The core invention of this product addresses the shortcomings of existing technology by providing a dual-column switching mesh changer. It employs a switching method for mesh replacement and filling material. The conical cylinder ensures high-pressure sealing without leakage, with low manufacturing costs, excellent filtration effects, ease of operation, and minimal pressure fluctuations, allowing for uninterrupted mesh replacement. Each filtration chamber is equipped with a telescopic drive mechanism for the filter column. The switching valve between the two filtration chambers is equipped with axial distribution ports - port one and port two. As the switching valve reciprocates along the axis, the two filtration chambers are connected to the feed port through port one and port two, respectively, for mesh switching. The two discharge ports have internal interlock valves to prevent cross-channel mesh replacement. The unique appearance design adds greater value to its use.

TECHNICAL PARAMETERS