Honeywell TMX PRODUCT DATA
Series TMX
THERMOSTATIC EXPANSION VALVES INTERCHANGEABLE ORIFICE CARTRIDGE, BALANCED PORT
TMXB
TMXL
Application
Thermostatic expansion valves series TMX are used in general refrigeration and for original equipment.
Plants with one or more refrigerant circuits such as refrigerated cabinets, deep freezing plants, milk cooling units, water chillers, air conditioning systems, cold stores and heat pumps. For plants with single and multiple injections, with high or low flow resistance, for all kind of distributors.
Materials
Body |
brass |
Thermal head |
stainless steel |
Base |
brass |
PRODUCT DATA
Features
•TMXL: TMX and solder base, two-way construction or angle construction
•TMXB: TMX and flare base, two way construction
•Damped gas charge with pressure limiting MOP
•Liquid charge
•Adjustable superheat setting
•Solder connections or flare connections
•External pressure equalisation is integrated in the valve body
•Extreme durable due to stainless steel head and stainless steel diaphragm welded using protective gas
•Balanced port construction
•Interchangeable orifice cartridges
•Refrigerants: R22, R23, R124, R134a, R227, R236fa,
R401A, R404A, R407C, R410A, R422D, R507A, R508B, ISC89
Further refrigerants and MOP on request.
Specification
Nominal capacity range
Evaporating temperature range
Maximum pressure PS Maximum test pressure PF Max. ambient temperature Max. bulb temperature
Static superheat Length of capillary tube Bulb diameter
17.0 to 75.1 kW R22
see table on page 2 see table on page 2 see table on page 2 100 °C
gas charge: 140 °C liquid charge: 70 °C
approx. 3.5 K 2 m
16 mm
Copyright © 2009 Honeywell GmbH • Subject to change without notice |
EN0H-1904GE23 R0709 |
SERIES TMX
Thermal Charges and Temperature Ranges
1. Gas charge with pressure limiting MOP
Refri- |
Evaporation |
MOP |
PS |
PF |
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gerant |
temperature |
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(bar(a)) |
(bar(a)) |
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range |
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Commercial refrigerants |
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R22 |
+15 |
°C to -45 °C |
MOP +15 °C |
36 |
39.6 |
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+10 |
°C to -45 °C |
MOP +10 °C |
36 |
39.6 |
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±0 °C to -45 °C |
MOP ±0 °C |
29 |
31.9 |
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-10 °C to -45 °C |
MOP -10 °C |
29 |
31.9 |
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-18 °C to -45 °C |
MOP -18 °C |
29 |
31.9 |
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R134a |
+25 °C to -40 °C |
MOP +25 °C |
34 |
37.4 |
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+20 |
°C to -40 °C |
MOP +20 °C |
34 |
37.4 |
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+15 |
°C to -40 °C |
MOP +15 °C |
34 |
37.4 |
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+10 |
°C to -40 °C |
MOP +10 °C |
34 |
37.4 |
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±0 °C to -40 °C |
MOP ±0 °C |
29 |
31.9 |
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R401A |
+10 °C to -40 °C |
MOP +10 °C |
34 |
37.4 |
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R404A |
+10 °C to -50 °C |
MOP +10 °C |
36 |
39.6 |
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±0 °C to -50 °C |
MOP ±0 °C |
36 |
39.6 |
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-10 °C to -50 °C |
MOP -10 °C |
34 |
37.4 |
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-18 °C to -50 °C |
MOP -18 °C |
34 |
37.4 |
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-30 °C to -50 °C |
MOP -30 °C |
29 |
31.9 |
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R407C |
+15 °C to -30 °C |
MOP +15 °C |
36 |
39.6 |
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+10 |
°C to -30 °C |
MOP +10 °C |
36 |
39.6 |
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±0 °C to -30 °C |
MOP ±0 °C |
29 |
31.9 |
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R410A |
+15 °C to -50 °C |
MOP +15 °C |
40 |
44.0 |
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-10 °C to -50 °C |
MOP -10 °C |
29 |
31.9 |
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-15 °C to -50 °C |
MOP -15 °C |
29 |
31.9 |
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-20 °C to -50 °C |
MOP -20 °C |
29 |
31.9 |
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R422D |
+15 °C to -45 °C |
MOP +15 °C |
36 |
39.6 |
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-18 °C to -45 °C |
MOP -18 °C |
29 |
31.9 |
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R507A |
+10 °C to -50 °C |
MOP +10 °C |
36 |
39.6 |
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±0 °C to -50 °C |
MOP ±0 °C |
36 |
39.6 |
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-18 °C to -50 °C |
MOP -18 °C |
34 |
37.4 |
|
Further refrigerants and MOP on request.
Refri- |
Evaporation |
MOP |
PS |
PF |
|
gerant |
temperature |
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(bar(a)) |
(bar(a)) |
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range |
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Deep freeze refrigerants |
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R23 |
-40 °C to -80 °C |
MOP -40 °C |
29 |
31.9 |
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-55 |
°C to -80 °C |
MOP -55 °C |
29 |
31.9 |
R410A |
-40 |
°C to -70 °C |
MOP -40 °C |
29 |
31.9 |
R508B |
-55 |
°C to -100 °C |
MOP -55 °C |
29 |
31.9 |
Isceon 89 |
-40 |
°C to -70 °C |
MOP -40 °C |
29 |
31.9 |
Further refrigerants and MOP on request.
MOP valves protect the compressor by limiting the increase of suction pressure.
The MOP value should be chosen for the max. permissible suction pressure of the compressor or min. 5 K higher than the required evaporating temperature of the system.
For orders without any MOP indication a valve with MOP + 10 °C will be delivered.
With gas charged valves and MOP it is under all operating conditions necessary that the bulb is always colder than the capillary tube and the thermal head!
With the Honeywell TMX series the thermal head is heated advantageously by the liquid refrigerant. The warm thermal head is on the safe side at any time.
2. Liquid charge
Refrigerant |
Evaporation |
|
temperature range |
R22 |
+30 °C to -45 °C |
R124 |
+50 °C to -10 °C |
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R134a |
+20 °C to -40 °C |
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R227 |
+40 °C to -10 °C |
R236fa |
+30 °C to -10 °C |
R404A |
+10 °C to -50 °C |
R407C |
+30 °C to -30 °C |
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Further refrigerants on request.
Capacities
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Nominal capacitiy (kW)* |
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Type |
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Orifice size |
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R22 |
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R134a |
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R404A |
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R407C |
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R410A |
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R422D |
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R507A |
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R124 |
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R227 |
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R236fa |
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4.5 |
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17.0 |
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11.8 |
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12.0 |
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16.4 |
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20.3 |
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11.3 |
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12.1 |
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9.4 |
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6.6 |
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6.0 |
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TMXL |
4.75 |
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22.4 |
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15.9 |
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15.8 |
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21.6 |
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26.8 |
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15.3 |
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15.9 |
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12.4 |
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8.7 |
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8.0 |
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5 |
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29.1 |
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20.0 |
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20.5 |
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28.0 |
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34.8 |
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19.8 |
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20.7 |
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16.1 |
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11.3 |
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10.3 |
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and |
6 |
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42.4 |
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27.6 |
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29.8 |
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40.8 |
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50.8 |
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28.9 |
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30.1 |
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23.5 |
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16.4 |
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15.1 |
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7 |
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54.5 |
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35.3 |
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38.3 |
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52.5 |
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65.3 |
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37.1 |
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38.7 |
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30.2 |
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21.1 |
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19.4 |
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TMXB |
8 |
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64.1 |
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43.3 |
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45.1 |
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61.8 |
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76.9 |
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43.7 |
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45.6 |
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35.6 |
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24.9 |
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22.8 |
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10 |
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75.1 |
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51.0 |
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52.8 |
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72.3 |
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90.0 |
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51.2 |
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53.3 |
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41.7 |
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29.1 |
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26.7 |
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*Capacities are based on t0 = +4 °C, tc = +38 °C and 1 K subcooled liquid refrigerant entering the valve.
For refrigerant R124, R227 and 236fa: Capacities are based on t0 = +10 °C, tc = +50 °C and 1 K subcooled liquid refrigerant entering the valve.
For other operating conditions see capacity charts in Honeywell catalogue or consult the Honeywell software.
EN0H-1904GE23 R0709 |
2 |
Honeywell GmbH • Subject to change without notice |
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