9759 A/C VARIABLE ORIFICE VALVE TUBE SMART VOV EXPANSION VALVE AC - CONDENSOR MOUNT 2513533c1

Item Number: AP9759Core Charge: $0.00Manufacturer: AirpartsDescription: OEM # 

International Navistar 2513533c1 AC Delco 1550121

/ New Orifice Tube

Shipping Weight: 0.4 oz

 1 Year Warranty 

 

These are 1 of the greatest items invented. We have sold and used these with nothing but great performance and extreamly happy cunstomers.

Enhanced A/C Performance
With The Smart VOV™

2513533c1

For R-12 & R-134a Systems 

 

Now you or 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 

       

  The Smart VOV was successfully tested for over two years in the 
               Desert in severe use vehicles (for more than 2,000,000 miles).
               U.S. Automakers are proving the Smart VOV as a replacement
               For the orifice tube.

  Tech talk - 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.

Unlike a 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 life.

• The Smart VOV creates colder (5°-12°F) a/c discharge air by automatically reducing the orifice area at low compressor speeds, such as at idle and in city traffic.
• During extended idle periods in hot climates, the Smart VOV re-opens to a larger orifice size at high head pressures to maintain compressor operation (reducing compressor on/off cycling). This unique re-open feature also helps to increase compressor life by eliminating dangerously high head pressures that can occur with fixed orifice tubes.
• The Smart VOV opens to a large orifice size at highway speeds to maintain pressures comparable to or lower than a stock (fixed) orifice tube.
• Compressor life can be significantly increased because of the reduced compressor load. Police vehicles equipped with Smart VOV and based in severe heat desert locations experienced a significant (tenfold) reduction in compressor failures (compared to vehicles using stock orifice tubes).
• The Smart VOV can improve fuel economy and reduce exhaust emissions, especially in city driving conditions (initial independent lab testing show 10-25% lower exhaust emissions in the new EPA mandated SC03 test).

The Smart VOV is a "drop-in" replacement for OEM orifice tubes in CCOT systems. 

Applications:

Fits all systems with a Orifice Valve regardless of the color.