1. Separator inlet shall be FRP plain pipe end unless otherwise specified. Factory-installed, threaded half couplings or flanged fittings are optional alternatives. 2. Location shall be as shown on separator drawings. D. Effluent Pipe: 1. Separator discharge shall be FRP plain pipe end unless otherwise specified. Factory-installed, threaded FRP half couplings or flanged fittings are optional alternatives. Discharge piping shall contain a siphon break vented to atmosphere. 2. Location shall be as shown on separator drawings. E. Vent 1. Separator shall be furnished with a vent(s) sized to maintain the separator at atmospheric pressure under normal operating and pump out conditions. F. Fittings: 1. Single fittings intended for vent, product and sludge removal, sampling and oil level monitoring shall be located on the top centerline of the separator or in a manway lid. 2. Duplex fittings shall be located on the top centerline of the separator. 3. All standard NPT threaded fittings shall be constructed of carbon steel unless otherwise specified. 4. All standard NPT threaded fittings shall be half-couplings, and of 2inch, 4-inch or 6-inch diameter. Reducers are to be used for smaller sizes where shown and provided by contractor. 5. Steel NPT fittings shall withstand a minimum of 500 foot-pounds of torque and 1,000 foot-pounds of bending. 6. FRP nozzles (if provided) shall be flat-faced, flanged and gusseted and conform to ANSI B16.5 150# bolting pattern. 7. Interstitial space monitor fitting(s) or interstitial space monitoring reservoir fitting shall consist of a 4-inch NPT fitting. 8. All threaded fitting tolerances shall be in accordance with the ANSI standard for each fitting size. G. Sludge Containment: 1. Separators shall have a FRP sludge baffle to limit migration of solids and sludge to the discharge piping. H. Lifting Lugs: 1. All separators shall have lifting lug(s) that are capable of withstanding weight of separator with a safety factor of 2:1.
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