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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…