 068U3882

Danfoss · HVAC & Refrigeration · Expansion Valves · Denmark · danfoss.com
Part Number
068U3882  ·  HS 8481.80
Danfoss TUBE thermostatic expansion valve, R290, 6 mm x 12 mm solder ODF 068U3882

Danfoss TUBE universal thermostatic expansion valve, OEM P/N 068U3882. Externally equalized, stainless-steel body and capillary (fixed orifice, adjustable superheat). Refrigerant R290. Orifice assembly size 4. Nominal capacity 2.55 kW (0.72 TR) at the standard rating condition. Evaporating temperature range -40 to 10 °C. Inlet 6 mm, outlet 12 mm, external equalizer 6 mm, solder ODF. Static superheat 3 °C (adjustable). Capillary/bulb length 800 mm. Max working pressure 34 bar (500 psig). The external equalizer references evaporator-outlet pressure for stable superheat on larger or high-pressure-drop coils. Suitable for flammable-refrigerant (A3) R290 propane systems built to the applicable safety standard. Hermetic laser-welded design per EU F-gas Regulation 517/2014. EAN 5702428542623.

Technical Specifications

BrandDanfoss
Part number068U3882
TypeTUBE (fixed orifice, adjustable superheat, externally equalized)
CategoryExpansion valves — thermostatic
RefrigerantR290
Nominal capacity2.55 kW (0.72 TR)
Pressure equalizationExternally equalized
Orifice size4
Inlet connection6 mm, Solder ODF
Outlet connection12 mm, Solder ODF
Equalizer connection6 mm, Solder ODF
Static superheat3 °C, adjustable
Evaporating temperature range-40 to 10 °C
Capillary tube / bulb length800 mm
Max working pressure34 bar (500 psig)
Body materialStainless steel
EAN5702428542623
ApprovalsEAC
Net weight0.15 Kilogram
Product groupExpansion valves
ApprovalEAC
Capillary tube length [in]31 in
Capillary tube length [mm]800 mm
China RoHS complianceYes with exemptions
China RoHS exemption clause7.1
Connection materialBi-metal: Steel/copper
DirectionAngleway
Equalization connection typeSolder, ODF
Equalization size [mm]6 mm
EU RoHS complianceYes with exemptions
EU RoHS exemption clause6(a)
Flow directionBi-flow
Flow direction indicatorLaser engraved 1-way arrow
Fluid Group1
Inlet connection typeSolder, ODF
Inlet size [mm]6 mm
Max. Working Pressure [bar]34 bar
Max. Working Pressure [psig]500 psig
Orifice capacities [kW]2.55 kW
Orifice capacities [TR]0.72 TR
Outlet connection typeSolder, ODF
Outlet size [mm]12 mm
Parts includedBulb strap
PED categoryArt. 4, par. 3
Rated cap. cond. Range N [IMP]OS=7.2 ºF
Rated cap. cond. Range N [SI]OS=4K
REACH Candidate List substancesLead (CAS no. 7439-92-1)
RefrigerantsR290
SealNo
Static Superheat (SS) [°C]3 °C
Static Superheat (SS) [°F]5.4 °F
Superheat settingAdjustable
Temperature range [°C] [max]10 °C
Temperature range [°C] [min]-40 °C
Temperature range [°F] [max]50 °F
Temperature range [°F] [min]-40 °F

Properties

MaterialStainless steel
Pressure rating34 bar (500 psig) max working pressure
Temperature range-40 to 10 °C (evaporating)
Standard size6 mm x 12 mm
MOQ1

Compatibility

Rated for R290. Select capacity to the evaporator load and rating condition per the TU/TC data sheet before ordering.

Approvals

Attached Documents