Thermostatic Expansion Valve Type TV/TVE

Model Series

APPLICATIONS
The expansion valves perceive the superheat of gas refrigerant in the evaporator's outlet via sensing bulb, thus auto regulate the refrigerant flow that enters the evaporator.

Therefore the valves are especially suitable for liquid injection in "dry" evaporators, where the superheat at the evaporator outlet is proportional to evaporator load.

These thermostatic valves control the superheat of refrigerant vapor at the outlet of the evaporator, act as a throttle between the high pressure and the low pressure sides of refrigeration systems and ensure the refrigerant flow rate into the evaporator exactly matches evaporation's rate of liquid in the refrigerant.

 The valve's body includes a laser - welded, non-replaceable steel power - head which significantly reduces power-head failures and preserves the diaphragm's integrity, the primary cause of a failure. All identification information is laser engraved on the power-head for durable identification - no paper labels to fall off the valve.

FEATURE

• Hybrid injection technology is applied to sensing bulb, with the charactheristic of equal superheat during the whole temperature range, ensures the utilizing ratio of evaporator's thermal conduction are not be reduced in low temperature status, and makes the temperature of the position of valve body and sensing bulb not limited.
• Laser welded diaphragm with large diameter eliminates disturbances to the valve and provides smoother valve control
• Internal or external equalizer, the external pressure equalizer eliminates the influence resulted from the loss of evaporator pressure
• Constant superheat across wide application ranges
• Interchangeable orifice assembly with dirt protection strainer
• Sensing bulb
• Easy installation
• Good thermal conduction between pipes and sensing bulb
• Max testing pressure : 36 bar = 522 psig. Allowable working pressure : 28bar =406 psig