Product Description
Danfos Thermostatic Expansion Valves Tez2/Tex2/Tes2/Ten2 for R12 R134A R22 R502 R404A R507
Danfos types TEZ2/TEX2/TES2/TEN2 Thermostatic expansion valves introduction
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.
Danfos types TEZ2/TEX2/TES2/TEN2 Thermostatic expansion valves Features
Large temperature range
- Equally applicable to freezing, refrigeration and air conditioning applications.
Interchangeable orifice assembly
- easy storage
- easy capacity matching
- better service.
- easy cleaning and replacement of filter
Rated capacities from 1 to 20.5 kW /0.3 to 5.8 TR for R407C
Can be supplied with MOP (Max. Operating Pressure).
- Protects the compressor motor against excessive evaporating pressure during normal operation
Stainless steel bulb and Danfos patented bulb strap
- Fast and easy to install
- Good temperature transfer from pipe to bulb
Valves for special temperature ranges can be supplied
Design protected
Danfozz types TEZ2/TEX2/TES2/TEN2 Thermostatic expansion valves 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.
T2 = internal equalization
TE2 = external equalization
Production place and date
N4511A =
N = Nordborg, Denmark
(BE = Wuqing, China)
45 = week
11 = 2011
A = Monday
Orifice assembly for T2 and TE2:
The orifice assembly is marked with the orifice 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 T2 and TE2:
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.
Danfos types TEZ2/TEX2/TES2/TEN2 Thermostatic expansion valves
Function General
T2 and TE2 valves have an interchangeable orifice assembly.
The orifice assembly is suitable for all versions of valve body and refrigerants and in all evaporating temperature ranges.
The charge in the thermostatic element depends on the refrigerant and evaporating temperature range.
The valves are available with internal (T2) or external (TE2) pressure equalization.
External pressure equalization should always be used on systems with liquid distributors.
The bulb gives fast and precise reaction to temperature changes in the evaporator. The bulb is fixed with a Danfos patented bulb strap for quick, easy and reliable connection. The valves are able to withstand the effects 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.
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