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MAKING MODERN LIVING POSSIBLE Data sheet Thermostatic Expansion Valves Type TRE 80 Features Bimetal connections - Waterless soldering - Quicker installation times - Higher productivity Refrigerants: - R410A, R407C, R134a, R404A, R507 and other fluorinated refrigerants Laser-welded power element: - Longer diaphragm life - High pressure tolerance and working pressure Stainless 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 service Stainless steel bulb - Straightforward and fast installation - Good thermal contact and transmission Adjustable/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

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Page 1: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

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

Page 2: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

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.

Page 3: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

© 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

Page 4: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

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

Page 5: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

© 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.

Page 6: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

© 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

Page 7: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

© 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

Page 8: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

© 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

Page 9: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

© 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

Page 10: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

© 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

Page 11: Data sheet Thermostatic Expansion Valves Type …files.danfoss.com/TechnicalInfo/Dila/01/DKRCC.PD.AL0.A3.02 TRE 80.pdfData sheet Thermostatic Expansion Valves Type TRE 80 ... Data

© 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

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© 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