ENGINE INSTALLATION & SERVICE HANDBOOK Cooling System Caterpillar


Cooling System
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1.1. Delta T-Flow Relationship
2.1. Piping Design - Flow Relationships
3.1. Pipe Dimensions - Standard Iron Pipe
4.1. Resistance of Valves and Fittings to Flow of Fluids
5.1. Flow Restriction of Fittings Expressed as Equivalent Feet of Straight Pipe
6.1. Typical Friction Losses of Water in Pipe - (Old Pipe) (Nominal Pipe Diameter)
7.1. Velocity vs Flow
8.1. Coolant Chemical and Physical Properties
9.1. Boiling Point of Coolant at Varying Antifreeze Concentrations
10.1. Protection Temperatures for Antifreeze Concentrations<SUP><FONT SIZE=-1>1</FONT></SUP>
11.1. Barometric Pressures and Boiling Points of Water at Various Altitudes
12.1. Caterpillar Diesel Engine<SUP><FONT SIZE=-1>1</FONT></SUP> Antifreeze Protection Chart (Fahrenheit)
13.1. Caterpillar Diesel Engine<SUP><FONT SIZE=-1>1</FONT></SUP> Antifreeze Protection Chart (Celsius)
14.1. pH Scale for Coolant Mixture
15.1. Temperature Regulators
16.2. New Temperature Regulators - 1330, 1355; 3606 (8RB), 3608 (6MC), 3612 (9RC), 3616 (1PD) Industrial Engines
17.1. Diagnostic Tooling
18.1. Coolant Expansion Rates
19.1. Densities of Liquids [at 60&deg;F (16&deg;C)]
20.1. Supplemental Coolant Additive (Conditioner or Inhibitor)

Delta T-Flow Relationship

Piping Design - Flow Relationships

Recommended Coolant Velocities

Jacket Water: 2-8 FT./SEC. (0.6-2.5 M/SEC.)

Sea Water: 2-6 FT./SEC. (0.6-1.9 M/SEC.)

Maximum Fresh Water Velocities for 3600 Engines

Pressurized Lines: 14.8 FT./SEC.) (4.5 M/SEC.) Max.

Suction Lines: 4.9 FT./SEC. (1.5 M/SEC.) Max.

Pipe Dimensions - Standard Iron Pipe

Resistance of Valves and Fittings to Flow of Fluids

This chart is for illustrative purposes only. Do not attempt to use this for measurement. Refer to Application Installation Guides for full scale measurements.

Flow Restriction of Fittings Expressed as Equivalent Feet of Straight Pipe

Strainers:

As a general rule of thumb, strainers should be of adequate capacity to create no more than 1.5-2.0 psi (10-14 kPa) of pressure drop under clean strainer conditions at maximum flow.

Typical Friction Losses of Water in Pipe - (Old Pipe) (Nominal Pipe Diameter)

Velocity vs Flow


STD. PIPE SIZES 11/2" TO 5" (38.1 to 127 mm)


TUBE SIZES FROM 1" TO 5" O.D. (25.4 mm to 127 mm) (COMMON USAGE WALL THICKNESS)

Coolant Chemical and Physical Properties

Minimum Acceptable Water Characteristics for Use in Engine Cooling Systems

Boiling Point of Coolant at Varying Antifreeze Concentrations

Protection Temperatures for Antifreeze Concentrations1


1Ethylene glycol-based antifreeze.

Barometric Pressures and Boiling Points of Water at Various Altitudes

Barometric Pressure

AVSpare Diesel Engine1 Antifreeze Protection Chart (Fahrenheit)


1Also for use in natural gas engines

AVSpare Diesel Engine1 Antifreeze Protection Chart (Celsius)


1Also for use in natural gas engines

pH Scale for Coolant Mixture

Temperature Regulators

New Temperature Regulators - 1330, 1355; 3606 (8RB), 3608 (6MC), 3612 (9RC), 3616 (1PD) Industrial Engines

The 3600 Family of Engines has three sets of temperature regulators. The regulators are the jacket water (JW) inlet control, the oil cooler and aftercooler (O/C and A/C) inlet control, and the oil cooler oil temperature control. The chart identifies the new and former regulators. The recommended service hours of temperature regulators is every 6000 service meter hours or annually, whichever occurs first.

Diagnostic Tooling

Self-Sealing Probe Adapters:

Coolant Expansion Rates

As a rule of thumb, expansion tanks should have a capacity of 16% of the total system coolant volume for expansion plus reserve.

Densities of Liquids [at 60°F (16°C)]

Supplemental Coolant Additive (Conditioner or Inhibitor)

AVSpare recommends using antifreeze in the coolant mixture to get maximum life from cooling system components. 30% is minimum recommendation.

Information System:

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