Nissens 999220 AC Expansion Valve Thermal Block Type

The Nissens 999220 is a precision-engineered thermal expansion valve designed to regulate refrigerant flow and maintain optimal air conditioning system performance. This critical AC component controls refrigerant superheat parameters to ensure proper thermal balance and efficient cooling operation.

Key Features:

• Block-type valve technology for reliable refrigerant control
• Includes O-rings and mounting bolts for complete installation
• Comprehensive testing for pressure performance, tightness, and set-point accuracy
• Specially designed power element with optimized gas charge formula
• Thorough welding process to eliminate refrigerant leakage
• High-grade materials and precise inner finish for long-term durability
• Manufactured to OE matching standards for first-time-right installation

Nissens thermal expansion valves undergo rigorous validation testing including outlet pressure testing, operating pressure verification, durability testing, and leak testing to ensure reliable performance. The valve's power element, diaphragm assembly, and precision components work together to provide stable refrigerant regulation under varying operating conditions. Cross-references OE number 1K0820679.