Page 14 - Pipeline Rules of Thumb Handbook

1: General Information

Basic formulas ..................................................................................... 2 Properties of shafting.......................................................................... 15
Mathematics—areas............................................................................ 3 Tap drills and clearance drills for machine screws ........................... 16
Mathematics—surfaces and volumes................................................. 4 Common nails ..................................................................................... 17
Cables and Ropes.................................................. 5 Drill sizes for pipe taps....................................................................... 17
Estimating strength of cable .............................................................. 5 Carbon steel—color and approximate temperature ......................... 17
Find the working strength of Manila rope........................................ 5 Bolting dimensions for raised face weld neck flanges ...................... 18
How large should drums and sheaves be for various types of Steel fitting dimensions ...................................................................... 19
wire rope?........................................................................................ 5 ANSI forged steel flanges................................................................... 20
Find advantages of block and tackle, taking into account pull out Color codes for locating underground utilities ................................. 21
friction.............................................................................................. 6 Approximate angle of repose for sloping sides of
Safe loads for wire rope...................................................................... 6 excavations....................................................................................... 21
Stress in guy wires............................................................................... 7 Trench shoring—minimum requirements......................................... 22
Strength and weight of popular wire rope ........................................ 9 Reuniting separated mercury in thermometers ................................ 23
Measuring the diameter of wire rope................................................ 9 Typical wire resistance........................................................................ 23
Wire rope: field troubles and their causes......................................... 9 How to cut odd-angle long radius elbows......................................... 24
Capacity of drums............................................................................... 11 How to read land descriptions ........................................................... 25
Belts and Shafts..................................................... 11 Size an air receiver for engine starting.............................................. 27
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Wind chill chart...................................................................................
Determine length of a V-belt ............................................................. 11
Calculate stress in shaft key ............................................................... 12 Pipeline Pigging .................................................... 29
Calculate V-belt length using simple equation.................................. 12 Sizing plates......................................................................................... 29
Estimate the horsepower that can be transmitted by a shaft .......... 13 Caliper pigging.................................................................................... 29
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Miscellaneous ........................................................ 13 Cleaning after construction ................................................................ 30
Flooding for hydrotest ........................................................................
How to estimate length of material contained in roll....................... 13 Dewatering and drying ....................................................................... 30
Convenient anti-freeze chart for winterizing cooling systems ......... 13 Estimate volume of onshore oil spill ................................................. 30
How to determine glycol requirements to bring a system to a Estimating spill volume on water....................................................... 32
desired temperature protection level............................................. 14
Weight in pounds of round steel shafting ......................................... 14

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