the packing device material is usually rubber or PTFE plus copper

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The sealing device is the key component of the valve sealing

The sealing device is the key component of the valve sealing

The sealing device of  the valve is the key component to ensure the sealing performance of the valve, which usually consists of sealing ring, packing and so on. the device is used to fill in between the valve stem and bonnet to prevent fluid leakage.

Key words:

sealing device

the valve sealing

The sealing device of valve usually consists of sealing ring, p

the packing device material is usually rubber or PTFE plus copper

butterfly valves

gate valves

silent check valve

swing check valve

air valve