Set of 2 service access valves, 11.5 cm long copper for refrigerant, air conditioner charging needle access valves (thick version)

Reliable Material: Made of solid brass and copper structure, robust, pressure- and vibration-resistant. Perfectly adapts to the operating conditions of the refrigeration system, ensuring a stable seal and long service life for the refrigerant hose connection. Wide Application: Ideal for the installation, troubleshooting, and maintenance of various air conditioning and refrigeration systems. Excellent for refrigerant charging, system testing, and daily repairs; fits most conventional air conditioning and refrigeration equipment models. Smooth Control: The valve stem is an independent valve that, when opened, introduces gas into the chamber, helping to reduce turbulence and pressure fluctuations. This design prioritizes system control stability, aiming for smooth regulation of the average flow rate, which can positively impact the overall operational efficiency of the system. Anti-slip Clutch Nut: The deep knurled surface effectively increases friction. Enables quick hand tightening and locking without additional tools, simplifies installation steps, and prevents damage caused by improper tool use. Multiple specifications: Available in standard length, extended length, and thick version to suit various installation scenarios. Supplied with 2 pieces per pack, meeting the need for paired use in refrigeration maintenance, convenient for replacement and spare use.