Valve cone burning caused by bad valve cone seal leakage, overheating and burning will ultimately make the valve

Valve cone burning caused by bad valve cone seal leak, will ultimately make the valve overheating and burning. Causes more bad seal seat centerline offset, tilt or seat, the valve is deformed, so that the sealing cone is bad; valve tap coke or slag accumulation  Double ferrule fitting , the sealing cone indentation and gradually expand to form pits; accumulation of  Needle valve  and shedding forming a trench; carbide surfacing impact stress and thermal stress generated by joint action of the valve seat and cracks occur; valve clearance cold too small, so that the valve can not be seated;

No wear ball check valve with a single ball series and multi-ball series

Ordinary lift or swing check valve valve to overcome gravity and friction between the deputy campaign to open the valve , so there is flow resistance pressure, work pressure, hoist less effective and other shortcomings. No wear ball valve rotating shaft and because  Instrument valve manifold  relative movement between the sleeve friction , no separate power control and manual operation , only by the pressure of the media is to promote closing parts - rubber ball and turn it on , the pipeline the reflux  Needle valve  the rubber ball to achieve the valve closes. As rubber ball has good flexibility , reducing the pipe shock, vibration and noise generated therefrom , and flexible opening and closing , the flow resistance coefficient is small , low cost products . Two structural characteristics of wear- ball series ball  Double ended cylinder  and multi- ball series two kinds of structure type . Valve consists of body, seat , rubber ball and cover and other component parts. When you turn on the pump, the role of the media , the rubber ball out of the seat to move forward , move a certain distance dome block rubber ball , the valve opens . After stopping the pump or water inside the pipe back pressure pushes the rubber ball backwards , automatic compression rubber ball seat to seal the valve closes .