CNG-92200H Revised 08-00 00-02-0149 FWMurphy Control Systems for Alternative Fuel Fueling Stations
Continuing a Tradition F WMurphy has been in the business of providing quality controls to the engine, pump, and compressor market since 1939. Most of the controls in use today were pioneered by Murphy to meet the needs expressed by OEM’s, packagers and users. As we move into a renewed era of environmentally clean burning Alternative Fuels, We understand your requirements, we listen to your concerns, and most importantly, we respond.
Standard Control Systems for CNG Fueling Stations for the small fueling facility...monitoring and controlling electric motor driven compressor. LEVEL I Designed LEVEL I is an entry level controller system designed for the small fueling facility requiring only basic start and stop of the compressor and monitoring basic shutdown functions. It monitors and controls the electric motor driven compressor and the system loading and unloading devices.
LEVEL II LEVEL II is a mid-range system designed for the larger stations with more shutdown inputs being monitored than the LEVEL I control system. The LEVEL II system performs all the functions of the LEVEL I, plus is available for both single or dual electric motor or engine drive applications. A SELECTRONIC® Micro-Controller™ monitors control functions and displays status and faults in a two line alphanumeric LCD display.
Monitor and control the entire fueling system including the Priority/Sequential valve operations. Communications modem on-board. LEVEL III LEVEL III is a comprehensive system designed to monitor and control the entire fueling system. It is available for both simplex or duplex electric motor or engine driven systems. The Murphy SELECTRONIC® MicroController™ sequentially controls the compressor operations.
Custom Valve Panels Priority/Sequential Valve Panels Murphy offers Priority/Sequential Valve Panels complete with Murphy Pressure Transmitters for use with the LEVEL III control system or the Murphy StandAlone Priority/Sequential Controller. These panels were designed to fail close valves for optimum operation. These panels can be provided on a plate or in a free standing NEMA 3 weatherproof enclosure. Valve Panel for 2 fast fill drops, 1 slow fill header, and 3 bank cascade storage.
Layout of Typical CNG Fueling Station LEVEL I or LEVEL II Control System Compressor Driver Slow Fill Header PT Optional Bypass Valves (for fast fill) LEVEL III Control System Priority Valves H DOT Cascade PT M PT Priority/Sequential Valve Panel* L Storage Tanks PT Priority/ Sequential Valve Control Panel Sequential Valves (2-drop panel) PT PT Dispenser† * These items are not included in a LEVEL III control system. Order seperately.
