Professional Control Valve for air conditioner safety systems. This grade metal valve is designed for R410/R22 maintenance and features an antislip knob for comfortable operation during extended use, helping to prevent hand fatigue when working with refrigerants. Key features and benefits Function and reliability grade metal safety valve built for R410 and R22 maintenance Antislip knob provides secure, comfortable operation over long work sessions Durable construction aimed at reliable performance in professional and home settings Compatibility and configurations Three configuration options to cover different refrigerant setups Type A: 22 to 22 plus 22 to 410 Type B: 410 to 410 plus 410 to 22 Type C: includes both Type A and Type B for maximum system compatibility Material and durability Pure copper construction delivers heat transfer Strong corrosion resistance for longterm durability in HVAC applications Suitable for professional technicians and home maintenance enthusiasts alike Performance and control Precisely engineered flow regulation for accurate control of refrigerant flow Enables safe management of the extension and retraction of the ejector pin Maintains consistent performance across a range of temperatures Use scenarios Scenario 1: R410 or R22 maintenance on split systems. Select Type A, Type B, or Type C to match the refrigerant configuration and achieve compatible connections with the system being serviced. Scenario 2: Professional HVAC service requiring precise flow control. Use the valve's accurate flow regulation to manage refrigerant flow and ejector pin movements during charging, recovery, or diagnostic procedures. Scenario 3: Home maintenance tasks requiring durable materials and reliable performance. The copper construction and corrosion resistance provide dependable operation for hobbyists performing routine refrigerant work. Note: All specifications, models, and features are maintained as described to ensure consistent compatibility and performance with R410/R22 refrigerant maintenance scenarios.