Thermostatic expansion valves TUA/TUAE

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Technical brochure Thermostatic expansion valves, type TUA/TUAE Capacity (continued) Capacity in kW for range N = −40 → +10°C and opening superheat OS = 4 K Valve type TU TU TU Orifice no. 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Pressure drop across valve ∆p bar Pressure drop across valve ∆p bar R410A 3 6 9 12 15 18 21 24 3 6 9 12 15 18 21 24 0.56 0.89 1.45 1.98 3.1 4.1 6.2 8.2 12.1 18.3 0.53 0.76 1.04 1.44 2.2 2.9 4.3 5.8 8.6 12.9 0.72 1.13 1.90 2.6 4.1 5.3 8.1 10.7 15.8 24.0 0.67 0.96 1.35 1.86 2.8 3.7 5.6 7.5 11.2 16.8 0.52 0.66 0.81 1.13 1.67 2.2 3.3 4.5 6.7 9.9 Evaporating temperature +10°C Evaporating temperature 0°C 0.80 1.26 2.2 3.0 4.6 6.1 9.2 12.7 18.0 27.2 0.85 1.30 2.3 3.2 4.9 6.5 9.9 13.1 19.3 29.1 0.87 1.37 2.4 3.3 5.1 6.7 10.3 13.6 20.0 30.2 0.88 1.38 2.5 3.3 5.2 6.8 10.5 13.8 20.3 30.6 Evaporating temperature –10°C 0.74 1.07 1.52 2.1 3.2 4.2 6.4 8.5 12.7 19.0 0.78 1.13 1.63 2.3 3.4 4.5 6.8 9.1 13.6 20.3 0.80 1.16 1.69 2.3 3.5 4.7 7.1 9.4 14.1 21.0 0.81 1.17 1.72 2.4 3.6 4.8 7.2 9.6 14.3 21.3 Evaporating temperature –30°C 0.58 0.74 0.90 1.27 1.87 2.5 3.7 5.0 7.6 11.1 0.61 0.79 0.96 1.35 2.0 2.7 4.0 5.4 8.0 11.8 0.63 0.82 1.00 1.40 2.1 2.8 4.1 5.5 8.3 12.2 0.63 0.82 1.01 1.41 2.1 2.8 4.2 5.6 8.4 12.4 0.87 1.36 2.4 3.3 5.1 6.8 10.4 13.8 20.2 30.5 0.81 1.17 1.72 2.4 3.6 4.8 7.2 9.6 14.3 21.3 0.63 0.82 1.01 1.41 2.1 2.8 4.2 5.6 8.4 12.4 0.85 1.33 2.4 3.3 5.0 6.7 10.2 13.5 19.9 29.9 0.79 1.15 1.70 2.4 3.5 4.8 7.1 9.5 14.1 21.0 0.62 0.81 1.00 1.40 2.1 2.8 4.1 5.5 8.3 12.2 0.56 0.84 1.25 1.72 2.6 3.5 5.3 7.0 10.4 15.7 0.70 1.06 1.64 2.3 3.5 4.6 6.9 9.2 13.7 20.5 0.60 0.83 1.06 1.48 2.2 3.0 4.4 5.9 8.9 13.2 0.78 1.18 1.86 2.6 3.9 5.2 7.9 10.4 15.5 23.3 0.83 1.24 1.99 2.7 4.2 5.6 8.4 11.1 16.6 24.9 0.85 1.29 2.1 2.9 4.3 5.8 8.7 11.6 17.2 25.8 0.86 1.30 2.1 2.9 4.4 5.9 8.9 11.8 17.5 26.2 Evaporating temperature –20°C 0.67 0.92 1.20 1.67 2.5 3.3 5.0 6.6 10.0 14.8 0.70 0.97 1.28 1.78 2.7 3.5 5.3 7.1 10.7 15.8 0.72 1.00 1.32 1.84 2.7 3.7 5.5 7.4 11.0 16.4 0.73 1.01 1.34 1.87 2.8 3.7 5.6 7.5 11.2 16.6 Evaporating temperature –40°C 0.48 0.56 0.66 0.93 1.36 1.82 2.7 3.6 5.5 8.1 0.50 0.59 0.70 0.98 1.45 1.9 2.9 3.9 5.8 8.6 0.52 0.61 0.72 1.02 1.49 2.0 3.0 4.0 6.0 8.8 0.52 0.62 0.73 1.03 1.51 2.0 3.0 4.0 6.1 8.9 0.85 1.29 2.1 2.9 4.4 5.8 8.9 11.8 17.5 26.2 0.73 1.00 1.34 1.87 2.8 3.7 5.6 7.5 11.2 16.6 0.52 0.62 0.73 1.03 1.50 2.0 3.0 4.0 6.1 8.9 0.84 1.27 2.1 2.9 4.3 5.8 8.8 11.6 17.2 25.7 0.72 0.99 1.33 1.85 2.8 3.7 5.5 7.4 11.1 16.4 0.51 0.61 0.72 1.01 1.48 2.0 3.0 4.0 6.0 8.8 Correction for subcooling ∆t sub 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. Note: Insufficient subcooling can produce flash gas. Correction factor for subcooling ∆t sub ∆t sub 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 14 DKRCC.PD.AG0.A3.02 / 520H4543 © Danfoss A/S (AG-SMC / bpv), 07 - 2010
Technical brochure Thermostatic expansion valves, type TUA/TUAE Design/Function 1. Bulb with capillary tube 2. Thermostatic element with diaphragm 3. Setting spindle for adjustment of static superheat SS 4. Orifice assembly 5. Filter Fig. 4 Fig. 5 Superheat Superheat See fig. 5 SS = static superheat OS = opening superheat SH = SS + OS = total superheat Q nom = rated capacity Q max = 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 Q nom. . Example Static superheat Opening superheat Total superheat SS = 5 K OS = 4 K SH = 5 + 4 = 9 K Dimensions and weight Connection dimensions, see ordering table Fig. 6 Straightway Weight 0.16 kg © Danfoss A/S (AG-SMC / bpv), 07 - 2010 DKRCC.PD.AG0.A3.02 / 520H4543 15
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