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Thermostatic expansion valves

LSS-TV series bi-flow thermostatic expansion valves use advanced structure of bi-directional balanced port.
LSS-TV bi-flow series can be used in heat pumps, air conditions, refrigeration, liquid cooling, ice makers, bus refrigeration equipments and etc.
The application of dual headpiece thermostatic expansion valve makes the refrigeration system need fewer amounts of expansion valves, check valves and solenoid valves.


Type & data

Valve type

R134a

R22

R407C

R404A/507

Connection
Inlet×Outlet
(in.)

Equalization

Model

Nominal
capacity
(KW)

Model

Nominal
capacity
(KW)

Model

Nominal
capacity
(KW)

Model

Nominal
capacity
(KW)

LSSATV-
LSSBTV-

0.25N

1.1

0.5X

1.8

0.5Z

1.8

0.25S/P

0.9

3/8×1/2

external equalizer
1/4” flare SAE

0.5N

2.2

1X

3.5

1Z

3.5

0.5S/P

1.8

1N

4.4

1.5X

5.3

1.5Z

5.3

1S/P

3.5

1.5N

6.5

2X

7

2Z

7

1.5S/P

5.3

2N

8.8

3X

10.5

3Z

10.5

2S/P

7

2.5N

11

4X

14

4Z

14

2.5S/P

8.8

3N

13.2

5X

17.5

5Z

17.5

3S/P

10.5

3/8×5/8

5.5N

19.3

7.5X

26.3

7.5Z

26.3

5S/P

14

1/2×5/8

7.5N

26.3

10X

35

10Z

35

6.5S/P

22.8

9N

31.5

12X

42

12Z

42

8S/P

28

Nominal capacities base on +38℃ condensing temperature,+4℃ evaporating temperature and 1K liquid sub cooling at the inlet of the expansion valve. Valve pressure drop for R134a is rated at 0.41MPa.Valve pressure drop for R22, R407C and R404A/507 is rated at 0.69MPa.

Ordering

Connection

Valve code

Nominal capacity

Refrigerant code

LSSA

TV

7.5

X

LSSA: Flare SAE
LSSB: Solder ODF

Thermostatic expansion valve code

Nominal capacity (tons)

N — R134a
X — R22
Z — R407C

S—R404A
P—R507



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