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Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation - 2001.07.23, JBM page 1 T/TE2 Thermostatic Expansion Valves.

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Presentation on theme: "Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation - 2001.07.23, JBM page 1 T/TE2 Thermostatic Expansion Valves."— Presentation transcript:

1 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 1 T/TE2 Thermostatic Expansion Valves

2 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 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

3 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 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

4 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 4 Multi room installation

5 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 5 T2 system pipe diagram

6 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 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)

7 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 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

8 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 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 Standard program: R22 R12 R134a R502 R404A/R507 NOT: R410A Special program: R23 + various R407C REFRIGERANTS & RANGES

9 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 9 T/TE 2 THERMOSTATIC EXPANSION VALVES

10 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 10 Type :T2 / TE2 RefrigerantsCFC / HCFC / HFC Media temp. o C ,Range N ,Range NM ,Range NL ,Range B Max. bulb o C100 installed MWP / PB bar34 Max. test pressure37 TECHNICAL DATA

11 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 11 T/TE 2 Cut-away Model

12 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 12 Label

13 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 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

14 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 14 Compressor not running. TEV closed. 4.7 bar bulb pressure 0.7 bar spring 4.7 bar 4°C 4.7 bar evaporator pressure Valve in equilibrium 4°C 4.7 bar R22

15 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 15 Thermostatic expansion valve is now operating at constant superheat bar bulb pressure 0.7 bar spring 3.8 bar - 1,05°C 3.1 bar evaporator pressure Valve constant opening degree -6°C 3.1 bar R

16 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 16 Thermostatic expansion valve operating at slightly reduced load bar bulb pressure 0.7 bar spring 3.79 bar -1.1°C 3.1 bar evaporator pressure Valve closing little -6°C 3.1 bar R

17 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 17 Thermostatic expansion valve operating at increased load bar bulb pressure 0.7 bar spring 3.85 bar ° C 3.1 bar evaporator pressure Valve opening -6°C 3.1 bar R

18 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 18 The compressor is stopped, TEV positively closed. 4.7 bar bulb pressure 0.7 bar spring 4.7 bar 4°C 4.7 bar evaporator pressure Valve closed during standstill 4°C 4.7 bar R

19 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 19 Superheat Valve Capacity Reserve Capacity Rated Capacity Full Open Capacity SS OS OPS Capacity / superheat relationship

20 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 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

21 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 21 Adjusting the TEV

22 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 22 Adjusting the TEV

23 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 23 Changing the Orifice

24 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 24 Changing the Orifice, solder version

25 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 25 Using the T/TE 2 Why ? When ? How ? Where ? Recommendations !

26 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 26 WHY ? To be able to accurately inject the amount of refrigerant required into the evaporator.

27 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 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)

28 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 28 HOW ? By mounting the TEV in the refrigeration circuit with any necessary adjustment

29 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 29 Where ? Always at the inlet of the evaporator

30 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 30 Adjust if you want to optimize evaporator performance Adjust if the TEV is hunting Recommendations !

31 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 31 SIZING THE T/TE2 The Catalogue Way The Electronic Way

32 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 32 The Sales Features 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)

33 Refrigeration and Air Conditioning Expect more from us T-TE 2 Product Presentation , JBM page 33 The Competition Primary : - AlcoTI(E) (T2 Copy) - EgelhofTEW (T2 Copy) - FlicaTMV (T2 Copy) - SporlanQ Secondary : - FAS (T2 Copy) - Parker - Saginomiya - Fuji Koki - Teddington TED (T2 Copy)


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