Gate Valves VS Knife Gate Valves
While gate valves and knife gate valves share many similar characteristics, there are some fundamental differences that set them apart. While knife gate valves and gate valves share many similarities – they're both used in on-off applications, involving slurries and other viscous media – there are some noteworthy design variances to consider when weighing up which type of valve would be best suited for your application. What Makes Them Similar? Gate and knife gate valves are primarily for on/off service. Using these types of valves to regulate flow is not recommended because when fluid pushes against a partially closed gate vibration occurs, eventually wearing and eroding the seat and disk. For that reason, these types of valves should be either completely opened, or completely closed. These valves are also designed to open and close slowly to protect from the effects of water hammer. Both types of valves can be found in applications that involve: • Sl...