Single copper air conditioning valve, 5 pieces, 7/16-20 UNF thread, for R22/R12 refrigerant circuits

🔧 General Description This set of 5 air conditioning check valves is designed for demanding professionals and DIYers. Robust, leak-proof, and easy to solder, they allow for precise charging, draining, or pressure control on R22 and R12 refrigerant circuits. Ideal for home repairs, HVAC maintenance, and VRV/VRF systems. 📐 Technical Specifications Material: Thick, erosion-resistant copper + brass Connection: 7/16″ – 20 UNF (European standard) Copper tube length: 90 mm Total length: 120 mm Tube thickness: 0.6 mm Unit weight: ≈ 120 g Contents: 5 complete valves (core + cap + extractor included) ⚡ Installation Quick and intuitive installation by capillary soldering onto copper pipe. No special tools required. The 7/16″ 20 UNF connection ensures an immediate seal after installation. Perfect for workshop or on-site work. ✅ Use: Use these valves for high vacuum, refrigerant charging, pressure measurement, or safe draining. The integrated core and cap protect against leaks and contamination—saving time and increasing reliability on every job. 📦 Other information: Designed specifically for residential and commercial refrigeration systems. Compatible with R22, R12, and other common refrigerants. High-quality finish, guaranteed corrosion resistance. Plug and play—no adjustments or setup required.