About Product:Valve is used to open and close the pipeline, control the flow direction, adjust and control the parameters of the transmission medium (temperature, pressure and flow) pipeline accessories. According to its function, can be divided into shut-off valve, check valve, regulating valve. The valve is the control part in the fluid transportation system, it has the function of cutoff, regulation, flow diversion, prevention of countercurrent, voltage stabilization, diversion or overflow pressure relief and so on.