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SIEMENS Equipment Specifications PTI Series Softener (72" -120" Diameter- High Flow Series) GENERAL SYSTEM DESCRIPTION General Description High Purity Solutions Standard Products The softening units are designed and manufactured for industrial applications in sizes from 72" to 120" diameter tanks. The units are available in three configurations (Simplex, Duplex, and Triplex) and with three packaged options (Plus, Deluxe, and Select). Duplex and triplex configurations have multiple modes of operation to maximize operational flexibility. These units are rugged, pre- engineered units that minimize expensive installation and start-up costs. They require simple utility connections, media loading, and minor configuration for immediate online service. Duplex and triplex configurations are shipped as individual units in order to minimize installation labor while maximizing orientation flexibility. The softener's simple design maximizes the efficiency and repeatability of the unit during the service and regeneration modes in order to provide a truly reliable water treatment unit. Mechanical Description The softener consists of steel pressure vessel(s) that contain C -211 cation resin along with 2 support bed layers. The pressure vessels are sandblasted, lined with an NSF approved material, and painted with a durable epoxy coating. The piping and tank internals are constructed of schedule 80 PVC or Schedule 10, 316L stainless steel. All automatic valves are actuated pneumatically. Adjustable travels stops are included on the service, backwash, rinse outlet, and brine valves in order to set the flows based on system requirements. A relief valve sized for thermal expansion pressure relief is also supplied on each tank. Four structural steel legs, designed to meet International Building Code (IBC) to meet the requirements in 98% of North American installations, support each vessel. All interconnect piping on duplex and triplex systems are by others. A brine pumping and dilution skid is provided. The unit is provided with sch80 PVC piping. A customer supplied brine silo or equivalent supplies a 26% brine solution to the inlet of the brine pumping system. A separate water source (preferably softened water) supplies the dilution side. A CRT series Grundfos vertical pump boosts the 26% brine solution pressure. Two rotameters allow the flow of each fluid to be accurately set for the dilution of the 26% brine solution to desired concentration (6 -10 %). The customer must connect the brine skid to the softener with schedule 80 PVC or similar corrosion resistant material. PTI Series Softeners Page 1 Rev. 1, February 2009 S5131 -020 251 -51