thermostatic expansion valves -...

MAKING MODERN LIVING POSSIBLE

Thermostatic expansion valvesT2/ TE2Dedicated to the Chinese market

Technical brochure

Technical leafl et Thermostatic expansion valves, type T 2 and TE 2

2 DKRCC.PD.AA0.A3.41 / 520H4185 © Danfoss A/S (RC-SM / mr), 02 - 2010



Contents Page

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Superheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Ordering: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Components with fl are × fl are connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Flare connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Orifi ce assembly with fi lter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Components with fl are × solder connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Solder adaptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Orifi ce assembly with fi lter for solder adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Capacity:

R22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

R407C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

R134a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

R404A / R507 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Design - Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Identifi cation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Dimensions and weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

R22 100 psig/6.9 bar 60 psig/4.0 bar 35 psig/3.5 bar 20 psig/1.5 bar

R407C 95 psig/6.6 bar

R134a 55 psig/5.0 bar 30 psig/3.1 bar 15 psig/2.1 bar

R404A/R507 120 psig/9.3 bar 75 psig/6.2 bar 50 psig/4.4 bar 30 psig/3.1 bar


© Danfoss A/S (RC-SM / mr), 02 - 2010 DKRCC.PD.AA0.A3.41 / 520H4185 4

liquid injection in ”dry“ evaporators where the superheat at the evaporator outlet is proportional to the evaporator load.

Large temperature rangeEqually applicable to freezing, refrigeration and air conditioning applications.

Interchangeable orifi ce assembly– easier stocking– easy capacity matching– better service.

Rated capacities from 0.5 to 15.5 kW(0.15 to 4.5 TR) for R22.

Can be supplied with MOP(Max. Operating Pressure)Protects the compressor motor against excessive evaporating pressure during normal operation.

Stainless steel bulbFast and easy to install.Good temperature transfer from pipe to bulb.

Valves for special temperature ranges can be supplied.

Features

Thermostatic expansion valves regulate the injection of refrigerant liquid into evaporators.Injection is controlled by the refrigerant superheat. Therefore the valves are especially suitable for

Introduction

Technical data Max. temperatureBulb, when valve is installed: 100°CBulb, element not mounted: 60°C

Min. temperatureT 2 → TE 2: –60°C

Max. test pressurePT = 38 bar

Max. working pressurePS/MWP = 34 bar

SS = static superheatOS = opening superheatSH = SS + OS = total superheatQ

nom = rated capacity

Qmax

= maximum capacity

Static superheat SS can be adjusted with setting spindle.

Superheat The standard superheat setting SS is 5 K for valves without MOP and 4 K for valves with MOP.The opening superheat OS is 6 K from when opening begins to where the valve gives its rated capacity Q

nom.

ExampleStatic superheat SS = 5 KOpening superheat OS = 6 KTotal superheat SH = 5 + 6 = 11 K

MOP-pointsRefrigerant Range N

–40°C → +10°CRange NM

–40°C → –5°CRange NL

–40°C → –15°CRange B

–60°C → –25°C

MOP-point in evaporating temperature te and evaporating pressure pe

+15°C / +60°F 0°C / +32°F –10°C / +15°F –20°C / –4°F

1) I-pack



Ordering, components

Thermostatic element with sensor band, without orifi ce, fi lter cone, nuts

RefrigerantValve type

Pressureequalization

Capillarytube

Connection Code no.

Inlet × outlet 1)Range N

–40 to +10°CRange B

–60 to +25°C

m in. × in. mm × mm

Without MOP With MOP With MOP

Flare connection

Solder outlet &

equalization

Flare connection

Flare connection

R22 TX 2 Int. 1.5 3/8 × 1/2 10 × 12 068Z8000 068Z8006 068Z8004

TEX 2 Ext. 1.5 3/8 × 1/2 10 × 12 068Z8001 068Z8007 068Z8005

R407C TZ 2 Int. 1.5 3/8 × 1/2 10 × 12 068Z8002

TEZ 2 Ext. 1.5 3/8 × 1/2 10 × 12 068Z8003

R134a TN 2 Int. 1.5 3/8 × 1/2 10 × 12 068Z8008 068Z8010

TEN 2 Ext. 1.5 3/8 × 1/2 10 × 12 068Z8009 068Z8011

R404A/R507

TS 2 Int. 1.5 3/8 × 1/2 10 × 12 068Z8012 068Z8016

TES 2 Ext. 1.5 3/8 × 1/2 10 × 12 068Z8013068Z8017

068Z8014 068Z8015068Z80181)

Orifi ce assembly with fi lter

The rated capacity is based on:Evaporating temperature t

e = +5°C

for range N and t

e = –30°C for range B

Condensing temperature tc = +32°C

Refrigerant temperature ahead of valve t

l = +28°C

Range N: –40 to +10°C

Orifi ce no.

Rated capacity in tons (TR) Rated capacity in kW

Code no.

R22 R407C R134aR404AR507

R22 R407C R134aR404AR507

FlareSolder

adaptor only

0X 0.15 0.16 0.11 0.11 0.50 0.50 0.40 0.38 068-8000

00 0.30 0.30 0.25 0.21 1.0 1.1 0.90 0.70 068-8001 068-8008

01 0.70 0.80 0.50 0.45 2.5 2.7 1.8 1.6 068-8006 068-8009

02 1.0 1.1 0.80 0.60 3.5 3.8 2.6 2.1 068-8007

03 1.5 1.6 1.3 1.2 5.2 5.6 4.6 4.2 068-8002 068-8010

04 2.3 2.5 1.9 1.7 8.0 8.6 6.7 6.0 068-8003 068-8011

05 3.0 3.2 2.5 2.2 10.5 11.3 8.6 7.7 068-8004

06 4.5 4.9 3.0 2.6 15.5 16.7 10.5 9.1 068-8005

Orifi ce no.

Rated capacity in tons (TR) Rated capacity in kW Code no.

R22R404AR507

R22R404AR507

FlareSolder

adaptor only

0X 0.15 0.11 0.50 0.38 068-8000

00 0.20 0.21 0.70 0.70 068-8001 068-8008

01 0.30 0.45 1.0 1.6 068-8006 068-8009

02 0.60 0.60 2.1 2.1 068-8007

03 0.80 1.0 2.8 3.5 068-8002 068-8010

04 1.2 1.4 4.2 4.9 068-8003 068-8011

05 1.5 1.7 5.2 6.0 068-8004

06 2.0 1.9 7.0 6.6 068-8005

Range B: –60 to –25°C



Correction for subcooling Δt

sub

The evaporator capacities used must be corrected if subcooling deviates from 4 K.The corrected capacity can be obtained by

dividing the required evaporator capacity by the correction factor below. Selections can then be made from the tables above.

Note: Insuffi cient subcooling can producefl ash gas.

ExampleRefrigerant = R22Evaporator capacity Q

e = 5 kW

Subcooling = 10 K

Correction factor from table = 1.06Corrected capacity = 5 : 1.06 = 4.72 kW

Δtu 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 1.20 1.25 1.30 1.35 1.39 1.44

Capacity

R22Capacity in kW for range N: –40°C to +10°C

Valve typeOrifi ce

no.

Pressure drop across valve Δp bar Pressure drop across valve Δp 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

TX 2/TEX 2-0.15TX 2/TEX 2-0.3TX 2/TEX 2-0.7TX 2/TEX 2-1.0TX 2/TEX 2-1.5TX 2/TEX 2-2.3TX 2/TEX 2-3.0TX 2/TEX 2-4.5

0X00010203040506

0.370.872.23.05.48.1

10.212.6

0.481.12.84.07.2

10.813.616.7

0.551.23.24.78.3

12.515.719.3

0.601.33.45.19.1

13.817.221.0

0.631.43.65.49.7

14.518.322.3

0.651.43.75.6

10.015.018.923.1

0.651.43.85.8

10.215.419.323.5

0.671.53.85.8

10.315.519.523.7

0.370.841.92.64.66.98.8

10.8

0.481.02.43.46.19.1

11.614.2

0.551.22.74.07.1

10.513.316.3

0.591.33.04.37.8

11.514.617.8

0.631.33.14.68.2

12.215.518.9

0.651.43.24.88.5

12.716.119.6

0.661.43.34.98.7

13.016.420.0

0.661.43.35.08.8

13.216.620.2

Evaporating temperature –10°C Evaporating temperature –20°C


0X00010203040506

0.370.791.62.23.95.87.49.1

0.470.962.02.95.17.69.6

11.8

0.531.12.33.35.98.7

11.013.5

0.571.22.53.66.49.5

12.014.7

0.601.22.63.86.8

10.112.815.6

0.631.32.74.07.1

10.513.316.2

0.641.32.84.17.3

10.813.616.6

0.641.32.84.17.3

10.913.816.8

0.440.881.72.44.26.27.99.6

0.501.01.92.74.87.19.0

11.0

0.541.12.02.95.27.79.8

11.9

0.571.12.23.15.58.2

10.312.6

0.591.22.33.25.88.5

10.813.1

0.611.22.33.35.98.7

11.013.5

0.611.22.33.36.08.8

11.213.7



0X00010203040506

0.400.791.41.93.45.06.47.8

0.450.901.52.23.95.77.28.8

0.490.961.72.74.26.27.89.6

0.521.01.82.54.46.58.3

10.1

0.551.11.82.64.66.88.6

10.5

0.561.11.92.64.77.08.8

10.8

0.571.11.92.74.87.19.0

11.0

0.420.801.31.73.14.65.87.1

0.450.861.41.93.44.96.37.7

0.480.921.42.03.55.26.68.1

0.500.951.52.03.75.46.98.4

0.520.981.52.13.85.67.18.7

0.530.991.62.13.85.77.28.8

Capacity in kW for range B: –60°C to –25°C

Valve typeOrifi ce

no.


2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16


TX 2/TEX 2-0.2TX 2/TEX 2-0.3TX 2/TEX 2-0.6TX 2/TEX 2-0.8TX 2/TEX 2-1.2TX 2/TEX 2-1.5TX 2/TEX 2-2.0

00010203040506

0.691.21.73.04.45.66.8

0.831.52.13.85.67.18.7

0.941.72.44.36.48.19.8

1.01.92.64.76.98.7

10.7

1.12.02.85.07.39.3

11.3

1.12.02.95.27.69.6

11.8

1.12.12.95.37.89.9

12.1

1.22.13.05.37.9

10.012.3

0.661.11.52.73.95.06.1

0.791.41.93.45.06.47.8

0.891.52.23.95.77.28.8

0.961.72.34.26.27.89.6

1.01.82.54.46.58.3

10.1

1.11.82.64.66.88.6

10.5

1.11.92.64.77.08.8

10.8

1.11.92.74.87.19.0

11.0



00010203040506

0.600.901.22.23.24.15.0

0.711.11.62.84.05.16.3

0.801.31.73.14.65.87.1

0.861.41.93.44.96.37.7

0.921.42.03.55.26.68.1

0.951.52.13.75.46.98.4

0.981.52.13.85.67.18.7

0.991.62.13.85.77.28.8

0.540.741.01.82.63.44.1

0.650.921.32.33.34.25.1

0.721.01.42.63.74.75.8

0.781.11.52.74.05.16.2

0.821.21.62.94.25.46.6

0.851.21.73.04.45.66.9

0.871.31.73.14.55.87.1

0.881.31.73.14.65.97.2

Evaporating temperature –60°C


00010203040506

0.500.640.91.62.22.93.5

0.600.791.11.92.83.64.4

0.660.881.22.23.14.04.9

0.710.951.32.33.44.35.3

0.751.01.42.43.64.65.6

0.771.01.42.53.74.85.8

0.791.11.42.63.84.96.0

0.801.11.42.63.95.06.1



Capacity

R407CCapacity in kW for range N: –40°C to +10°C

Valve typeOrifi ce

no.


2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16


TZ 2/TEZ 2 - 0.16TZ 2/TEZ 2 - 0.30TZ 2/TEZ 2 - 0.80TZ 2/TEZ 2 - 1.1TZ 2/TEZ 2 - 1.6TZ 2/TEZ 2 - 2.5TZ 2/TEZ 2 - 3.2TZ 2/TEZ 2 - 4.9

0X00010203040506

0.400.902.33.15.68.4

10.613.1

0.501.12.94.17.4

11.114.017.2

0.561.23.34.88.5

12.816.019.7

0.611.33.45.29.2

13.917.421.2

0.631.43.65.49.7

14.518.322.3

0.641.43.65.59.8

14.718.522.6

0.631.43.75.69.9

14.918.722.8

0.641.43.65.69.9

14.918.722.8

0.400.872.02.74.87.29.2

11.2

0.501.02.53.56.39.4

11.914.6

0.561.22.84.17.2

10.713.616.6

0.601.33.04.37.9

11.614.718.0

0.631.33.14.68.2

12.215.518.9

0.641.43.14.78.3

12.415.819.2

0.641.43.24.88.4

12.615.919.4

0.631.33.24.88.4

12.715.919.4



0X00010203040506

0.380.821.72.34.16.07.79.5

0.481.02.03.05.27.89.8

12.0

0.541.12.33.36.08.8

11.113.6

0.571.22.53.66.49.5

12.014.7

0.601.22.63.86.8

10.112.815.6

0.621.32.63.97.0

10.313.015.9

0.621.32.74.07.1

10.513.216.1

0.611.22.73.96.9

10.413.116.0

0.450.901.72.44.36.38.19.8

0.511.01.92.74.87.29.1

11.1

0.541.12.02.95.27.79.8

11.9

0.561.12.23.15.48.1

10.212.5

0.571.22.23.15.68.2

10.512.7

0.591.22.23.25.78.4

10.613.0

0.571.12.23.15.68.3

10.512.9



0X00010203040506

0.410.811.41.93.55.16.58.0

0.450.901.52.23.95.87.38.9

0.491.01.72.74.26.17.79.5

0.511.01.82.54.36.48.19.9

0.531.11.72.54.46.58.3

10.1

0.531.01.82.54.56.78.4

10.3

0.531.01.82.54.56.68.4

10.2

0.420.801.31.73.14.65.87.1

0.440.841.41.93.34.86.27.5

0.460.901.31.93.45.06.37.8

0.480.901.41.93.55.16.68.0

0.480.901.42.03.55.26.68.1

0.490.901.51.93.55.26.68.1


sub




Δtu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K




R134aCapacity in kW for range N: –40°C to +10°C

Valve typeOrifi ce

no.


2 4 6 8 10 2 4 6 8 10


TN 2/TEN 2 - 0.11TN 2/TEN 2 - 0.25TN 2/TEN 2 - 0.5TN 2/TEN 2 - 0.8TN 2/TEN 2 - 1.3TN 2/TEN 2 - 1.9TN 2/TEN 2 - 2.5TN 2/TEN 2 - 3.0

0X00010203040506

0.340.711.52.03.65.46.98.4

0.430.861.92.64.77.08.9

10.8

0.470.932.13.05.37.89.9

12.1

0.500.972.23.15.68.3

10.812.8

0.510.982.23.25.88.6

10.913.2

0.330.651.31.73.04.55.77.0

0.420.781.62.23.95.77.38.9

0.460.861.72.44.46.48.1

10.0

0.470.891.82.64.66.88.6

10.5

0.490.911.82.64.77.08.8

10.8



0X00010203040506

0.300.591.01.42.53.64.65.7

0.380.701.31.83.14.65.87.1

0.430.771.42.03.55.16.58.0

0.440.811.52.13.75.46.98.4

0.440.821.52.13.85.67.18.6

0.280.530.811.12.02.93.74.5

0.350.621.001.42.53.64.65.6

0.390.691.11.52.84.05.16.2

0.410.721.21.62.94.35.46.6

0.420.731.21.73.04.45.56.8



0X00010203040506

0.250.480.660.901.62.33.03.6

0.320.550.801.12.02.93.64.4

0.350.610.881.22.23.24.04.9

0.370.640.931.32.33.34.25.2

0.380.640.951.32.33.44.35.3

0.230.440.540.741.31.92.43.0

0.280.500.650.891.62.32.93.6

0.320.540.720.981.82.63.24.0

0.330.560.761.01.92.73.54.2

0.340.570.771.01.92.73.54.3

Capacity


sub




Δtu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K





sub




Δtu 4 K 10 K 15 K 20 K 25 K 30 K 35 K 40 K 45 K 50 K


Capacity

R404A / R507Capacity in kW for range N: –40°C to +10°C

Valve typeOrifi ce

no.


2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16


TS 2/TES 2 - 0.11TS 2/TES 2 - 0.21TS 2/TES 2 - 0.45TS 2/TES 2 - 0.6TS 2/TES 2 - 1.2TS 2/TES 2 - 1.7TS 2/TES 2 - 2.2TS 2/TES 2 - 2.6

0X00010203040506

0.280.671.72.34.26.27.99.7

0.350.822.13.05.48.1

10.212.5

0.400.902.33.46.09.1

11.414.0

0.420.942.43.66.49.7

12.214.9

0.430.962.53.76.6

10.012.515.3

0.430.962.53.76.7

10.012.615.3

0.420.932.43.76.69.8

12.315.1

0.410.902.33.66.49.6

12.014.7

0.300.681.52.13.75.57.08.6

0.370.801.92.64.77.18.9

10.9

0.410.872.03.05.37.9

10.012.2

0.420.902.13.15.68.3

10.512.9

0.430.922.23.25.88.6

10.813.2

0.430.932.23.35.88.6

10.913.3

0.430.912.23.25.78.5

10.813.1

0.410.872.13.15.68.3

10.412.7



0X00010203040506

0.300.651.31.83.14.75.97.3

0.370.761.62.24.06.07.69.3

0.400.821.72.54.56.68.4

10.3

0.420.841.82.64.77.08.8

10.8

0.420.871.82.74.87.19.0

11.0

0.420.871.92.74.87.29.1

11.1

0.410.851.82.74.87.19.0

11.0

0.410.831.82.64.76.98.7

10.7

0.350.701.31.93.34.96.27.6

0.380.751.52.03.75.46.98.4

0.400.771.52.13.85.67.28.8

0.390.791.52.23.95.87.38.9

0.400.791.52.23.95.87.38.9

0.390.791.52.23.95.77.28.8

0.380.761.52.13.85.67.18.6



0X00010203040506

0.350.671.21.62.94.35.56.7

0.370.701.21.73.04.55.76.9

0.360.701.21.73.14.55.77.0

0.370.701.21.73.14.55.77.0

0.360.691.21.73.04.55.76.9

0.350.671.21.62.94.45.56.8

0.320.600.921.32.33.34.35.2

0.330.610.961.32.43.54.45.4

0.330.620.971.32.43.54.55.5

0.330.610.961.32.43.54.45.4

0.320.600.941.32.33.44.45.3

0.320.590.911.22.23.34.25.2

Capacity in kW for range B: –60°C to –25°C

Valve typeOrifi ce

no.


2 4 6 8 10 12 14 16 2 4 6 8 10 12 14 16


TS 2/TES 2 - 0.21TS 2/TES 2 - 0.45TS 2/TES 2 - 0.6TS 2/TES 2 - 1.0TS 2/TES 2 - 1.4TS 2/TES 2 - 1.7TS 2/TES 2 - 1.9

00010203040506

0.570.981.32.43.54.45.4

0.671.21.73.04.45.66.8

0.721.31.83.34.86.17.5

0.731.51.93.45.06.47.8

0.741.41.93.55.16.57.9

0.851.41.93.55.16.57.9

0.741.41.93.45.16.47.9

0.711.311.93.34.96.37.6

0.530.881.22.13.13.94.8

0.641.071.52.73.94.96.1

0.671.21.62.94.35.56.7

0.701.21.73.04.55.76.9

0.701.21.73.14.55.77.0

0.701.21.73.14.55.77.0

0.691.21.73.04.55.76.9

0.671.21.62.94.45.56.8



00010203040506

0.560.851.22.13.03.94.7

0.600.921.32.33.34.35.2

0.610.961.32.43.54.45.4

0.620.971.32.43.54.55.5

0.610.961.32.43.54.45.5

0.600.941.32.33.44.45.3

0.590.911.22.23.34.25.2

0.490.510.911.62.43.03.7

0.530.570.991.82.63.34.0

0.540.601.01.82.73.44.2

0.540.601.01.82.73.54.2

0.530.601.01.82.73.44.2

0.520.600.981.82.63.44.1

0.500.590.951.72.63.34.0

Evaporating temperature –60°C


00010203040506

0.460.580.781.42.02.63.2

0.480.600.801.42.12.73.3

0.470.600.801.42.12.73.3

0.450.580.781.42.12.73.3

0.450.560.751.42.02.63.2

0.430.540.721.32.02.53.1

��

��

��

��

T 2



DesignFunction

GeneralT 2 and TE 2 valves have an interchangeable orifi ce assembly.

For the same valve type and refrigerant, the associated orifi ce assembly is suitable for all vers ions of valve body and in all evaporating tem pe ra tu re ranges. The charge in the thermostatic element depends on the evaporating temperature range.The valves can be equipped with internal (T 2) or external (TE 2) pressure equalization.

External pressure equalization should always be used on systems with liquid distributors.The double contact bulb gives fast and precise reaction to temperature changes in the evaporator. It also makes fi tting the bulb quick and easy.The valves are able to withstand the eff ects that normally occur with hot gas defrosting.

To ensure long operating life, the valve cone and seat are made of a special alloy with particularly good wear qualities.

1. Thermostatic element (diaphragm) 2. Interchangeable orifi ce assembly 3. Valve body 4. Superheat setting spindle (see instructions)

��

��

��

��

��

��

��

��

��



Identifi cation The thermostatic element is fi tted with a laser engraving on top of the diaphragm.This engraving gives valve type (with code number), evaporating temperature range, MOP point, refrigerant, and max. working pressure, PS/MWP.

The code refers to the refrigerant for which the valve is designed:X = R22 Z = R407CN = R134a S = R404A/ R507

Orifi ce assembly for T 2 and TE 2The orifi ce assembly is marked with the orifi ce size (e.g. 06) and week stamp + last number in the year (e.g. 174). The orifi ce assembly number is also given on the lid of its plastic container.

Capillary tube label for T 2 and TE 2The label gives the orifi ce size (04) and consists of the lid of the orifi ce assembly plastic con tai ner. It can easily be fastened around the expansion valve capillary tube to clearly identify the valve size.

Dimensions and weights T 2 and TE 2

Flare × fl are

Weight: 0.05 kg

0.11 lb

Flare × solderSolder adaptor

OutletA

EqualizationB

Weightkg / lb

Flare × fl are 1/2 ” fl are 1/4 ” fl are 0.3 / 0.7

Flare × solder1/2 ” solder

12 mm solder

1/4 ” solder 6 mm solder

0.3 / 0.7

ODF

in. mm

1/4 63/8 10

Orifi ce assembly and fi lterfor T 2 and TE 2

Capillary tube labelT 2 and TE 2

thermostatic expansion valves -...

Documents