Skid mounted sodium Hypochlorite Generation Package (with 100% standby) The system shall be sized to continuously dose active chlorine into seawater flow of 400 gpm from firewater pumps at 2 ppm concentration. Skid Inlet Water Pressure: 105 to 150 PSIG Design Temperature: 120 F The system shall consist of complete electrolytic sodium hypochlorite generators from seawater on a once through basis. Each unit shall have hypochlorite production turndown capability from 10% to 100% of specified design capacity Due to limited space, system shall be of compact construction. (Approx. 2m x 5m) The system shall include: - Electrolytic cell assembly. - Transformer/ Rectifier Unit, dry type transformer, air cooled, thyristor controlled rectifier, suitable for 480VAC/3PH/60Hz power feed. System shall be capable of diluting Hydrogen generated to safe levels and venting it to a safe location. - Main Control Panel; PLC based; hosed in 316 stainless steel IP56 (NEMA 4X) enclosure, designed to provide necessary pushbuttons, run lights, alarms, indicators, relays and control circuitry as required for safe operation of the system; including HMI touch screen interface, with both RS-485 and Modbus TCP/IP interface network cards for communication with DCS. - All required process piping, valves, pressure regulators, safety valves, etc. Materials shall be suitable for offshore application, preferably CPVC SCH. 80. - Shall be supplied with booster pumps and flow regulators for the inlet seawater when required. - Inlet strainers shall be supplied. One automatic backwash and one manual. (D-070/071). - Supplied with pumps to inject the hypochlorite into a firewater stream with a pressure of 1137 kPa (165 psig). - Assembly of the units on structural steel skids, with APCS-1D (SAES-H-004) coating suitable for corrosive, hot, humid, salt laden offshore environment, lifting lug and grounding lugs. - Show More