American standard VTON filter for the management of pipeline in addition to slobber conveying medium: hot and cold water, sewage and other mechanical impurities,especially the boiler circulating pump is needed before theproducts. Usually the filtering net mesh size of 18-30 meshin order to remove the mechanical impurity in the system,so that the equipment and pipeline from clogging andwear. Working pressure 16-40Kg/Cm2, the rated flowpressure loss is 0.05-0.1 m water column