Nozzle filters are devices used where distributed filtration is needed and there is no need to use long cartridges which causes waste of vessel capacity along with high cost. The devices are installed either on the particles bed support plate as a particle pass preventer or above the bed as distributer. The design pressure and temperature, allowable pressure loss and distribution of flow in section of vessel are effective parameters in design of the device.Nozzle filters are manufactured using V-Wire Screen as the main element with stainless steel material and another type made from plastic.