Extended Crimped Metallic Core for String Wound Filters
Extended cores are traditionally used for double-open-end style filters when filter users wish to eliminate the use of a housing "V-post". V-posts serve to hold filters upright and straight in a filter housing but can sometimes create difficulties for operators during installation and removal of the filters. In such situations filter users will remove the housing V-posts and opt to use filters with extended crimped cores.
Energy producers have long relied upon string wound filters to maximize production, protect producing and disposal formations, extend injection well performance, comply with environmental regulations, and prevent equipment from fouling.