The structure of the bellows single seat regulating valve is simple, generally using top guidance, S-shaped flow channel, high adjustment accuracy, and low cost. The upper valve cover adopts a bellows sealing structure, which can eliminate the possibility of process medium leaking outward from the clearance of the valve stem movement; The bellows component with anti rotation structure is connected with the valve core, which can prevent the bellows component from being damaged due to torsion when adjusting the stroke during assembly. Due to the deformability and excellent aging resistance of the bellows element itself, it completely overcomes the weaknesses of the packing aging and temperature sensitivity that usually exist in the packing seal valve.

Design Features

Strong flow capacity and low flow resistance

Large adjustable range, high adjustment accuracy

Large guiding area, good vibration resistance

Bellows component and packing form a double sealing structure