www.danfoss.com MAKING MODERN LIVING POSSIBLE Technical brochure Thermostatic expansion valves TUA/TUAE
www.danfoss.com
MAKING MODERN LIVING POSSIBLE
Technical brochure
Thermostatic expansion valvesTUA/TUAE
Technical brochure Thermostatic expansion valves, type TUA/TUAE
2 DKRCC.PD.AG0.A3.02 / 520H4543 Danfoss A/S (AG-SMC / bpv), 07 - 2010
Contents Page
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Standard range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
MOP valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Capacity
R22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
R134A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
R404A/ R507. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
R407C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
R410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Design/Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Dimensions and weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Technical brochure Thermostatic expansion valves, type TUA/TUAE
Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 3
Introduction TUA/TUAE valves are made of stainless steel and are therefore very suitable for refrigeration systems in the food industry.
TUA/TUAE valves are available with interchangeable orifice assembly in straightway versions.
TUA/TUAE has been specially developed for soldering into hermetic refrigeration systems.
TUA/TUAE valves can be used in many different forms of refrigeration systems, for example:
Traditional refrigeration systems
Heat pump systems
Air conditioning units
Refrigeration appliances
Liquid coolers
Ice cube machines
Mobile refrigeration systems
Features Laser-welded, stainless steel thermostatic diaphragm element - optimum function - long diaphragm life - high pressure resistance
Stainless steel bulb - simple and fast installation - good heat transfer from pipe to bulb
Adjustable superheat - accurate setting - adjustable in operation
Available with MOP (Max. Operating Pressure)
Wide range of valves
Interchangeable filter for easy cleaning
Bleed orifices available on special request
Interchangeable orifice assembly designed for: - Easy mounting - Optimized tightness
Bimetal connections - Simple, fast soldering without the need for wet cloth or refrigeration pliers.
Refrigerants R22, R134a, R404A, R407C, R507, R410A and future refrigerants
Capacities from 0.6 to 16 kW (0.17 to 4.5 TR) for R22 - Large capacity range in small steps
Stable regulation
Biflow function (orifice 1 to 8)
Compact design - small dimensions and low weight
Stainless steel, solder version - high connection strength and tightness - capillary tube joints of high strength and vibration resistance
The standard range can be supplied in the following versions:Range N –40 to +10°C, without MOPRange N −40 to +10°C, MOP +15°CRange NM −40 to − 5°C, MOP 0°CRange B −60 to −25°C, without MOPRange B −60 to −25°C, MOP −20°CValves for special temperature ranges can be supplied.
Static superheat (SS) (R22, R134a, R404A, R407C and R410A):Valves without MOP 5 KValves with MOP 4 K
Standard range Static superheat (SS) (R507):Valves without MOP 6.4 KValves with MOP 5.4 K
Capillary tube length 1.5 m
Connections:Inlet 1/4 in./6 mm 3/8 in./10 mmOutlet 1/2 in./12 m
R22 pe = 100 psig/6.9 bar pe = 60 psig/4.0 bar pe = 20 psig/1.5 bar
R134a pe = 55 psig/3.9 bar pe = 30 psig/1.9 bar
R404A/R507 pe = 120 psig/8.4 bar pe = 75 psig/5.0 bar pe = 30 psig/2.0 bar
R407C pe = 95 psig/6.6 bar pe = 50 psig/3.6bar pe = 20 psig/1.4 bar
R410A pe = 165 psig/11.5 bar pe = 100 psig/7.0 bar pe = 45 psig/3.0 bar
Technical brochure Thermostatic expansion valves, type TUA/TUAE
4 DKRCC.PD.AG0.A3.02 / 520H4543 Danfoss A/S (AG-SMC / bpv), 07 - 2010
Fig. 1 Power element
Fig. 2 Valve body
Refrigerant
Range N−40 → +10°C
Range NM−40 → −5°C
Range B−60 → −25°C
MOP point for evaporating temperature te and evaporating pressure pe1)
te = +15°C/+60°F te = 0°C/+32°F te = −20°C/−4°F
MOP-points
When MOP valves are used, to avoid charge migration the bulb temperature must always be lower than the thermostatic element temperature.
MOP valves
Max. bulb temperature 100°C
Max. valve body temp. 120°C, short-lived peak 150°C
Permissible working pressure(excl. R410A) PS = 34 barMax. test pressure (excl. R410A) p’ = 37.5 bar
Max. working pressure, R410A PS = 42.5 barMax. test pressure, R410A p’ = 47 bar
Biflow driftWith flow in the opposite direction, the rated capacity is reduced by up to 15%.TUAE with orifice 0 and 9, all TUA and valves with MOP charges cannot be used for biflow operation.
Technical data
Main valve data is given on the element (fig. 1), on the valve body (fig. 2) and on the bottom of the orifice assembly (fig. 3).
Example valve bodyTUAE = Type (E = external pressure equalisation)068U2214 = Code numberR134a = RefrigerantMOP 55 / +15°C = MOP-point in psig / °C−40 / +10°C = Evaporating temperature range in °C−40 / +50°F = Evaporating temperature range in °FPS 34 bar/ MWP 500 psig = Max. working pressure in bar/psig1004B = Date marking (week 10, year 2004, weekday B = Tuesday)⇒ = Normal flow directionin. = Connection in inches (mm = millimetres)
Example orifice assemblyTU = Valve type5 = Orifice number068U1035 = Code no., orifice assembly incl. filter and gasket1004 = Date marking (Week 10, Year 2004)
Identification
1) pe in bar gauge
R22, R134a, R404A, R407C, R507, R410A
R22/R407C1)
TUATUATUATUA
Int.Int.Int.Int.
1.51.51.51.5
1/4 x 1/2
3/8 x 1/2
6 x 12
10 x 12
068U2234068U2230068U2235068U2231
068U2242068U2238068U2243068U2239
TUAETUAETUAETUAE
Ext. 1/4 in.Ext. 6 mmExt. 1/4 in.Ext. 6 mm
1.51.51.51.5
1/4 x 1/2
3/8 x 1/2
6 x 12
10 x 12
068U2236068U2232068U2237068U2233
068U2244068U2240068U2245068U2241
R134a
TUATUATUATUA
Int.Int.Int.Int.
1.51.51.51.5
1/4 x 1/2
3/8 x 1/2
6 x 12
10 x 12
068U2204068U2200068U2205068U2201
068U2212068U2208068U2213068U2209
TUAETUAETUAETUAE
Ext. 1/4 in.Ext. 6 mmExt. 1/4 in.Ext. 6 mm
1.51.51.51.5
1/4 x 1/2
3/8 x 1/2
6 x 12
10 x12
068U2206068U2202068U2207068U2203
068U2214068U2210068U2215068U2211
R404A1)
R507
TUATUATUATUA
Int.Int.Int.Int.
1.51.51.51.5
1/4 x 1/2
3/8 x 1/2
6 x 12
10 x 12
068U2284068U2280068U2285068U2281
068U2292068U2288068U2293068U2289
068U2300068U2296068U2301068U2297
068U2308068U2304068U2309068U2305
068U2316068U2312068U2317068U2313
TUAETUAETUAETUAE
Ext. 1/4 in.Ext. 6 mmExt. 1/4 in.Ext. 6 mm
1.51.51.51.5
1/4 x 1/2
3/8 x 1/2
6 x 12
10 x 12
068U2286068U2282068U2287068U2283
068U2294068U2290068U2295068U2291
068U2302068U2298068U2303068U2299
068U2310068U2306068U2311068U2307
068U2318068U2314068U2319068U2315
R407C
TUATUATUATUA
Int.Int.Int.Int.
1.51.51.51.5
1/4 x 1/2
3/8 x 1/2
6 x 12
10 x 12
068U2324068U2320068U2325068U2321
068U2332068U2328068U2333068U2329
TUAETUAETUAETUAE
Ext. 1/4 in.Ext. 6 mmExt. 1/4 in.Ext. 6 mm
1.51.51.51.5
1/4 x 1/2
3/8 x 1/2
6 x 12
10 x 12
068U2326068U2322068U2327068U2323
068U2334068U2330068U2335068U2331
R410ATUA Int. 1.5 3/8 x 1/2 068U2414
TUAETUAE
Ext. 1/4 in.Ext. 6 mm
1.51.5
3/8 x 1/2
10 x 12068U1714068U2780
Technical brochure Thermostatic expansion valves, type TUA/TUAE
Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 5
Ordering, components with solder x solder connections
Thermostatic element, without orificeand filter, with bulb strap
RefrigerantValve type
Pressure equalization1)
Capillary tubeConnections Code no.
Inlet x outletRange N
–40 → +10°CRange NM
–40 → –5°CRange B
–60→ –25°C
m in. mm Without MOP MOP +15 °C MOP 0 °C Without MOP MOP –20°C
1) For R407C plants, please select valves from the dedicated R407C program
0 0.60 0.47 0.47 0.63 0.45 - 0.17 0.13 0.13 0.18 0.13 - 068U1030
1 0.9 0.7 0.70 0.92 0.66 1.3 0.25 0.19 0.19 0.26 0.19 0.4 068U1031
2 1.3 1.0 1.0 1.4 1.0 2.1 0.36 0.28 0.28 0.38 0.27 0.6 068U1032
3 1.8 1.4 1.4 1.9 1.3 2.9 0.50 0.39 0.39 0.53 0.38 0.8 068U1033
4 2.6 2.1 2.1 2.8 2.0 4.5 0.75 0.59 0.60 0.80 0.57 1.3 068U1034
5 3.5 2.7 2.8 3.8 2.7 5.9 1.00 0.78 0.79 1.1 0.76 1.7 068U1035
6 5.3 4.1 4.2 5.7 4.0 9.0 1.5 1.2 1.2 1.6 1.1 2.5 068U1036
7 7.0 5.5 5.6 7.5 5.3 12.0 2.0 1.6 1.6 2.1 1.5 3.4 068U1037
8 11.0 8.2 8.4 11.0 8.0 18.0 3.0 2.3 2.4 3.2 2.3 5.0 068U1038
9 16.0 12.0 12.0 17.0 12.0 26.0 4.5 3.5 3.5 4.8 3.4 7.5 068U1039
0 0.52 0.36 0.46 0.39 0.15 0.10 0.13 0.11 068U1030
1 0.68 0.50 0.58 0.53 0.19 0.14 0.16 0.15 068U1031
2 0.85 0.64 0.70 0.70 0.24 0.18 0.20 0.20 068U1032
3 1.2 0.89 1.0 1.0 0.34 0.25 0.28 0.28 068U1033
4 1.8 1.3 1.4 1.4 0.50 0.37 0.41 0.41 068U1034
5 2.3 1.8 1.9 1.9 0.66 0.50 0.55 0.55 068U1035
6 3.5 2.7 2.9 2.9 1.0 0.75 0.82 0.82 068U1036
7 4.7 3.5 3.9 3.9 1.3 1.0 1.1 1.1 068U1037
8 7.1 5.3 5.8 5.8 2.0 1.5 1.6 1.7 068U1038
9 10.4 7.8 8.5 8.6 2.9 2.2 2.4 2.4 068U1039
Technical brochure Thermostatic expansion valves, type TUA/TUAE
6 DKRCC.PD.AG0.A3.02 / 520H4543 Danfoss A/S (AG-SMC / bpv), 07 - 2010
1) Rated capacity Qnom. is based on: Evaporating temperature te = +5°C for range N and – 30°C for range B Condensing temperature tc = +32°C Refrigerant liquid temperature tl = +28°C Opening superheat OS = 4 K
Ordering (continued)
Spare partsGasket (24 pcs.): 068U0015Note: to ensure tightness the orifice gasket must be exchanged each time the orifice assembly is unscrewed.Filter (24 pcs.): 068U0016
Range B: –60 → –25°C
Orifice assembly with filter and gasket. Range N: –40 → +10°C
Orifice no.
Rated capacity in kW1) Rated capacity in tons (TR)1)
Code no.R22 R134a R404A R407C R507 R410A R22 R134a R404A R407C R507 R410A
Orifice no.
Rated capacity in kW1) Rated capacity in tons (TR)1)
Code no.R22 R404A R407C R507 R22 R404A R407C R507
Technical brochure Thermostatic expansion valves, type TUA/TUAE
Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 7
Capacity
Correction factor for subcooling ∆tsub
Note:Insufficient subcooling can produce flash gas.
Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
Since the expansion valve capacity must be equal to or slightly more than the corrected evaporator capacity of 2.7 kW, a TUB/TUBE with orifice 5 and a table capacity of 2.8 kW would be a suitable choice.
Refrigerant = R22Evaporating temperature te = −10°CPressure drop in valve ∆p = 10 barSubcooling ∆tsub = 15 KEvaporator capacity = 3 kWCorrection value (table) = 1.11The corrected evaporator capacity thus becomes 3 divided by 1.11 = 2.7 kW
Selection example
R22Capacity in kW for range N = −40 → +10°C and opening superheat OS = 4 K
Valve typeOrifice
no.Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature +10°C Evaporating temperature 0°C
TU
0123456789
0.420.610.91.21.82.43.74.97.3
10.9
0.530.791.21.62.43.24.96.59.6
14.5
0.600.891.31.82.83.75.67.5
11.216.7
0.651.01.52.03.14.16.18.2
12.218.2
0.681.01.62.13.24.36.58.6
12.919.3
0.701.01.62.23.44.56.79.0
13.420.0
0.711.11.72.33.54.66.99.2
13.720.5
0.721.11.72.33.54.77.19.4
13.920.9
0.400.550.731.01.52.03.14.16.19.1
0.500.711.01.32.02.74.05.48.0
12.1
0.560.801.11.52.33.14.66.29.2
13.8
0.600.861.21.72.53.45.06.7
10.115.0
0.630.911.31.82.73.55.37.1
10.615.9
0.650.931.31.82.83.75.57.4
11.016.4
0.670.951.41.92.83.85.77.6
11.316.8
0.670.961.41.92.83.85.87.7
11.517.1
Evaporating temperature –10°C Evaporating temperature –20°C
TU
0123456789
0.360.470.600.81.21.72.53.35.07.4
0.460.620.781.11.62.23.24.36.59.7
0.510.700.891.31.92.53.75.07.5
11.1
0.550.751.01.42.02.74.05.48.1
12.0
0.570.791.01.42.12.84.35.78.5
12.6
0.590.811.11.52.22.94.45.98.8
13.1
0.600.821.11.52.23.04.56.09.0
13.3
0.610.831.11.52.33.04.66.19.1
13.5
0.400.510.610.91.31.72.53.45.17.6
0.450.570.701.01.51.92.93.95.88.6
0.480.620.761.11.62.13.14.26.39.3
0.500.650.791.11.62.23.34.46.69.7
0.520.670.821.21.72.33.44.56.8
10.1
0.530.680.841.21.72.33.54.67.0
10.3
0.530.690.851.21.82.33.54.77.1
10.4
Evaporating temperature –30°C Evaporating temperature –40°C
TU
0123456789
0.340.390.470.661.01.31.92.63.95.7
0.380.450.530.741.11.52.22.94.46.5
0.400.480.570.801.21.62.43.24.87.0
0.420.510.600.841.21.72.53.35.07.3
0.440.520.620.871.31.72.53.45.17.5
0.440.530.630.881.31.72.63.55.27.7
0.450.540.630.891.31.82.63.55.37.7
0.310.330.390.550.801.11.62.13.24.7
0.330.360.420.590.861.21.72.33.55.1
0.340.380.440.610.901.21.82.43.65.3
0.350.390.450.630.921.21.82.53.75.5
0.360.390.460.640.941.31.92.53.85.5
0.360.400.460.650.951.31.92.53.85.6
∆tsub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.06 1.11 1.15 1.2 1.25 1.3 1.35 1.39 1.44
Technical brochure Thermostatic expansion valves, type TUA/TUAE
8 DKRCC.PD.AG0.A3.02 / 520H4543 Danfoss A/S (AG-SMC / bpv), 07 - 2010
Capacity (continued)
Capacity in kW for range B = −60 → −25°C and opening superheat OS = 4 K R22Valve type
Orificeno.
Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature –25°C Evaporating temperature –30°C
TU
0123456789
0.360.480.610.851.31.72.53.45.17.6
0.450.620.791.101.62.23.34.46.69.7
0.500.690.891.251.92.53.75.07.5
11.0
0.540.740.961.342.02.74.05.48.0
11.9
0.560.771.011.412.12.84.25.68.4
12.4
0.580.791.041.452.12.94.35.88.7
12.8
0.590.811.061.482.22.94.45.98.9
13.1
0.590.811.071.502.23.04.56.08.9
13.2
0.330.420.520.731.11.42.12.94.36.4
0.420.540.670.931.41.92.83.75.68.2
0.460.610.751.11.62.13.14.26.39.3
0.490.660.811.11.72.23.44.56.8
10.0
0.520.680.851.21.82.43.54.77.1
10.4
0.530.700.881.21.82.43.64.97.3
10.7
0.540.710.891.31.82.53.74.97.4
10.9
0.540.720.901.31.92.53.75.07.5
11.0
Evaporating temperature –40°C Evaporating temperature –50°C
TU
0123456789
0.270.310.360.510.751.01.52.03.04.5
0.340.390.460.650.961.31.92.63.95.7
0.370.440.520.731.11.42.22.94.46.4
0.400.470.560.791.21.62.33.14.76.8
0.420.500.590.821.21.62.43.24.97.1
0.430.510.600.851.21.72.53.35.07.3
0.430.520.610.861.31.72.53.45.17.5
0.440.520.620.871.31.72.63.45.27.5
0.200.210.250.350.510.681.01.42.13.0
0.250.270.310.440.650.871.31.72.63.8
0.280.300.350.500.720.971.41.92.94.3
0.300.320.380.530.771.01.52.13.14.6
0.310.340.390.550.811.11.62.23.34.8
0.320.350.400.570.831.11.72.23.44.9
0.330.350.410.580.841.11.72.33.45.0
0.330.350.410.580.851.11.72.33.45.0
Evaporating temperature –60°C
TU
0123456789
0.140.140.160.230.340.450.670.911.42.0
0.170.180.210.290.430.570.851.11.72.5
0.190.200.230.330.480.640.951.31.92.8
0.210.220.250.350.510.681.011.42.13.0
0.210.220.260.360.530.711.051.42.13.1
0.220.230.260.370.540.731.081.52.23.2
0.220.230.270.380.550.741.091.52.23.2
0.220.230.270.380.550.741.101.52.23.2
Correction factor for subcooling ∆tsub
Note:Insufficient subcooling can produce flash gas.
Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
∆tsub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.06 1.11 1.15 1.2 1.25 1.3 1.35 1.39 1.44
Technical brochure Thermostatic expansion valves, type TUA/TUAE
Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 9
Capacity (continued)
Correction factor for subcooling ∆tsub
Note:Insufficient subcooling can produce flash gas.
Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
∆tsub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.08 1.13 1.19 1.25 1.31 1.37 1.42 1.48 1.54
Capacity in kW for range N = −40 → +10°C and opening superheat OS = 4 K R134aValve type
Orificeno.
Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature +10°C Evaporating temperature 0°C
TU
0123456789
0.380.570.821.11.72.33.44.66.8
10.2
0.460.691.11.42.22.94.45.98.7
13.1
0.500.761.21.62.53.34.96.69.8
14.6
0.530.791.21.72.63.55.27.0
10.315.5
0.540.811.31.82.73.65.47.2
10.615.9
0.540.811.31.82.73.65.57.2
10.816.0
0.350.500.660.921.41.82.83.75.58.3
0.420.610.841.21.82.33.54.77.0
10.4
0.460.660.931.31.92.63.95.27.8
11.5
0.480.690.981.42.02.74.15.58.2
12.2
0.490.701.01.42.12.84.25.68.4
12.4
0.490.711.01.42.12.84.35.78.5
12.5
Evaporating temperature –10°C Evaporating temperature –20°C
TU
0123456789
0.310.410.510.711.11.42.12.84.36.3
0.370.510.640.891.31.82.73.55.37.9
0.400.550.700.981.52.02.93.95.98.7
0.420.580.741.01.52.13.14.16.29.1
0.430.580.751.11.62.13.14.26.39.3
0.430.580.761.11.62.13.24.26.39.3
0.310.390.470.650.961.31.92.63.95.7
0.340.430.510.721.051.42.12.84.36.2
0.350.440.530.751.101.52.23.04.46.5
0.350.450.540.761.121.52.23.04.56.6
0.350.450.540.761.11.52.23.04.56.6
Evaporating temperature –30°C Evaporating temperature –40°C
TU
0123456789
0.250.280.320.460.670.901.31.82.74.0
0.270.300.350.500.730.981.52.03.04.3
0.280.320.370.520.761.021.52.03.14.5
0.280.320.370.530.771.031.52.13.14.5
0.280.320.370.520.761.01.52.13.14.5
0.180.190.220.310.450.610.901.21.82.7
0.190.210.240.340.490.660.971.32.02.9
0.200.210.250.350.500.681.01.42.13.0
0.200.210.250.350.510.681.01.42.13.0
0.200.210.250.350.510.681.01.42.13.0
Technical brochure Thermostatic expansion valves, type TUA/TUAE
10 DKRCC.PD.AG0.A3.02 / 520H4543 Danfoss A/S (AG-SMC / bpv), 07 - 2010
Capacity (continued)
Correction factor for subcooling ∆tsub
Note:Insufficient subcooling can produce flash gas.
Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
∆tsub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.1 1.2 1.29 1.37 1.46 1.54 1.63 1.7 1.78
Capacity in kW for range N = −40 → +10°C and opening superheat OS = 4 K R404A/R507Valve type
Orificeno.
Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature +10°C Evaporating temperature 0°C
TU
0123456789
0.320.470.700.961.52.02.93.95.88.8
0.400.600.911.21.92.53.85.17.5
11.3
0.440.681.01.42.12.84.35.78.4
12.7
0.460.691.11.52.33.04.56.09.0
13.5
0.460.701.11.52.33.14.76.29.2
13.8
0.460.701.11.52.33.14.76.29.2
13.9
0.450.681.11.52.33.14.66.19.1
13.7
0.440.661.11.52.23.04.56.08.9
13.39
0.310.440.600.831.31.72.53.45.07.5
0.390.560.771.11.62.23.24.36.59.6
0.420.610.871.21.82.43.64.87.2
10.8
0.440.640.921.31.92.63.85.17.6
11.4
0.440.640.941.32.02.63.95.27.8
11.7
0.440.640.941.52.02.63.95.37.8
11.7
0.430.630.931.31.92.63.95.27.7
11.5
0.420.610.901.31.92.53.85.07.5
11.2
Evaporating temperature –10°C Evaporating temperature –20°C
TU
0123456789
0.290.390.500.701.01.42.12.84.26.2
0.360.500.640.891.31.82.73.65.37.9
0.390.540.710.991.52.03.04.05.98.8
0.400.570.751.01.62.13.14.26.39.3
0.410.570.761.11.62.13.24.36.49.5
0.410.570.761.11.62.13.24.36.49.5
0.400.560.751.11.62.13.14.26.39.3
0.390.540.731.01.52.03.14.16.19.0
0.320.410.510.711.11.42.12.84.36.3
0.350.460.560.791.21.62.33.14.76.9
0.360.480.590.831.21.62.43.34.97.3
0.360.480.600.841.21.72.53.35.07.4
0.360.480.600.841.21.72.53.35.07.4
0.350.470.590.821.21.62.43.34.97.2
0.340.450.570.801.21.62.43.24.87.0
Evaporating temperature –30°C Evaporating temperature –40°C
TU
0123456789
0.30.360.430.600.891.21.82.43.65.3
0.310.380.450.630.931.21.92.53.75.5
0.310.380.450.640.941.31.92.53.85.5
0.310.380.450.630.931.21.92.53.85.5
0.30.370.440.620.911.21.82.43.75.4
0.290.360.430.600.881.21.82.43.65.2
0.240.270.320.450.650.881.31.82.63.9
0.250.280.330.460.680.911.41.82.74.0
0.250.280.330.470.680.911.41.82.84.0
0.250.280.330.460.670.901.31.82.74.0
0.240.270.320.450.660.881.31.82.73.9
0.230.260.310.430.630.851.31.72.63.7
Technical brochure Thermostatic expansion valves, type TUA/TUAE
Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 11
Capacity (continued)
Correction factor for subcooling ∆tsub
Note:Insufficient subcooling can produce flash gas.
Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
Capacity in kW for range B = −60 → −25°C and opening superheat OS = 4 K R404A/R507Valve type
Orificeno.
Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature –25°C Evaporating temperature –30°C
TU
0123456789
0.300.410.530.741.11.52.22.94.46.5
0.360.510.660.921.41.82.83.75.58.2
0.390.550.731.011.52.03.04.16.19.0
0.400.560.761.061.62.13.24.26.39.4
0.400.570.771.071.62.13.24.36.49.5
0.400.560.771.071.62.13.24.36.49.4
0.390.550.751.041.62.13.14.26.39.2
0.380.530.731.011.52.03.04.06.18.9
0.280.360.450.641.01.31.92.53.85.6
0.330.450.570.791.21.62.43.24.77.0
0.360.490.620.871.31.72.63.55.27.7
0.370.510.650.911.31.82.73.65.48.0
0.370.510.650.911.41.82.73.65.58.1
0.370.500.650.911.31.82.73.65.48.0
0.360.480.640.891.31.82.63.55.37.8
0.350.470.610.861.31.72.63.45.17.5
Evaporating temperature –40°C Evaporating temperature –50°C
TU
0123456789
0.280.340.400.570.831.11.72.23.44.9
0.300.370.440.620.911.21.82.43.75.4
0.300.380.450.640.941.31.92.53.85.6
0.310.380.460.640.941.31.92.53.85.6
0.300.380.450.630.931.31.92.53.85.5
0.290.370.440.620.911.21.82.43.75.4
0.280.350.420.590.871.21.82.43.55.2
0.220.240.270.390.570.761.11.52.33.3
0.230.250.300.420.610.821.21.62.53.6
0.240.260.310.430.630.841.31.72.63.7
0.240.260.310.430.630.841.31.72.63.7
0.230.260.300.420.620.831.21.72.53.7
0.220.250.290.410.600.811.21.62.43.5
0.210.240.280.390.570.771.21.52.33.4
Evaporating temperature –60°C
TU
0123456789
0.160.170.190.270.400.530.791.11.62.3
0.160.170.200.280.410.550.811.11.72.4
0.160.170.200.280.410.550.811.11.72.4
0.160.170.190.270.400.530.791.11.62.3
0.150.160.190.260.380.510.761.01.62.3
0.150.150.180.250.360.490.731.01.52.1
∆tsub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.1 1.2 1.29 1.37 1.46 1.54 1.63 1.7 1.78
Technical brochure Thermostatic expansion valves, type TUA/TUAE
12 DKRCC.PD.AG0.A3.02 / 520H4543 Danfoss A/S (AG-SMC / bpv), 07 - 2010
Capacity (continued)
Correction factor for subcooling ∆tsub
Note:Insufficient subcooling can produce flash gas.
Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
∆tsub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.08 1.14 1.21 1.27 1.33 1.39 1.45 1.51 1.57
Capacity in kW for range N = −40 → +10°C and opening superheat OS = 4 K R407CValve type
Orificeno.
Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature +10°C Evaporating temperature 0°C
TU
0123456789
0.430.630.901.21.92.53.85.07.5
11.3
0.540.811.21.62.53.35.06.69.9
14.8
0.600.901.41.92.83.85.77.6
11.216.9
0.640.961.52.03.14.16.18.2
12.218.2
0.670.991.52.13.24.26.48.6
12.719.0
0.681.011.62.23.34.46.68.8
13.019.5
0.681.021.62.23.34.46.78.9
13.219.7
0.681.011.62.23.34.46.78.9
13.219.7
0.410.560.81.01.62.13.14.26.39.3
0.510.731.01.42.12.74.15.48.2
12.2
0.560.811.11.52.33.14.66.29.3
13.8
0.600.861.21.72.53.35.06.79.9
14.8
0.620.891.21.72.63.55.26.9
10.415.4
0.630.901.31.82.73.55.37.1
10.615.8
0.630.911.31.82.73.65.47.2
10.715.9
0.630.901.31.82.73.65.47.2
10.715.9
Evaporating temperature –10°C Evaporating temperature –20°C
TU
0123456789
0.370.480.600.841.31.72.53.45.07.5
0.460.620.781.11.62.23.24.36.59.6
0.510.700.881.21.82.43.74.97.4
10.9
0.540.740.941.32.02.63.95.27.9
11.6
0.550.760.981.42.02.74.15.58.2
12.1
0.560.771.001.42.12.84.25.68.4
12.3
0.570.771.011.42.12.84.25.68.4
12.4
0.560.771.011.42.12.84.25.68.4
12.4
0.330.390.470.660.981.31.92.63.95.8
0.400.500.600.841.31.72.53.35.07.4
0.440.560.680.951.41.92.83.75.78.3
0.470.600.721.01.52.03.04.06.08.9
0.480.620.751.11.62.13.14.16.29.2
0.490.630.761.11.62.13.24.26.49.3
0.490.630.771.11.62.13.24.26.49.4
0.490.630.761.11.62.13.24.26.49.3
Evaporating temperature –30°C Evaporating temperature –40°C
TU
0123456789
0.260.380.450.630.931.31.92.53.85.5
0.290.430.500.711.01.42.12.84.26.2
0.310.450.530.751.11.52.23.04.56.5
0.320.470.550.781.11.52.33.14.66.7
0.320.480.560.791.21.62.33.14.76.8
0.320.480.560.791.21.62.33.14.76.9
0.310.470.560.791.21.52.33.14.76.8
0.290.310.360.510.751.01.52.03.04.4
0.310.330.380.540.791.11.62.13.24.7
0.320.340.400.560.811.11.62.23.34.8
0.320.340.400.560.821.11.62.23.34.9
0.320.350.400.560.821.11.62.23.34.9
0.310.340.400.560.821.11.62.23.34.8
Technical brochure Thermostatic expansion valves, type TUA/TUAE
Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 13
Capacity (continued)
Correction factor for subcooling ∆tsub
Note:Insufficient subcooling can produce flash gas.
Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
∆tsub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.08 1.14 1.21 1.27 1.33 1.39 1.45 1.51 1.57
Capacity in kW for range B = −60 → −25°C and opening superheat OS = 4 K R407CValve type
Orificeno.
Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature –25°C Evaporating temperature –30°C
TU
0123456789
0.340.430.520.731.11.52.22.94.46.5
0.420.540.670.931.41.82.83.75.68.2
0.460.610.751.01.52.13.14.16.29.2
0.490.650.791.11.62.23.34.46.69.7
0.500.660.821.21.72.33.44.56.8
10.1
0.510.670.831.21.72.33.54.67.0
10.2
0.510.670.841.21.72.33.54.67.0
10.3
0.500.670.831.21.72.33.54.66.9
10.2
0.310.370.450.620.921.21.82.53.75.5
0.380.470.560.791.21.62.33.14.76.9
0.420.520.630.881.31.72.63.55.37.7
0.440.560.670.941.41.82.83.75.68.2
0.450.570.690.971.41.92.93.85.88.4
0.460.580.700.981.41.92.93.95.88.6
0.460.590.700.981.51.92.93.95.98.6
0.460.580.700.981.41.92.93.95.88.5
Evaporating temperature –40°C Evaporating temperature –50°C
TU
0123456789
0.240.270.310.440.650.861.31.72.63.8
0.300.340.390.550.811.11.62.23.34.8
0.330.370.440.610.901.21.82.43.65.3
0.350.390.460.650.951.31.92.53.95.6
0.360.410.470.670.981.32.02.64.05.8
0.360.410.480.680.991.32.02.74.05.8
0.360.410.480.680.991.32.02.74.05.8
0.360.410.480.670.981.32.02.64.05.8
0.170.180.210.300.440.590.871.21.82.6
0.220.230.270.370.550.731.11.52.23.2
0.240.250.290.410.600.811.21.62.43.5
0.250.270.310.440.630.851.31.72.63.7
0.260.270.320.450.650.881.31.72.63.8
0.260.280.320.450.660.881.31.82.73.9
0.260.280.320.450.660.881.31.82.73.9
0.260.270.320.450.650.871.31.72.63.8
Evaporating temperature –60°C
TU
0123456789
0.120.120.140.200.290.390.580.781.21.7
0.150.150.170.250.360.480.710.961.52.1
0.160.170.190.270.390.530.791.11.62.3
0.180.180.200.290.410.560.831.11.72.4
0.170.180.210.290.420.570.851.11.72.5
0.170.180.210.290.430.570.851.11.72.5
0.170.180.210.290.420.570.851.11.72.5
0.170.180.200.290.420.560.831.11.72.5
Technical brochure Thermostatic expansion valves, type TUA/TUAE
14 DKRCC.PD.AG0.A3.02 / 520H4543 Danfoss A/S (AG-SMC / bpv), 07 - 2010
Correction factor for subcooling ∆tsub
Note:Insufficient subcooling can produce flash gas.
Correction for subcooling ∆tsub
The evaporator capacity used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
∆tsub 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
Correction factor 1.00 1.08 1.15 1.21 1.27 1.33 1.39 1.45 1.50 1.56
Capacity (continued)
Capacity in kW for range N = −40 → +10°C and opening superheat OS = 4 K R410AValve type
Orificeno.
Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar
3 6 9 12 15 18 21 24 3 6 9 12 15 18 21 24
Evaporating temperature +10°C Evaporating temperature 0°C
TU
0123456789
0.560.891.451.983.14.16.28.2
12.118.3
0.721.131.902.64.15.38.1
10.715.824.0
0.801.262.23.04.66.19.2
12.718.027.2
0.851.302.33.24.96.59.9
13.119.329.1
0.871.372.43.35.16.7
10.313.620.030.2
0.881.382.53.35.26.8
10.513.820.330.6
0.871.362.43.35.16.8
10.413.820.230.5
0.851.332.43.35.06.7
10.213.519.929.9
0.560.841.251.722.63.55.37.0
10.415.7
0.701.061.642.33.54.66.99.2
13.720.5
0.781.181.862.63.95.27.9
10.415.523.3
0.831.241.992.74.25.68.4
11.116.624.9
0.851.292.12.94.35.88.7
11.617.225.8
0.861.302.12.94.45.98.9
11.817.526.2
0.851.292.12.94.45.88.9
11.817.526.2
0.841.272.12.94.35.88.8
11.617.225.7
Evaporating temperature –10°C Evaporating temperature –20°C
TU
0123456789
0.530.761.041.442.22.94.35.88.6
12.9
0.670.961.351.862.83.75.67.5
11.216.8
0.741.071.522.13.24.26.48.5
12.719.0
0.781.131.632.33.44.56.89.1
13.620.3
0.801.161.692.33.54.77.19.4
14.121.0
0.811.171.722.43.64.87.29.6
14.321.3
0.811.171.722.43.64.87.29.6
14.321.3
0.791.151.702.43.54.87.19.5
14.121.0
0.600.831.061.482.23.04.45.98.9
13.2
0.670.921.201.672.53.35.06.6
10.014.8
0.700.971.281.782.73.55.37.1
10.715.8
0.721.001.321.842.73.75.57.4
11.016.4
0.731.011.341.872.83.75.67.5
11.216.6
0.731.001.341.872.83.75.67.5
11.216.6
0.720.991.331.852.83.75.57.4
11.116.4
Evaporating temperature –30°C Evaporating temperature –40°C
TU
0123456789
0.520.660.811.131.672.23.34.56.79.9
0.580.740.901.271.872.53.75.07.6
11.1
0.610.790.961.352.02.74.05.48.0
11.8
0.630.821.001.402.12.84.15.58.3
12.2
0.630.821.011.412.12.84.25.68.4
12.4
0.630.821.011.412.12.84.25.68.4
12.4
0.620.811.001.402.12.84.15.58.3
12.2
0.480.560.660.931.361.822.73.65.58.1
0.500.590.700.981.451.92.93.95.88.6
0.520.610.721.021.492.03.04.06.08.8
0.520.620.731.031.512.03.04.06.18.9
0.520.620.731.031.502.03.04.06.18.9
0.510.610.721.011.482.03.04.06.08.8
Technical brochure Thermostatic expansion valves, type TUA/TUAE
Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 15
Connection dimensions, see ordering tableFig. 6 Straightway
Weight0.16 kg
Dimensions and weight
Design/Function
1. Bulb with capillary tube2. Thermostatic element with diaphragm3. Setting spindle for adjustment of static superheat SS4. Orifice assembly5. Filter
Fig. 5 Superheat
SuperheatSee fig. 5SS = static superheatOS = opening superheatSH = SS + OS = total superheatQnom = rated capacityQmax = maximum capacity
Static superheat SS can be adjusted with setting spindle 3, see fig. 4.
The standard superheat setting SS is 5 K for valves without MOP and 4 K for valves with MOP (except R507).The opening superheat OS is 4 K from when opening begins to where the valve gives its rated capacity Qnom..
ExampleStatic superheat SS = 5 KOpening superheat OS = 4 KTotal superheat SH = 5 + 4 = 9 K
Fig. 4
Technical brochure Thermostatic expansion valves, type TUA/TUAE
16 DKRCC.PD.AG0.A3.02 / 520H4543 Danfoss A/S (AG-SMC / bpv), 07 - 2010