SMART VOV - High Performance Orifice Tubes
Now your customers can have:
- 5° - 12°F colder air (at hot idle)
- Reduced compressor load and extended compressor life
- Improved performance when converting from R-12 to R-134a
- Improved city fuel economy & emissions
- Improved performance in factory R134a systems
How it works
The Smart VOV (variable orifice valve)
uses system pressure and refrigerant
flow to move a metering piston relative
to a fixed opening in the sleeve.
The piston movement is resisted by an attached spring.
When idling at high ambient temperatures, the piston shifts to a smaller
metering area similar to a TXV. This compensates for the reduced compressor output
and increases the cooling performance. The Smart VOV also has a unique re-open feature which
reduces compressor pressure for severe idle conditions.
At highway speeds, the Smart
VOV operates on a large orifice. The net result
is better performance than a TXV without the
complexity or reliability concerns.
TXV, which has constantly moving parts and small
internal clearances, the Smart VOV is stationary
during most operating conditions and has large
internal clearances. Its low friction floating
design insures smooth operation and extremely long
Click here for the VOV application guide