Thermostatic expansion valves for R290 Product type TUB / TUBE and TCBE
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1 Data sheet Thermostatic expansion valves for R290 Product type and TUB/ and valves are made of stainless steel and are therefore very suitable for refrigeration systems in the food industry. Applications: Conventional refrigeration systems Heat pump systems Air conditioning systems Specialty refrigeration appliances Liquid chillers Ice machines Transport refrigeration Features Bi-metal connections - Fast and easy soldering - No need for a wet cloth Compact design - Small dimensions - Light weight - For compact installation. Stainless steel - High body strength. - High corrosion resistance. - Highly vibration-resistant, flexible capillary tube. Laser-welded power element - Insures diaphragm s structural integrity and lengthens life. Precision-machined cone and orifice - Accurately meters refrigerant under all operating conditions Stainless steel bulb - Self-aligning for fast and easy installation - Secured with a single strap or quick clip - More contact surface for better heat transfer Laser engraving - Durable positive valve identification no labels to peel off over time. Danfoss DCS (sw) DKRCC.PD.AG0.C1.02 1
2 Data sheet Thermostatic expansion valves for R290, type and Technical data TUB/ Type TUB/ Body Material Stainless steel Direction Angleway Refrigerants R290 Product group Expansion valves Product name Thermostatic expansion valve Temperature range C / F Inlet connection type Solder ODF Outlet connection type Solder ODF Capillary tube length 800 mm / 31 in Static Superheat (SS) 4.0 C / 7.2 F Packing format Single pack Max. Working Pressure 34 bar / 500 psig Technical data Type Body Material Stainless steel Direction Straightway Refrigerants R290 Product group Expansion valves Product name Thermostatic expansion valve Temperature range C / F Inlet connection type Solder ODF Outlet connection type Solder ODF Capillary tube length 900 mm / 35 in Static Superheat (SS) 4.0 C / 7.2 F Packing format Single pack Max. Working Pressure 45.5 bar / 600 psig This product is approved for R290 by ignition source assesment in accordance to standard EN Danfoss DCS (sw) DKRCC.PD.AG0.C1.02 2
3 Data sheet Thermostatic expansion valves for R290, type and Ordering Valve Orifice Connections Design Code no. [mm] [in] X 1/4 x 3 /8 Straightway 068U3700 TUB 0 1/4 x 3 /8 Straightway 068U /4 x 3 /8 Angleway 068U /4 x 3 /8 Angleway 068U /4 x 3 /8 Angleway 068U /4 x 3 /8 Angleway 068U /4 x 3 /8 Angleway 068U /4 x 3 /8 Angleway 068U /4 x 3 /8 Angleway 068U /8 x 1 /2 Angleway 068U /8 x 1 /2 Angleway 068U3710 X 6 x 12 Straightway 068U3711 TUB 0 6 x 12 Straightway 068U x 12 Angleway 068U x 12 Angleway 068U x 12 Angleway 068U x 12 Angleway 068U x 12 Angleway 068U x 12 Angleway 068U x 12 Angleway 068U x 12 Angleway 068U x 12 Angleway 068U /4 x 1 /2 Angleway 068U3731 TUB 2 1/4 x 1 /2 Angleway 068U /4 x 1 /2 Angleway 068U /4 x 1 /2 Angleway 068U /4 x 1 /2 Angleway 068U3734 Valve Orifice Connections Design Code no. [mm] [in] 1 3/8 x 5 /8 Straightway 068U /2 x 5 /8 Straightway 068U /2 x 5 /8 Straightway 068U x 16 Straightway 068U x 16 Straightway 068U x 16 Straightway 068U4388 Danfoss DCS (sw) DKRCC.PD.AG0.C1.02 3
4 Data sheet Thermostatic expansion valves for R290, type and Capacities Type / Orifice Rated capacities R290 kw TR Orifice X Orifice Orifice Orifice Orifice Orifice Orifice Orifice Orifice Orifice Orifice Orifice Orifice Orifice Danfoss DCS (sw) DKRCC.PD.AG0.C1.02 4
5 Data sheet Thermostatic expansion valves for R290, type and How to select a valve Example: SI units Q (capacity) = 0.7 kw T con (condensing temperature) = 25 C T evap (evaporator temperature) = -20 C T sub (subcooling temperature) = 10 K D pd (distributer pressure drop) = 1 bar Q (capacity) = 0.7 kw f sub (subcooling correction factor) = 1.07 f p (distributer correction factor) = 0.94 Q f sub x f p x 0.94 = Selected capacity = 0.7 kw The selection will be: TUB/ orifice 3 (0.87 kw > 0.7 kw) Capacity in kw Range -40 C 10 C Opening superheat sh = 4 K Valve Orifice no. Cond. temp. Subcooling correction factor fsub SI units R290 Evaporating Subcooling [K] Correction factor Distributer correction factor fp * Pressure drop [bar] Evaporating temp Correction factor Danfoss DCS (sw) DKRCC.PD.AG0.C1.02 5
6 Data sheet Thermostatic expansion valves for R290, type and Capacities Capacity in kw, range C Opening superheat sh = 4 K Valve Orifice Cond. temp. Evaporating SI units R X Valve Orifice Cond. temp. Evaporating X Subcooling correction factor fsub Subcooling [K] Correction factor Distributer correction factor 'fp' * Evaporating temp Pressure drop [bar] *calculated at 32 C condensing temperature Danfoss DCS (sw) DKRCC.PD.AG0.C1.02 6
7 Data sheet Thermostatic expansion valves for R290, type and Capacities Capacity in kw, range C Opening superheat sh = 4 K Valve Orifice Cond. temp. Evaporating SI units R X Valve Orifice Cond. temp. Evaporating X Subcooling correction factor fsub Subcooling [K] Correction factor Distributer correction factor 'fp' * Evaporating temp Pressure drop [bar] *calculated at 32 C condensing temperature Danfoss DCS (sw) DKRCC.PD.AG0.C1.02 7
8 Dimensions and weight Connection dimensions, see ordering tables. TUB and angleway Weight 0.13 kg Connection dimensions, see ordering tables. TUB and straightway Weight 0.13 kg Connection dimensions, see ordering tables. and TCCE - straightway Net weight 0.15 kg Danfoss DCS (sw) DKRCC.PD.AG0.C1.02 8
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