Operation Principle
The coupling includes a spring-loaded locking collar and internal poppet valve. When the matching male plug is inserted, the collar retracts and the valve opens to allow fluid flow. As soon as the plug is removed, the valve closes automatically to prevent leakage and contamination. The swivel joint allows the hose or adapter to rotate freely without stressing the connection. This design enables fast, safe, and low-maintenance coupling and uncoupling even under pressure.