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Danfoss TUC thermostatic expansion valve, R404A/R507A, 1/4 in x 3/8 in solder ODF

Danfoss · HVAC & Refrigeration · Expansion Valves · Denmark · danfoss.com
Part Number
068U3740  ·  HS 8481.80
Danfoss TUC thermostatic expansion valve, R404A/R507A, 1/4 in x 3/8 in solder ODF

Danfoss TUC universal thermostatic expansion valve, OEM P/N 068U3740. Stainless-steel body and capillary (fixed orifice, adjustable superheat). Refrigerant R404A/R507A. Orifice assembly size 4. Nominal capacity 2.1 kW (0.6 TR) at the standard rating condition. Evaporating temperature range -30 to 10 °C. Inlet 1/4 in, outlet 3/8 in, solder ODF. Static superheat 0.5 °C (adjustable). Max working pressure 34 bar (500 psig). Hermetic laser-welded design per EU F-gas Regulation 517/2014. EAN 5702428934855.

Technical Specifications

BrandDanfoss
Part number068U3740
TypeTUC (fixed orifice, adjustable superheat)
CategoryExpansion valves — thermostatic
RefrigerantR404A/R507A
Nominal capacity2.1 kW (0.6 TR)
Orifice size4
Inlet connection1/4 in, Solder ODF
Outlet connection3/8 in, Solder ODF
Static superheat0.5 °C, adjustable
Evaporating temperature range-30 to 10 °C
Max working pressure34 bar (500 psig)
Body materialStainless steel
EAN5702428934855
ApprovalsEAC
Net weight0.145 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
DirectionStraightway
EU RoHS complianceYes with exemptions
EU RoHS exemption clause6(a)
Flow directionSingle-flow
Flow direction indicatorLaser engraved 1-way arrow
Fluid Group2
Inlet connection typeSolder, ODF
Inlet size [in]1/4 in
Max. Working Pressure [bar]34 bar
Max. Working Pressure [psig]500 psig
Orifice capacities [kW]2.1 kW
Orifice capacities [TR]0.6 TR
Outlet connection typeSolder, ODF
Outlet size [in]3/8 in
Parts includedBulb strap
PED categoryArt. 4, par. 3
Pressure equalizationInternally equalized
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)
RefrigerantsR404A/R507A
SealNo
Static Superheat (SS) [°C]0.5 °C
Static Superheat (SS) [°F]0.9 °F
Temperature range [°C] [max]10 °C
Temperature range [°C] [min]-30 °C
Temperature range [°F] [max]50 °F
Temperature range [°F] [min]-20 °F

Properties

MaterialStainless steel
Pressure rating34 bar (500 psig) max working pressure
Temperature range-30 to 10 °C (evaporating)
Standard size1/4 in x 3/8 in
MOQ1

Compatibility

Rated for R404A/R507A. Select capacity to the evaporator load and rating condition per the TU/TC data sheet before ordering.

Approvals

Attached Documents