R016600x

2.3 CLAYTON STEAM GENERATORS EQUIPPED WITH HEAVY OIL FUEL SYSTEM Heavy Oil Fuel Specifications Clayton Burners require Heater adjustment to suit a specified viscosity. All fuel oil deliveries must have a uni- form viscosity. Limit viscosity variation to plus 10% to minus 50% for Air Atomizing Burners. The following specification covers the range of Fuel Grade Nos. 4, 5 and light No. 6 fuel oil in accordance with Commercial Standard CS-12-48 issued by the U.S. Department of Commerce and ASTM Specification D-396- 64T. Local legal limits may supersede these regulations.

Description of Supply Oil Required

Preferred

Limit

Gravity, Degrees API at 15 o C (60 o F) ................................................................ 14-26 Gravity, Specific, at 15 o C (60 o F) ................................................................. 0.90-0.97 Flash-Point, Pensky-Martens, ( o F) ................................................................... 150-230 Viscosity, Saybolt Seconds Furol at 122 o F (50 o C) (SSF) ..............................45 max. Sulfur, percent, Subject to Local Regulations .................................................0.5 max. Sediment and Water, percent by volume .........................................................0.5 max. Carbon Residue, (on 10% residuum) percent ........................................................ 5-10 Ash, percent by weight ..................................................................................0.05 max. Vanadium, parts per million .............................................................................50 max.

10 min. 1 max. 150 min. 175 max. 2.0 max. 1.0 max. 15 max. 0.10 max. 100 max.

(Approximate) Btu per gallon

High Heat Value

Low Heat Value

150,000

142,000

k cal/l

9,960

9,370

Light Fuel Oil Specifications Fuel oil conforming to U.S. Commercial Standard No. 2 or Pacific Standard No. 200 furnace oil or diesel fuel. Description of Supply Oil Required Preferred Limit Gravity, Degrees API at 60 o F (15 o C ................................................................. 30-38 26 min. Gravity, Specific at 60 o F (15 o C) .................................................................. 0.84-0.87 0.80-0.90 Flash Point. Pensky-Martens, o F ...................................................................... 160-180 130 min.-230 max. Viscosity, Saybolt Seconds Universal at 100 o F (SSU) ....................................... 35-45 45 max. Kinematic Viscosity at 68 o F (20 o C) (Centistokes) .................................... 4-9.5 max. 9.5 max. Pour Point, o F ......................................................................................................0 max. 15 max. Sediment and Water, Percent by volume ...............................................................none 0.10 max. Sulfur, Percent .................................................................................................0.5 max. 0.8 max. Carbon Residue (on 10% residuum) Percent .................................................0.02 max. 0.25 max.

R-8571 Rev. G

HOI-10

10-2004