Datasheet Content
MAKING MODERN LIVING POSSIBLE
Data sheet
Thermostatic expansion valves
Type T2 / TE2
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 liquid injection in ”dry“ evaporators where
the superheat at the evaporator outlet is
proportional to the evaporator load.
Features Large temperature range Can be supplied with MOP
Equally applicable to freezing, refrigeration (Max. Operating Pressure)
and air conditioning applications. Protects the compressor motor against
Interchangeable orifice assembly excessive evaporating pressure during normal
– easy storage operation.
– easy capacity matching Stainless steel bulb and Danfoss patented bulb
– better service. strap
Rated capacities from 0.96 to 20.5 kW Fast and easy to install.
(0.27 to 5.82 TR) for R407C. Good temperature transfer from pipe to bulb.
Valves for special temperature ranges can be
supplied.
Design protected
DKRCC.PD.AA0.A6.02 / 520H7000 1
Data sheet Thermostatic expansion valves, type T 2 and TE 2
Identification The thermostatic element has laser engraved
data 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/R407C1)
Z = R407C
N = R134a
S = R404A/ R507
Production place and date
N4511A =
N = Nordborg, Denmark
(BE = Wuqing, China)
45 = week
11 = 2011
A = Monday
1
) For R407C plants, please select valves from the dedicated
R407C program
Orifice assembly for T 2 and TE 2 Orifice assembly and filter for flare x flare version
The orifice assembly is marked with the orifice for T 2 and TE 2
size (e.g. 06) and week stamp + last number in
the year (e.g. 174).
The orifice assembly number is also given on the
lid of its plastic container.
Capillary tube label for T 2 and TE 2 Capillary tube label
T 2 and TE 2
The label gives the orifice size (04) and consists
of the lid of the orifice assembly plastic container.
It can easily be fastened around the expansion
valve capillary tube to clearly identify the valve
size.
Technical data Max. temperature Max. test pressure
Bulb, when valve is installed: 100 °C PT = 38 bar
Bulb, element not mounted: 60 °C
Max. working pressure
Min. temperature PS/MWP = 34 bar
T 2 - TE 2: –60 °C
MOP-points
Refrigerant Range N Range NM Range NL Range B
–40 °C - +10 °C –40 °C - –5 °C –40 °C - –15 °C –60 °C - –25 °C
MOP-point in evaporating temperature te and evaporating pressure pe 1)
+15 °C / +60 °F 0 °C / +32 °F –10 °C / +15 °F –20 °C / –4 °F
R22 100 psig/6.9 bar (abs) 60 psig/4.0 bar (abs) 35 psig/2.4 bar (abs) 20 psig/1.4 bar (abs)
R407C 95 psig/6.6 bar (abs)
R134a 55 psig/3.8 bar (abs) 30 psig/2.0 bar (abs) 15 psig/1.0 bar (abs)
R404A/R507 120 psig/8.3 bar (abs) 75 psig/5.2 bar (abs) 50 psig/3.4 bar (abs) 30 psig/2.1 bar (abs)
1)
Pe in bar gauge
Superheat SS = static superheat The standard superheat setting SS is 5 K for valves
OS = opening superheat without MOP and 4 K for valves with MOP.
SH = SS + OS = total superheat The opening superheat OS is 6 K from when
Qnom = rated capacity opening begins to where the valve gives its rated
Qmax = maximum capacity capacity Qnom.
Static superheat SS can be adjusted with setting Example
spindle. Static superheat SS = 5 K
Opening superheat OS = 6 K
Total superheat SH = 5 + 6 = 11 K
2 DKRCC.PD.AA0.A6.02 / 520H7000
Data sheet Thermostatic expansion valves, type T 2 and TE 2
Design General External pressure equalization should always be
Function T 2 and TE 2 valves have an interchangeable used on systems with liquid distributors.
orifice assembly. The bulb gives fast and precise reaction to
temperature changes in the
The orifice assembly is suitable for all versions of evaporator. The bulb is fixed with a Danfoss
valve body and refrigerants and in all evaporating patented bulb strap for quick, easy and reliable
temperature ranges. connection. The valves are able to withstand
The charge in the thermostatic element depends the effects that normally occur with hot gas
on the refrigerant and evaporating temperature defrosting.
range.
The valves are available with internal (T2) or To ensure long operating life, the valve cone and
external (TE2) pressure equalization. seat are made of a special alloy with particularly
good wear qualities.
Danfoss
68Z05.14.20
1
2
1. Thermostatic element 4
(diaphragm)
2. Interchangeable orifice assembly
3. Valve body 3
4. Superheat setting spindle
(see instructions) T2
3 DKRCC.PD.AA0.A6.02 / 520H7000
Data sheet Thermostatic expansion valves, type T 2 and TE 2
Technical data and ordering T2/TE2 Thermostatic element with bulb strap Capillary tube: 1.5 m
Flare x flare Range N = -40 – +10 °C
Range B = -60 – -25 °C
Range NM = -40 – -5 °C MOP 0 °C
Range NL = -40 – -15 °C MOP -10 °C
Pressure Connection flare
inlet × outlet Code no.
Refrigerant Type Range MOP equlization Multi pack
Flare [in.] [mm]
TX 2 -40 – +10 °C – – 3
/8 × /2
1
10×12 068Z3206
TX 2 -40 – +10 °C +15 °C – 3…
