data sheet thermostatic expansion valves type...
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MAKING MODERN LIVING POSSIBLE
Data sheet
Thermostatic Expansion ValvesType TRE 80
Features Bimetal connections - Waterless soldering - Quicker installation times - Higher productivityRefrigerants: - R410A, R407C, R134a, R404A, R507 and other fluorinated refrigerantsLaser-welded power element: - Longer diaphragm life - High pressure tolerance and working pressureStainless steel power element, capillary tube and bulb - High corrosion resistance - High strength and vibration resistance - Fast installation: self-aligning bulb secures with one strap - Good thermal contact and transmission
Two-way balanced port / biflow function - Superheat unaffected by condensing pressure irrespective of flow direction - One valve for heat pump serviceStainless steel bulb - Straightforward and fast installation - Good thermal contact and transmissionAdjustable/non-adjustable version - Setting spindle assembly can be retrofitted to non-adjustable version
TRE thermostatic expansion valves have been designed and developed for soldering into air-conditioning and refrigeration systems. Their hermetic tight design meets environmental demands for today and the future.
The TRE design incorporates a hot-pressed brass body with the entire power element, including the capillary tube and bulb, fabricated from stainless steel. The offset inline bimetal solder connections are formed from rolled stainless steel and copper. The valve incorporates a 2-way balanced port orifice making it ideal for biflow operation.
External superheat adjustment is a standard feature on all TRE valves. For non-adjustable OEM versions, a setting assembly is available for field retrofit. A strainer is also available as an accessory for mounting in the inlet connection.TRE valves can be used for all fluorinated refrigerants, and are available for R410A, R134a, and R407C. Models for other refrigerants can be produced to order.
DKRCC.PD.AL0.A3.02 / 520H7180
2 DKRCC.PD.AL0.A3.02 / 520H7180 © Danfoss A/S (AC-DSL / SKT), 07 - 2012
Data sheet Thermostatic expansion valves, type TRE 80
Valve options In addition to the standard program, TRE valves are also available with the following options:
Refrigerants - Range - MOP:Contact Danfoss for information regarding different refrigerants and evaporator ranges.
Static superheat, adjustable:2 K → 6 K / 3.6 °F → 10.8 °F
Static superheat, fixed:2 K → 6 K / 3.6 °F → 10.8 °F
Technical data Maximum operating temperature- Thermostatic Element:
N charge 100 °C / 210 °F (R410A max. 70 °C / 155 °F) K charge 150 °C / 302 °F
- Valve body: 110 °C / 230 °F
Maximum working pressurePS/MWP = 42 bar / 610 psig
Maximum test pressurePf = 46.5 bar / 670 psig
MOP Function To avoid charge migration when MOP valves are used, the bulb temperature must be lower than the thermostatic element temperature.
Biflow operationTRE valves are designed for biflow operation. During flow in the reverse direction, the rated capacity is reduced by as much as 10%.
Capillary tube length:Type Capillary tube length
TRE 80 1.5 or 3.0 m 5 or 10 ft.
Connections:Type Inlet ODF solder Outlet ODF solder
TRE 8011/8 - 13/8 in. 11/8 - 13/8 - 15/8 in.28 - 35 mm 28 - 35 - 42 mm
Equalising connection 1/4 in. or 6 mm ODF on all types.Sizes in bold type are standard sizes.
MOP pointsRefrigerant Range K
–25 → +10 °C / –15 → +50 °F
MOP pointfor evaporating temperature te and evaporating pressure pe
1)te = +15 °C / +60 °F
R22 pe = 100 psig / 6.9 bar
R410A pe = 165 psig / 11.5 bar
R407C pe = 95 psig / 6.6 bar
R134a pe = 55 psig / 3.9 bar
R404A/R507 pe = 120 psig / 8.4 bar1) pe in bar gauge
Thermostatic charge for R410A, R22, R134A, and R407C:
N –40 → +10 °C without MOP –40 → +50 °F without MOP
K –25 → +10 °C MOP + 15 °C –15 → +50 °F MOP + 60 °F
Standard program Static superheat (SS):Valves without MOP: 5 K / 9 °FValves with MOP: 4 K / 7.2 °F
Capillary tube length: TRE 80 3.0 m/10 ft.
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 3
Data sheet Thermostatic expansion valves, type TRE 80
Design/Function
1. Bulb with capillary tube2. Thermostatic element3. Pressure pin seal4. Two-way balanced port5. Setting spindle for adjustment
of static superheat SS
Static superheat SS can be adjusted with the setting spindle (5), see fig. 2. The standard superheat setting (SS) is 4 K / 7.2 °F for valves with MOP and 5 K / 9.0 °F for valves without MOP. Valves can also be supplied with a fixed setting. For factory non-adjustable valves, an adjustment assembly is available as an optional accessory (6).
The two-way balanced port feature (4) ensures minimal superheat changes when differential pressure varies. This feature makes the valve ideal for biflow operation. The central pressure pin is fitted with a robust seal (3) that ensures maximum tightness for the life of the valve.
Fig. 3. SuperheatFig. 2. TRE
Terminology (fig.3)SS = Static superheatOS = Opening superheatSH = SS + OS = Total superheat
ExampleStatic superheat SS = 4 K (7.2 °F) (factory setting)
Opening superheat OS = 4 K (7.2 °F)The opening superheat is 4 K, i.e. from the point the valve begins to open up to nominal capacity. Opening superheat is determined by the design and cannot be changed.
Total superheat SH = SS + OSSH = 4 + 4 = 8 K (14.4 °F)Total superheat SH can be changed by changing SS (by using the setting spindle).
Important valve information is provided on the diaphragm element (fig. 1).
Main valve data example:TRE80 = Valve type80 TR = Rated capacity Qnom. in Tons of Refrigeration280 kW = Rated capacity Qnom. in kWR410A = Refrigerant–40/+10 °C = Evaporating temperature range (°C)–40/+50 °F = Evaporating temperature range (°F)067L3174 = Code numberMOP = Max. operating pressurePS 42 bar/MWP 610 psig = Max. working pressure in bar and psig
Refrigerant code: R22 = X R134a = N R407C = Z R410A = L R404A / R507 = S
Identification
Fig. 1 Diaphragm element
Type description: TRE80 - 80X TRE = Product family 80 = Max. capacity X = Refrigerant code, R22
4 DKRCC.PD.AL0.A3.02 / 520H7180 © Danfoss A/S (AC-DSL / SKT), 07 - 2012
Data sheet Thermostatic expansion valves, type TRE 80
Ordering Valve and bulb strap are supplied in bulk industrial pack or individually in multipack. The numbers supplied are as follows:
Note:Insufficient subcooling can produce flash gas.
ExampleRefrigerant = R22Evaporating temperature te = –10 °C / 14 °F pe = 3.5 bar / 51 psiCondensing temperature tc = 40 °C / 104 °F pc = 15.5 bar / 225 psiPressure drop in valve ∆p = 15.5 - 3.5 - 2 = 10 bar / 154 psi1)
Subcooling ∆tsub = 15 K / 27 °F
Evaporator capacity = 193 kW / 55.1 TRCorrection value from table = 1.11
Sizing Correction for subcooling ∆tsubThe evaporator capacity used must be corrected if subcooling deviates from 4 K (7.2 °F). The corrected capacity can be obtained by dividing the evaporator capacity by the correction factor given below.
The corrected evaporator capacity thus becomes 193 : 1.11 = 192.5 kW / 55 TRSince the expansion valve capacity must be equal to or slightly greater than the corrected evaporator capacity of 192.5 kW / 55 TR, a TRE80 with a table capacity of 193 kW / 55.1 TR would be a suitable choice.
1) The pressure drop (pc - pe) must be corrected for pressure drop in the liquid line and distributor and leads. If in doubt, allow 2 bar / 20 psi. Therefore actual pressure drop isΔp = pc - pe - 2 bar.
To avoid charge migration when MOP valves are used, the bulb temperature must be lower than the thermostatic element temperature.
Correction factor ∆tsub
4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
7.2 °F 18 °F 27 °F 36 °F 45 °F 54 °F 63 °F 72 °F 81 °F 90 °F
R22 1.00 1.06 1.11 1.15 1.20 1.25 1.30 1.35 1.39 1.44
R410A 1.00 1.08 1.15 1.21 1.27 1.33 1.39 1.45 1.50 1.56
R407C 1.00 1.08 1.14 1.21 1.27 1.33 1.39 1.45 1.51 1.57
R134a 1.00 1.08 1.13 1.19 1.25 1.31 1.37 1.42 1.48 1.54
R404A / R507 1.00 1.10 1.20 1.29 1.37 1.46 1.54 1.63 1.70 1.78
Type Industrial pack Multipack
TRE80 4 pcs 4 pcs
Overview of product rangeCapacity Refrigerant Range MOP
TR kW Type Code
40 - 70 140 - 246 R22 X K 15 °C / 60 °F
40 - 70 140 - 246 R22 X N
55 - 100 193 - 350 R410A L K 15 °C / 60 °F
40 - 85 193 - 350 R410A L N
40 - 70 140 - 246 R407C Z K 15 °C / 60 °F
40 - 70 140 - 246 R407C Z N
20 - 45 88 - 158 R134a N K 15 °C / 60 °F
20 - 45 88 - 158 R134a N N
K: –25 → +10 °C / –15 → +50 °FN: –40 → +10 °C / –40 → +50 °F
MOP pointsRefrigerant Range K
–25 → +10 °C / –15 → +50 °F
MOP pointfor evaporating temperature te and evaporating pressure pe
1)te = +15 °C / +60 °F
R22 pe = 100 psig / 6.9 bar
R410A pe = 165 psig / 11.5 bar
R407C pe = 95 psig / 6.6 bar
R134a pe = 55 psig / 3.9 bar
R404A/R507 pe = 120 psig / 8.4 bar1) pe in bar gauge
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 5
Data sheet Thermostatic expansion valves, type TRE 80
OrderingStandard program
Pressure equalisation = 1/4 in. ODF
1) The rated capacity is based on: Evaporating temperature, te = 5 °C Liquid temperature, tl = 28 °C Condensing temperature, tc = 32 °C Opening superheat, OS = 4 K2) Number of valves in industrial and
multipacks: (see previous page).
R22, R410AType
Rated capacity
Qnom 1)
TR
Rated capacity
Qnom 1)
kW
Connection
ODF solder
Range K–25 °C / +10 °C MOP 15 °C–15 °C / +50 °F MOP 60 °F
Range N–40 °C / +10 °C–40 °C / +50 °F
Inlet
in.
Outlet
in.
Code no.Multi-pack2)
Code no.Industrial
pack2)
Code no.Multi-pack2)
Code no.Industrial
pack2)
TRE80-40X
TRE80-55X
TRE80-70X
140
193
245
11/8
11/8
11/8
13/8
13/8
15/8
067L3063
067L4060
067L4063
067L4066
067L3160
067L3163
067L3166
067L4160
067L4163
067L4166
TRE80-55L
TRE80-55L
TRE80-80L
TRE80-80L
TRE80-80L
TRE80-100L
TRE80-100L
193
193
280
280
280
350
350
11/8
11/8
11/8
11/8
13/8
11/8
13/8
11/8
13/8
13/8
15/8
13/8
15/8
15/8
067L3069
067L3070
067L3073
067L3078
067L3079
067L4070
067L4073
067L4074
067L4075
067L4078
067L4079
067L3169
067L3170
067L3174
067L3175
067L3178
067L3179
067L4169
067L4170
067L4174
067L4175
067L4178
067L4179
For connections, refrigerants, capillary tube lengths, etc. outside the standard program, see Valve options.
R407C, R134aType
Rated capacity
Qnom 1)
TR
Rated capacity
Qnom 1)
kW
Connection
ODF solder
Range K–25 °C / +10 °C MOP 15 °C–15 °C / +50 °F MOP 60 °F
Range N–40 ° / +10 °C–40 ° /+50 °F
Inlet
in.
Outlet
in.
Code no.Multi-pack2)
Code no.Industrial
pack2)
Code no.Multi-pack2)
Code no.Industrial
pack2)
TRE80-40Z
TRE80-55Z
TRE80-70Z
140
193
245
11/8
11/8
11/8
13/8
13/8
15/8
067L3085
067L3088
067L4082
067L4085
067L4088 067L3188
067L4182
067L4185
067L4188
TRE80-25N
TRE80-35N
TRE80-45N
88
123
158
11/8
11/8
11/8
11/8
13/8
15/8 067L3097
067L4094
067L4097 067L3197
067L4194
067L4197
For connections, refrigerants, capillary tube lengths, etc. outside the standard program, see Valve options.
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 6
Data sheet Thermostatic expansion valves, type TRE 80
Capacity
R22Capacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the 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 +5 °C
TRE 80 - 40XTRE 80 - 55XTRE 80 - 70X
100.4138.3177.1
128.9177.5224.3
144.9198.3251.2
154.4211.2267.0
159.9218.5276.8
162.6222.2282.6
163.4223.7283.4
162.8223.1284.3
95.2132.3171.3
121.0168.9215.0
136.8188.5240.4
145.5200.2257.2
150.3206.9263.7
152.7210.2268.3
153.3219.6270.1
152.7219.1269.4
Evaporating temperature 0 °C Evaporating temperature –5 °C
TRE 80 - 40XTRE 80 - 55XTRE 80 - 70X
90.0125.5162.3
114.7159.5204.9
128.2178.2227.8
135.9188.0241.3
140.1193.5249.0
142.1196.8253.0
142.6197.6254.2
141.7196.5253.0
84.0118.2153.3
106.6148.1193.3
118.8165.4213.9
125.7174.8226.0
129.3179.9232.9
130.9182.4236.2
131.2182.8237.0
130.3181.7235.8
Evaporating temperature –10 °C Evaporating temperature –15 °C
TRE 80 - 40XTRE 80 - 55XTRE 80 - 70X
77.5109.7143.8
98.3138.1179.9
109.1152.7198.7
115.1161.0209.4
118.3165.3215.5
119.6167.5218.3
119.6167.7218.8
118.7166.5217.5
71.1101.1133.4
89.5126.4165.8
99.0139.5182.7
104.4146.8192.3
107.1150.7197.5
108.2152.2199.8
108.0152.3200.0
107.1151.0198.5
Evaporating temperature –20 °C Evaporating temperature –25 °C
TRE 80 - 40XTRE 80 - 55XTRE 80 - 70X
64.593.1
121.3
80.8114.6151.2
89.2126.1166.2
93.7132.5174.6
96.0135.8179.1
96.9137.0181.0
96.7136.9180.9
95.7135.7179.4
58.283.0
110.5
72.3102.8136.4
79.4112.9149.6
83.3118.5157.0
85.3121.2160.8
85.9122.2162.3
85.6121.9162.0
84.7120.7160.5
Capacity
R22Capacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature –30 °C Evaporating temperature –35 °C
TRE 80 - 40XTRE 80 - 55XTRE 80 - 70X
51.474.098.9
63.991.3
121.7
70.1100.0133.3
73.4104.8139.7
75.1107.1142.8
75.5107.8143.9
75.2107.5143.6
74.3106.3142.1
45.265.287.7
55.980.2
107.4
61.287.8
117.3
64.091.8
122.9
65.493.7
125.6
65.794.2
126.4
65.393.8
125.9
64.592.7
124.5
Evaporating temperature –40 °C
TRE 80 - 40XTRE 80 - 55XTRE 80 - 70X
39.456.976.8
48.569.793.8
52.876.2
102.4
55.379.6
106.9
56.481.2
109.3
56.681.6
109.9
56.381.1
109.3
55.580.0
107.9
Correction factors for subcooling ∆tu
∆tu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
R22 1.00 1.06 1.11 1.15 1.20 1.25 1.30 1.35 1.39 1.44
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 7
Data sheet Thermostatic expansion valves, type TRE 80
Capacity
R410ACapacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the 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 +5 °C
TRE 80 - 55LTRE 80 - 80LTRE 80 - 100L
145.5196.5248.2
185.0252.7309.8
204.6274.7343.0
214.9286.2356.9
216.1289.6363.1
213.8287.1360.3
208.9280.4351.5
200.3269.3337.9
140.9191.8240.7
179.3241.9306.2
197.2266.3334.8
205.7276.9349.7
207.8280.7354.0
205.9278.1351.7
200.7271.4344.0
192.9261.5332.0
Evaporating temperature 0 °C Evaporating temperature –5 °C
TRE 80 - 55LTRE 80 - 80LTRE 80 - 100L
136.3185.2234.2
171.0232.8295.9
188.0255.4324.1
196.0265.7337.1
197.7268.4341.8
195.7266.1339.3
190.9259.2331.9
183.9250.6320.5
128.7177.9225.3
161.8222.3284.2
177.4242.5310.4
184.3251.9322.8
185.8263.8326.2
184.4251.8323.7
179.4245.9316.6
172.8237.2305.9
Evaporating temperature –10 °C Evaporating temperature –15 °C
TRE 80 - 55LTRE 80 - 80LTRE 80 - 100L
121.0167.6220.7
151.3208.6269.5
165.4227.8293.9
171.5236.1305.0
173.0238.1307.9
171.1235.5305.3
166.8230.0298.5
160.9221.9288.4
112.6156.9205.0
139.9194.5253.1
152.7211.3275.2
158.1217.9285.0
159.2220.4287.3
157.3218.1284.7
153.4212.8278.1
147.7205.0269.1
Evaporating temperature –20 °C Evaporating temperature –25 °C
TRE 80 - 55LTRE 80 - 80LTRE 80- 100L
103.4145.1191.2
127.9179.0234.5
142.0194.4254.8
144.0200.8263.4
145.0202.0265.3
143.1199.7262.6
139.4194.6256.3
134.2187.7247.4
94.1132.8176.2
115.9162.9215.3
125.9176.6233.2
130.1182.2240.8
130.6183.1242.1
128.9180.8239.4
125.3176.0233.5
120.6169.5225.2
Capacity
R410ACapacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the valve ∆p bar
3 6 9 12 15 18 21 24 3 6 9 12 15 18 21 24
Evaporating temperature –30 °C Evaporating temperature –35 °C
TRE 80 - 55LTRE 80 - 80LTRE 80 -100L
84.6118.3160.3
104.4146.7194.9
112.6158.6210.9
116.0163.6217.5
116.3164.0218.5
114.6161.8215.7
111.5157.4210.2
107.2151.5202.4
74.6107.1143.8
92.2130.7174.8
99.5141.0188.6
102.4145.0194.2
102.6145.4194.9
101.0143.2192.2
98.1139.2187.0
94.2133.8180.0
Evaporating temperature –40 °C
TRE 80 - 55LTRE 80 - 80LTRE 80 -100L
66.194.6
127.8
80.9115.0154.7
87.1123.9166.7
89.4127.3171.5
89.5127.4171.8
88.0125.3169.2
85.3121.7164.4
81.9116.9158.1
Correction factors for subcooling ∆tu
∆tu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
R410A 1.00 1.08 1.15 1.21 1.27 1.33 1.39 1.45 1.50 1.56
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 8
Data sheet Thermostatic expansion valves, type TRE 80
Capacity
R407CCapacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the 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 +5 °C
TRE 80 - 40ZTRE 80 - 55ZTRE 80 - 70Z
96.1132.5171.7
123.5168.2215.3
135.8186.3237.5
143.3196.0252.0
146.7200.5256.0
147.5209.2257.2
146.4200.0256.0
143.9196.8252.0
91.0126.6163.5
115.6159.6205.5
128.0176.3226.6
134.8185.0237.6
138.2189.1242.7
138.1189.7244.0
136.8188.0244.9
134.4185.0238.3
Evaporating temperature 0 °C Evaporating temperature –5 °C
TRE 80 - 40ZTRE 80 - 55ZTRE 80 - 70Z
85.5119.5155.9
107.9150.9194.4
119.3165.1213.5
125.0173.0223.5
127.6176.1228.1
128.1176.9229.0
126.1175.2227.1
124.4172.0223.0
79.4111.7146.4
99.9139.5181.8
112.1153.1198.9
115.2160.1208.1
117.4162.9212.0
117.5163.1212.4
116.1161.4210.3
113.9158.3206.5
Evaporating temperature –10 °C Evaporating temperature –15 °C
TRE 80 - 40ZTRE 80 - 55ZTRE 80 - 70Z
73.3102.3136.4
91.7128.3168.1
100.5140.4183.7
105.1146.4191.6
106.7148.8194.9
106.8148.9195.1
105.7147.1193.0
103.2144.2189.3
66.895.7
124.6
83.1116.8154.0
90.9127.3160.5
94.7132.7174.6
96.2134.7177.4
96.0134.7177.3
94.7132.8175.2
92.6129.9171.6
Evaporating temperature –20 °C Evaporating temperature –25 °C
TRE 80 - 40ZTRE 80 - 55ZTRE 80 - 70Z
59.885.6
113.8
74.5105.2139.3
81.3114.6151.5
84.6119.1157.5
85.8120.7159.8
85.5120.4159.5
84.2118.7157.4
82.3116.0153.9
53.776.8
102.5
66.293.7
124.8
72.1101.9135.4
74.8105.7140.6
75.7107.0142.4
75.4106.6141.9
74.2104.9139.9
72.3102.4136.7
Capacity
R407CCapacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature –30 °C Evaporating temperature –35 °C
TRE 80 - 40ZTRE 80 - 55ZTRE 80 - 70Z
47.568.091.2
58.382.8
110.7
63.389.7
119.9
65.592.9
124.2
66.294.0
125.6
65.893.4
125.1
64.791.9
123.1
63.089.6
120.0
41.559.580.2
50.772.397.0
55.078.2
104.9
56.980.9
108.6
57.781.7
109.7
56.981.1
109.0
55.879.7
107.2
54.377.5
104.4
Evaporating temperature –40 °C
TRE 80-40ZTRE 80-55ZTRE 80-70Z
36.151.870.2
43.962.884.7
47.567.991.5
49.170.294.6
49.570.795.4
49.170.294.8
48.168.993.1
46.867.090.6
Correction factors for subcooling ∆tu∆tu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
R407C 1.00 1.08 1.14 1.21 1.27 1.33 1.39 1.45 1.51 1.57
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 9
Data sheet Thermostatic expansion valves, type TRE 80
Capacity
R134aCapacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the 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 +5 °C
TRE 80 - 25NTRE 80 - 35NTRE 80 - 45N
79.9111.5140.4
98.3135.9174.1
106.6146.9187.8
109.8151.2193.5
110.2151.8194.4
108.7149.9192.3
106.0146.3188.0
102.3141.4182.0
74.3103.8137.6
91.1127.0163.1
98.2136.0173.5
100.9139.7180.3
101.0139.9180.5
99.5137.9178.2
96.8134.3173.8
93.3129.7168.1
Evaporating temperature 0 °C Evaporating temperature –5 °C
TRE 80 - 25NTRE 80 - 35NTRE 80 - 45N
68.296.1
125.6
83.4116.4151.1
89.5124.7161.8
91.7127.7165.8
91.6127.7165.7
90.0125.6163.4
87.4122.1159.4
84.1117.6153.5
62.388.4
115.6
75.5105.9138.5
80.8113.2147.7
82.5115.6151.1
82.3115.3150.7
80.7113.2148.2
78.2109.8144.0
75.1105.6138.7
Evaporating temperature –10 °C Evaporating temperature –15 °C
TRE 80 - 25NTRE 80 - 35NTRE 80 - 45N
56.179.8
105.7
67.694.4
125.3
72.2101.6133.6
73.5103.5136.1
73.1103.0135.6
71.6100.9133.2
69.297.7
129.0
66.493.8
123.9
50.271.494.7
60.184.9
112.2
63.890.2
119.2
64.891.6
121.3
64.391.1
120.8
62.889.1
118.0
60.686.1
114.2
58.082.4
109.5
Evaporating temperature –20 °C Evaporating temperature –25 °C
TRE 80 - 25NTRE 80 - 35NTRE 80 - 45N
44.263.284.2
52.674.999.5
55.879.3
105.4
56.680.5
107.0
56.079.7
106.1
54.677.8
103.6
52.675.0
100.0
50.271.695.7
38.655.474.1
45.765.387.1
48.369.092.1
48.969.893.3
48.369.092.3
46.967.290.0
45.164.686.7
43.061.682.6
Capacity
R134aCapacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature –30 °C Evaporating temperature –35 °C
TRE 80 - 25NTRE 80 - 35NTRE 80 - 45N
33.348.064.4
39.356.375.5
41.459.479.6
41.860.080.5
41.259.279.5
40.057.477.2
38.355.174.2
36.452.470.6
28.541.155.4
33.448.164.7
35.150.668.1
35.450.968.7
34.850.067.6
33.748.665.6
32.246.562.8
30.544.159.6
Evaporating temperature –40 °C
TRE 80 - 25NTRE 80 - 35NTRE 80 - 45N
24.134.847.1
28.240.654.9
29.542.657.7
29.642.858.0
29.142.157.0
28.140.655.1
26.838.852.6
25.336.749.8
Correction factors for subcooling ∆tu
∆tu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
R134a 1.00 1.08 1.13 1.19 1.25 1.31 1.37 1.42 1.48 1.54
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 10
Data sheet Thermostatic expansion valves, type TRE 80
Capacity
R404ACapacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the 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 +5 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
80.0109.3138.7
100.3136.4171.9
109.9145.4187.0
113.6154.2193.0
113.9154.1194.6
112.0151.6190.8
108.5147.6185.0
103.6140.5177.2
77.6106.6136.5
96.9132.2167.9
105.2144.0182.2
109.1148.3187.7
109.2148.3188.0
107.1146.0184.8
102.6141.5179.1
99.0135.0171.6
Evaporating temperature 0 °C Evaporating temperature –5 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
74.3102.8132.9
92.3127.3162.1
100.3137.5176.5
103.4136.7180.2
103.5141.6180.2
101.2138.8176.8
97.7134.2171.3
93.4128.3164.0
70.097.7
126.3
85.8120.3154.1
94.2129.9166.8
96.3133.3170.8
96.4133.0170.3
94.5130.3167.3
91.0125.8161.8
87.0120.1154.4
Evaporating temperature –10 °C Evaporating temperature –15 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
65.892.3
119.7
81.0112.7145.7
87.4120.8156.6
89.5124.1160.0
88.7123.6159.5
87.2120.9156.2
84.0116.5150.9
79.9111.2144.1
60.885.8
112.7
74.7103.6136.2
80.3112.0145.4
82.0114.2148.5
81.3113.5147.5
79.5110.8144.2
76.5106.7139.0
72.8101.5132.6
Evaporating temperature –20 °C Evaporating temperature –25 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
55.979.1
104.1
68.095.6
125.3
72.8102.1133.6
74.2104.0136.0
73.6103.1134.1
71.6100.4132.4
68.996.6
126.7
65.491.8
120.5
50.673.495.3
61.387.2
114.0
65.492.8
121.3
66.494.4
123.0
65.793.4
122.2
63.990.9
118.6
61.287.3
114.0
58.183.0
108.2
Capacity
R404ACapacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature –30 °C Evaporating temperature –35 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
45.064.786.8
54.377.4
102.5
58.282.2
108.6
58.883.3
110.1
58.182.2
108.8
56.379.8
105.7
53.976.4
101.3
51.072.396.1
39.857.676.8
48.168.691.2
50.972.596.4
51.673.397.5
50.872.296.1
49.169.993.1
46.966.889.0
44.363.184.2
Evaporating temperature –40 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
35.250.667.6
42.059.979.8
44.363.384.5
44.763.885.3
43.963.183.9
42.460.681.1
40.457.777.4
38.054.473.0
Correction factors for subcooling ∆tu∆tu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
R404A 1.00 1.10 1.20 1.29 1.37 1.46 1.54 1.63 1.70 1.78
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 11
Data sheet Thermostatic expansion valves, type TRE 80
Capacity
R507Capacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the 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 +5 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
84.4114.9144.2
107.7144.9180.7
118.8159.9199.5
124.5167.4208.6
126.5170.0212.2
126.0169.4211.7
123.7166.4208.5
119.6161.5202.2
82.3111.6142.0
103.5140.5176.3
114.1154.2193.7
119.1161.2202.2
120.7163.2205.0
120.1162.5204.5
117.8159.5202.1
114.2154.8196.4
Evaporating temperature 0 °C Evaporating temperature –5 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
78.9108.1138.5
98.5134.7170.1
108.1147.2186.2
112.4153.0193.3
114.0154.9196.1
113.1154.1195.3
110.9151.1191.9
107.4146.5186.4
74.6103.2133.6
93.0127.2162.8
101.5139.0175.6
105.3149.2183.6
106.1145.5185.5
105.4144.6184.4
103.2141.3181.0
100.0137.1175.7
Evaporating temperature –10 °C Evaporating temperature –15 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
69.997.4
125.6
86.7119.6153.7
94.3129.8166.3
97.5134.1173.8
98.2135.1173.6
97.1133.9172.3
94.9131.0168.8
91.8126.8163.6
65.290.9
118.5
81.2111.3143.7
86.6120.0154.9
89.2123.6159.7
89.6124.5160.6
88.5122.8159.1
86.4119.9155.6
83.4116.0150.7
Evaporating temperature –20 °C Evaporating temperature –25 °C
TRE 80-30STRE 80-40STRE 80-55S
59.884.4
110.2
73.0102.0132.8
78.7109.6142.6
80.9112.6146.5
81.0112.9147.1
79.9111.4145.3
77.8108.5141.9
75.0104.8136.3
54.477.0
101.4
66.092.6
121.5
70.899.1
129.7
72.5101.5132.9
72.4101.5133.1
71.399.9
131.2
69.397.2
127.9
66.793.7
123.4
Capacity
R507Capacity in kW for range N and K and opening superheat OS = 4 K Type and rated capacity Qnom
TR
Pressure drop across the valve ∆p bar Pressure drop across the valve ∆p bar
2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16
Evaporating temperature –30 °C Evaporating temperature –35 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
49.169.692.0
59.083.1
109.6
63.088.6
116.7
64.390.6
119.3
64.190.2
119.1
62.988.7
117.2
61.086.1
113.9
58.782.9
109.8
43.762.282.9
52.273.897.8
55.578.4
103.8
56.579.8
105.8
56.179.4
105.4
55.077.8
103.4
53.275.5
100.4
51.072.496.4
Evaporating temperature –40 °C
TRE 80 - 30STRE 80 - 40STRE 80 - 55S
38.555.073.5
45.764.886.3
48.368.691.3
49.169.792.8
48.669.192.2
47.567.690.3
45.965.487.4
43.962.683.8
Correction factors for subcooling ∆tu
∆tu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K
R507 1.00 1.10 1.20 1.29 1.37 1.46 1.54 1.63 1.70 1.78
© Danfoss A/S (AC-MCI /SW), 2012-12 DKRCC.PD.AL0.A3.02 / 520H7180 12
Data sheet Thermostatic expansion valves, type TRE 80
Fig. 4. TRE
Dimensions and weights
TypeConnection, ODF solder Capillary tube
lengthH1 H2 H3 H4 L1 L2 L3 L4 øD1 øD2 Weight
in. mm m mm mm mm mm mm mm mm mm mm mm kg
TRE 80
11/8 × 11/8 28 × 28
3 47 17 13165
(148)
67
67
44 148 72 20.31.34
1.301)
11/8 × 13/8 28 × 35 77
11/8 × 15/8 28 × 42 85
13/8 × 13/8 35 × 3577
77
13/8 × 15/8 35 × 42 851) Fixed setting