1. Applicable to refrigerant filling, such as filling nitrogen gas. helium gas and compressed air, into refrigerator and air conditioner.
Special designed single direct valves at both ends
2. After connected and locked by balls.check valves open automatically and maintain the flow smoothly at rated working pressure
3. When the couplings are disconnected.valves are closed automatically to prevent air leakage.
4. - R12* R22, R404A, R407C, R410A, R134A, R152A. R600A.
Suitable medium: R12, R22* R404A, R407C» R410A. R134A* R152A, R600A.etc