Danfoss TUH hot gas bypass regulator, OEM P/N 068U3750. Stainless-steel body and capillary, fixed orifice with adjustable superheat, used to inject hot gas for capacity control and to maintain a stable evaporating pressure at low load. Refrigerant R410A. Orifice assembly size 9. Nominal capacity 7.3 kW (2.1 TR) at the standard rating condition. Evaporating temperature range -1 to 10 °C (evaporating). Inlet 3/8 in, outlet 1/2 in, solder ODF. Static superheat 2 °C (adjustable). Max working pressure 45.5 bar (660 psig). Hermetic laser-welded design. EAN 5702428941563.
| Brand | Danfoss |
| Part number | 068U3750 |
| Type | TUH (hot gas bypass regulator, adjustable superheat) |
| Category | Hot gas bypass regulator |
| Refrigerant | R410A |
| Nominal capacity | 7.3 kW (2.1 TR) |
| Orifice size | 9 |
| Inlet connection | 3/8 in, Solder ODF |
| Outlet connection | 1/2 in, Solder ODF |
| Static superheat | 2 °C, adjustable |
| Evaporating temperature range | -1 to 10 °C (evaporating) |
| Max working pressure | 45.5 bar (660 psig) |
| Body material | Stainless steel |
| EAN | 5702428941563 |
| Approvals | EAC |
| Net weight | 0.142 Kilogram |
| Product group | Press. and temp. regul. valves |
| Approval | EAC |
| Capillary tube length [in] | 31 in |
| Capillary tube length [mm] | 800 mm |
| China RoHS compliance | Yes with exemptions |
| China RoHS exemption clause | 7.1 |
| Connection Code | (3002:X:10; 3002:X:13) |
| Connection material | Bi-metal: Steel/copper |
| Direction | Angleway |
| EU RoHS compliance | Yes with exemptions |
| EU RoHS exemption clause | 6(a) |
| Flow direction | Single-flow |
| Flow direction indicator | Laser engraved 1-way arrow |
| Fluid Group | 2 |
| Identical product | 068U2969 |
| Inlet connection type | Solder, ODF |
| Inlet size [in] | 3/8 in |
| Max. Working Pressure [bar] | 45.5 bar |
| Max. Working Pressure [psig] | 660 psig |
| Orifice capacities [kW] | 7.3 kW |
| Orifice capacities [TR] | 2.1 TR |
| Outlet connection type | Solder, ODF |
| Outlet size [in] | 1/2 in |
| Parts included | Bulb strap |
| PED category | Art. 4, par. 3 |
| Pressure equalization | Internally equalized |
| REACH Candidate List substances | Lead (CAS no. 7439-92-1) |
| Refrigerants | R410A |
| Seal | No |
| Static Superheat (SS) [°C] | 2 °C |
| Static Superheat (SS) [°F] | 3.6 °F |
| Superheat setting | Adjustable |
| Temperature range [°C] [max] | 10 °C |
| Temperature range [°C] [min] | -1 °C |
| Temperature range [°F] [max] | 50 °F |
| Temperature range [°F] [min] | 30 °F |
| Material | Stainless steel |
| Pressure rating | 45.5 bar (660 psig) max working pressure |
| Temperature range | -1 to 10 °C (evaporating) |
| Standard size | 3/8 in x 1/2 in |
| MOQ | 1 |
Rated for R410A. Select capacity to the bypass load and rating condition per the TU/TC data sheet before ordering.