The valve stem is a critical component of the valve, used for transmission. It is connected to the actuator or handle, directly driving the valve core to move or rotate beneath it, thereby achieving the opening and closing or adjustment of the valve.

Valve stem features

The valve stem is not only a moving and load-bearing component but also a sealing part during the valve opening and closing process. It is simultaneously subjected to medium impact and corrosion, and also generates friction with the packing. Therefore, when selecting valve stem material, it is essential to ensure it has sufficient strength, good impact toughness, scratch resistance, and corrosion resistance at the specified temperature. The valve stem is a wear item, and attention should be given to the machinability and heat treatment properties of the material when choosing it.

Common material for valve rod

Copper Alloy

Carbon Steel

3. Alloy steel

4. Stainless Steel

5. Chrome Steel Bearings