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T/TE2 Thermostatic Expansion Valves

T/TE2 Thermostatic Expansion Valves. T/TE 2 Thermostatic Expansion Valves. The T2 thermostatic expansion valve family is the most universal and adaptable in the world : Wide capacity range Wide temperature range All new and old standard refrigerants With MOP and without MOP.

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T/TE2 Thermostatic Expansion Valves

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  1. T/TE2 Thermostatic ExpansionValves T-TE 2 Product Presentation - 2001.07.23, JBMpage 1

  2. T/TE 2 Thermostatic Expansion Valves • The T2 thermostatic expansion valve family is • the most universal and adaptable in the world: • Wide capacity range • Wide temperature range • All new and old standard refrigerants • With MOP and without MOP T-TE 2 Product Presentation - 2001.07.23, JBMpage 2

  3. Danfoss T&TE 2 Thermostatic Expansion Valves for Liquid Injection into Evaporators Type T/TE 2 from 0.2 to 4.5 TR nominal capacity with 8 orifices T-TE 2 Product Presentation - 2001.07.23, JBMpage 3

  4. Multi room installation T-TE 2 Product Presentation - 2001.07.23, JBMpage 4

  5. T2 system pipe diagram T-TE 2 Product Presentation - 2001.07.23, JBMpage 5

  6. T/TE 2 Thermostatic Expansion Valve The T/TE 2 will control and maintain the amount of refrigerant to be injected into the Evaporator. It does this by keeping the Superheat Constant where the sensor is mounted on the suction line (In a constant load scenario) T-TE 2 Product Presentation - 2001.07.23, JBMpage 6

  7. T/TE 2 Body Types T 2, Internal Equalizing, two connections Inlet ¼” or 3/8” flare or solder Outlet ½” flare or solder TE 2, External Equalizing, three connections Inlet ¼” or 3/8” flare or solder Outlet ½” flare or solder Equalizing ¼” flare or solder T/TE 2, All Normal Refrigerants T-TE 2 Product Presentation - 2001.07.23, JBMpage 7

  8. Ranges: N, -40/+10°C N, -40/+10°C, MOP +15°C NM, -40/-5°C, MOP 0°C NL, -40/-15°C, MOP -10°C B, -60/-25°C B, -60/-25°C, MOP -20°C REFRIGERANTS & RANGES Standard program: R22 R12 R134a R502 R404A/R507 NOT: R410A Special program: R23 + various R407C T-TE 2 Product Presentation - 2001.07.23, JBMpage 8

  9. T/TE 2 THERMOSTATIC EXPANSION VALVES T-TE 2 Product Presentation - 2001.07.23, JBMpage 9

  10. TECHNICAL DATA Type : T2 / TE2 Refrigerants CFC / HCFC / HFC Media temp. oC -40 - +10, Range N -40 - -5 , Range NM -40 - -15, Range NL -60 - -25, Range B Max. bulb oC 100 installed MWP / PB bar 34 Max. test pressure 37 T-TE 2 Product Presentation - 2001.07.23, JBMpage 10

  11. T/TE 2 Cut-away Model T-TE 2 Product Presentation - 2001.07.23, JBMpage 11

  12. Label T-TE 2 Product Presentation - 2001.07.23, JBMpage 12

  13. Function of the T/TE 2 • The TEV will try to keep a constant superheat at a constant load situation • If there is a change in load the TEV will open more at increasing load and open less at decreasing load, and again try to keep a constant superheat • The opening degree is decided by a balance between the opening force and the closing forces • Pressure in the Power element is the opening • force (Sensor temperature) • Pressure from the refrigerant is a closing force • Pressure from the spring is the other closing force T-TE 2 Product Presentation - 2001.07.23, JBMpage 13

  14. 4.7 bar bulb pressure 4.7 bar evaporator pressure 0.7 bar spring 4.7 bar 4°C 4°C 4.7 bar 4.7 Valve in equilibrium R22 4.7 0.7 Compressor not running. TEV closed. T-TE 2 Product Presentation - 2001.07.23, JBMpage 14

  15. 3.85 bar bulb pressure 3.1 bar evaporator pressure 0.7 bar spring 3.8 bar -1,05°C -6°C 3.1 bar 3.8 R22 Valve constant opening degree 0.7 3.1 Thermostatic expansion valve is now operating at constant superheat. T-TE 2 Product Presentation - 2001.07.23, JBMpage 15

  16. 3.79 bar bulb pressure 3.1 bar evaporator pressure 0.7 bar spring 3.79 bar -6°C 3.1 bar -1.1°C 3.79 R22 Valve closing little 0.7 3.1 Thermostatic expansion valve operating at slightly reduced load. T-TE 2 Product Presentation - 2001.07.23, JBMpage 16

  17. 3.85 bar bulb pressure 0.7 bar spring 3.1 bar evaporator pressure 3.85 bar -6°C 3.1 bar -0.73°C 3.85 R22 Valve opening 0.7 3.1 Thermostatic expansion valve operating at increased load. T-TE 2 Product Presentation - 2001.07.23, JBMpage 17

  18. 4.7 bar bulb pressure 0.7 bar spring 4.7 bar evaporator pressure 4.7 bar 4°C 4°C 4.7 bar 4.7 Valve closed during standstill R22 0.7 4.7 The compressor is stopped, TEV positively closed. T-TE 2 Product Presentation - 2001.07.23, JBMpage 18

  19. Valve Capacity Full Open Capacity Reserve Capacity Rated Capacity OS SS Superheat OPS Capacity / superheat relationship T-TE 2 Product Presentation - 2001.07.23, JBMpage 19

  20. Adjusting the T/TE 2 In most cases it is not necessary to adjust the T/TE 2 If you have the experience, to improve the system performance by adjusting the valve, please do so T-TE 2 Product Presentation - 2001.07.23, JBMpage 20

  21. Adjusting the TEV T-TE 2 Product Presentation - 2001.07.23, JBMpage 21

  22. Adjusting the TEV T-TE 2 Product Presentation - 2001.07.23, JBMpage 22

  23. Changing the Orifice T-TE 2 Product Presentation - 2001.07.23, JBMpage 23

  24. Changing the Orifice, solder version T-TE 2 Product Presentation - 2001.07.23, JBMpage 24

  25. Using the T/TE 2 Why ? When ? How ? Where ? Recommendations ! T-TE 2 Product Presentation - 2001.07.23, JBMpage 25

  26. WHY ? To be able to accurately inject the amount of refrigerant required into the evaporator. T-TE 2 Product Presentation - 2001.07.23, JBMpage 26

  27. WHEN ? Every time there is a refrigeration system there should be one TEV for each evaporator (If not another means of throttle device is used) T-TE 2 Product Presentation - 2001.07.23, JBMpage 27

  28. HOW ? By mounting the TEVin the refrigeration circuit with any necessary adjustment T-TE 2 Product Presentation - 2001.07.23, JBMpage 28

  29. Where ? Always at the inlet of the evaporator T-TE 2 Product Presentation - 2001.07.23, JBMpage 29

  30. Recommendations ! Adjust if you want to optimize evaporator performance Adjust if the TEV is hunting T-TE 2 Product Presentation - 2001.07.23, JBMpage 30

  31. SIZING THE T/TE2 The Catalogue Way The Electronic Way T-TE 2 Product Presentation - 2001.07.23, JBMpage 31

  32. Hot Stamped Brass Body Metal to metal push pin/guide Stainless steel bulb Stainless steel capillary Stainless steel capsule and diaphragm Laser welding Laser engraving Double contact bulb Eight interchangeable orifices Stainless steel seat and cone Generous inlet filter Six charge versions (Range/MOP) Automated production (ISO 9002) The Sales Features T-TE 2 Product Presentation - 2001.07.23, JBMpage 32

  33. The Competition • Primary : • Alco TI(E) • (T2 Copy) • Egelhof TEW • (T2 Copy) • Flica TMV • (T2 Copy) • Sporlan Q • Secondary : • FAS • (T2 Copy) • Parker • Saginomiya • Fuji Koki • Teddington TED • (T2 Copy) T-TE 2 Product Presentation - 2001.07.23, JBMpage 33

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