1. The pump body, impeller, shaft, frame, motor and other components are composed of precise structure and easy movement.
2. The pump body is equipped with a gas water separation chamber connected to the outlet, and a water storage chamber connected to the reflux valve. When self-priming, the return valve opens automatically, and the return valve body has a conical nozzle facing the impeller, which helps to increase the self-priming speed.
3. A rubber valve plate is installed between the inlet joint and the pump body, which automatically closes when stopped, keeping the pump full for the next liquid injection.
4. At the lower end of the pump inlet, there is a discharge port. Twisting the open port cover allows the liquid material inside the pump to be discharged completely.
5. Rubber sealing rings are used at both the outlet and inlet, and mechanical seals are used to seal the shaft.