HINTS AND RULES / UTILITIES, COMMON SPECIFICATIONS
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Utilities, Common Specifications

  1. Compressed air at 45, 150, 300 or 450 psig.

  2. Instrument air at 45 psig, 0ƒF dewpoint.

  3. Steam: 15-30 psig, at 250-275ƒF; 150 psig, at 366ƒF; 400 psig, at 448ƒF; 600 psig, at 488ƒF, or with 100-150ƒF of superheat.

  4. Cooling water: supply from a cooling tower is at 80-90ƒF; return is at 115-125ƒF; return seawater at 110ƒF, return tempered water or steam condensate above 125ƒF.

  5. Cooling air supply at 85-95ƒF; temperature approach to process, 40ƒF.

HINTS AND RULES
Drying and SolidsConveyors for Particular SolidsCooling TowersCompressors and Vacuum PumpsCrushing and Grinding
Extraction, Liquid-LiquidCrystallatisation from SolutionFiltrationHeat ExchangersMixing and Agitation
Particle Size EnlargementpipingPumpsReactorsRefrigeration
Size Seperation of ParticlesUtilities, Common SpecificationsVessels (Storage Tanks)

The information is arranged by commonly recognised categories. In some instances, definitions and general statements have been included for clarity.