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The processing quality of the sealing surface is not good: it is mainly manifested in the defects such as cracks, pores and ballast on the sealing surface, which are caused by improper selection of...

The wear of the valve seat and valve core material will cause the valve to leak and change the flow characteristics.

The hand-operated oil pump only ensures that the pneumatic shut-off valve does not close naturally for 48h under pressurized conditions, and it may close naturally after 48h.

The connection of the input signal of the pneumatic shut-off valve: usually, check it together with the valve positioner.

The cut-off valve requires the lower the leakage, the better. The leakage of the soft-sealed valve is the lowest.

It involves a simple mechanical principle: high sliding friction and low rolling friction. The valve stem of the straight-stroke valve moves up and down, and the packing is slightly compressed, it ...

The spool of the straight stroke valve is a vertical throttling, and the medium flows in and out horizontally.

According to the stroke characteristics, the regulating valve can be divided into: straight stroke and angular stroke.

After the straight stroke control valve is in normal operation, it needs to be maintained and maintained.

The daily maintenance work of the linear travel control valve is divided into two parts: patrol inspection and regular maintenance.

Relieve stress. Various stresses due to improper installation or combination. For example, the high temperature medium produces thermal stress, and the unbalanced tightening force during installati...

Replacement of the diaphragm of the pneumatic actuator. The diaphragm of the pneumatic diaphragm actuator is stretched during operation, so it is easy to be damaged by fatigue.