0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the different between exv and txv?
Difference between txv and exv.
Is it ok to undersize a txv?
No, it is not.
What is a dual port TXV?
Dual port TXV used when system need a large TXV for short periods of time. Dual-port valves have two independent capacities larger port for periods of high load smaller port for periods of normal load TXV capacity is doubled when larger port is open all the way.
Which is not a pressure or force on a txv diaphragm?
spring
What is meant by a dual-port txv?
step motor
What is meant by a dual port TXV?
step motor
Where is the bulb of the TXV mounted on?
end of the evaporator on the suction line
What are three factors that determine the capacity of a TXV?
The capacity of a TXV differs due to orifice size, pressure difference between high and low side, and the temperature and condition of the refrigerant in the liquid line.
When do some txv require an external equalizer?
when exes of pressure drops
What should the sub cooling be on a txv 404a refrigerant freezer?
42
What is the purpose of the external equalizer on a TXV?
The purpose of the External equalizer on the TXV is to compensate for the pressure drop in the evaporator coil , This is done since the superheat calculation is based on the difference in the Saturation temperature corresponding to the Suction pressure (Measured after the coil) and the actual suction line temperature. Now, in a TXV measurement of actual line temperature is accomplished by using the Sensing Bulb and the Measurement of the Suction pressure by the External Equalizer of the TXV. The opening/Closing of the Expansion valve is controlled by the setting of the superheat which is governed by the setting of the Spring.
Equalizing lines should be located in multiple condenser and compressor applications where Between condenser and evaporator coils or Near the TXV or Between compressors and condensers or None of them?
oppisite side of txv sensing bulb on outlet of evaporator (suction line)
