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C. Fittings 2" and under shall be threaded malleable iron, class 150, ASTM 1197. Larger fittings shall be butt weld type ASTM A234 WPB of the same wall thickness as the adjoining pipe. D. Flanges shall be forged steel, slip-on or weld neck. raised face, ASTM A- 1 05, bored to match the I.D. of the pipe. Flange ratings shall be as required for the design of the piping system. E. Welding and welder qualifications shall conform to the requirements of the ASME Boiler and Pressure Vessel Code or AP! Standard 1104. Filler metals shall be selected in accordance with AWS or ASTM Standards. F. All electrical systems for all electrical equipment shall be furnished and installed on the skid. Electrical construction shall be in accordance with N FPA 52 and N FPA 70 for Class I, Div ll, Group D. Terminal strips shall be furnished with all internal wiring complete to these terminal strips. Electrical control panel(s) shall be waterproof NEMA 4. Power required shall be 120 Volt, I phase, 60Hz. Provide a separate grounding lug on the skid. G. Painting: Skid, equipment, piping and all other ferrous materials which are not insulated shall be primed and painted. A minimum of one primer and two finish coats are required. One quart of touch up paint to match the finish shall be furnished with the equipment. 1.7 Instrumentation: Provide a continuous dew point monitor with selectable digital dew point indication in degrees C or F at the dryer control panel. Moisture sensor shall be mounted at the dryer outlet to verify the outlet gas dew point. Provide two alarm lights: one for deteriorating dewpoint performance and one for regeneration required. Provide two set of dry alarm contacts for a remote signal. City of Santa Ana- RFP 20-095 CNG Fuel Station: Design, Build, Operate and Maintain 25