Instrument needle valve structure principle of

Key Instrument needle valve seal structure is due to the way the valve drive using triggered, if the valve actuator seal structure to improve the way you can solve the leakage problem and lead to Double ferrule fitting the loss of technical issues valve actuator functions. Mechanical seal is a dynamic seal, widely used in the chemical industry. Instrument needle valve structure is simple, small size, resistance to fluid flow is also small, problems are open or closed too quickly, it will occur in the pipeline water hammer (water flow rate in the pipe when the pressure Instrument valve manifolds is reduced suddenly change). Instrument needle valve and thus should not be taken on the backbone tube valve can be used in the dry end of the branch pipe, or for wash-use, flushing sewage good consequences.