YFL Slow closing hydraulic butterfly check valves are used as butterfly valve and check valve. With hydraulic actuator, hydraulic power pack and electric control cabinet, the butterfly check valves are hydraulic controlled to close slowly to protect the pumps.

The hydraulic power pack and electric control cabinet can be equiped on the valve. When there is not enough installation space, the hydraulic power pack and electric control cabinet can be seperated from the slow closing butterfly check valve.

The slow closing butterfly check valves can be equipped with counterweight, when the installation space is limited, the accumulator can repalce the counterweight with less volume.

Totally one DN1600 and three DN1800 slow closing hydraulic butterfly check valves with counterweight are tested, painted, packed and delivered in one 20 in container and one 40 in container to Egypt.