fully welded body forged ball valve

  ZIFA-NP soft seated, trunnion mounted, side-entry type ball valves are specially designed to provide a long life of reliable service with inexpensive maintenance. However, proper and regular operation and maintenance will extend the life of the valves. This manual contains instructions for the installation, use and maintenance of the following ZIFA-NP ball valve side-entry types: ? WB1 model: valve with a roll-forged, welded body type. ? WB1 model: valve with a special-forged, welded body type. ? BB1 model: valve with a roll-forged, tree-pieces, split-body type. End user’s personnel can normally perform most of the instructions contained in this manual. Anyway, ZIFA is ready to provide a complete technical assistance upon request.