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SECTION 2 <br />NATURAL GAS COMPRESSOR SYSTEM <br />1.1 Acceptable Manufacturers/Packagers: <br />A. ANGI with starter panel and communication panel <br />B. CMD with starter panel and communication panel <br />C. Or approved equal <br />1.2 Design Conditions <br />• Inlet Pressure 15-40 psig (regulated) <br />• Outlet Pressure 4500 psig <br />• Flow Rate—400SCFM <br />1.3 The compressor shall be electric -driven and specifically designed to compress natural gas. No <br />converted air compressor shall be used. <br />1.4 The compressor shall be designed for automatic starting, unloading, blowdown, idling, and <br />shut off and shall be furnished with a suitably sized gas recovery system to feed blowdown <br />gas back into the system. <br />1.5 The compressor shall be equipped with suction and discharge automatic (motor or solenoid <br />operated) isolation valves and check valves. <br />1.6 Compressor bearings and journals shall be lubricated by a pressure or splash lubrication <br />system. Cylinders may be splash lubricated or of a non -lubricated design and shall be air- <br />cooled. System shall be provided with low oil level or pressure alarm or shut-off. <br />1.7 Each stage of compression shall be protected from over -pressurization with a suitably <br />sized relief valve. All relief valves shall be ASME-rated and stamped. Relief valves may be <br />connected to a common vent header terminating above the roof of the compressor <br />enclosure at minimum of 12 feet above grade (vent stack and stack supports [15 feet, if <br />needed] shall be furnished with compressor). <br />1.8 Compressor shall be either belt or direct drive. Belt drive assemblies shall include adjustable <br />motor mountings and shall have suitable guards on all moving parts per OSHA and Cal - <br />OSHA requirements. <br />City of Santa Ana - RFP 20-095 <br />CNG Fuel Station: Design, Build, Operate and Maintain <br />18 <br />