IMT 161

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IMT 161

• Pipe Fitting Tools

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Pipe Wrenches

• Two wrenches most commonly used in pipe work are
  the straight pipe wrench and the Stillson wrench.
• They both have adjustable jaws with teeth that
  can grip round objects.
• These teeth should be kept clean and sharp.
• It is possible to file the the teeth several
  times before they need replaced.

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Pipe Wrenches

• The hook jaw floats inside the housing where a
  spring pushes the jaw forward.
• Straight pipe wrenches cost more than Stillson
  wrenches but they are stronger and get a better
  grip.
• These wrenches are not designed for using on nuts
  and bolts.

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Pipe Wrenches

• Pipe wrenches are sized by overall length.
• Sizes range from 6 to 60 inches. This is not the
  size of the pipe that the wrench will fit.
• Generally, 2 wrenches are used together in pipe
  work.
• One wrench will hold the fitting and the other
  will grip the pipe.

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                        HR-401
Stillson Wrench
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Stillson Wrench
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8 to 36 Long
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Housing Nut
Hook Jaw Heel
Straight Pipe Wrench
Hook jaw teeth face inward and the fixed jaw
teeth point out.
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Standard pipe wrench 6 to 60 ¾ to 8
pipe Weighs ½ to 51 ¼ pounds
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Aluminum Straight Pipe Wrench 10 to 48 Weigh 1
to 18.5 pounds Pipe Size is 1.5 to 6 inches
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End Wrench for working close to a wall or in a
restricted space. 6 to 36 ¾ to 5 pipe Weighs ½
pound to 19 pounds
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Heavy Duty Off-set end wrench 14, 18 and 24 2
to 3 pipe Weight is 2.25 to 9.75 pounds
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Aluminum Handle Off-set Pipe Wrench
14, 18 and 24 Pipe size is 2 to 3 Weight is
2 to 6 pounds
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Rap wrench 10 Weighs 2 pounds 1 ½ inch capacity
Striking face
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Special Pipe Wrenches

• There are special wrenches for working in
  restricted areas. These are
• Off-set pipe wrenches,
• Basin wrenches and.
• Closet-spud wrench.

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Plastic Nut Basin Wrench
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Internal Pipe Wrench
Basin Wrenches
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Chain Wrenches

• Chain pipe wrenches distribute the bite of the
  jaws evenly around a pipe.
• The grip is provided by a length of steel chain
  that is permanently affixed to the wrench housing
  at one end. The other end will wrap around the
  pipe and attach to the housing to allow a tight
  grip.

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Chain Wrenches

• A ratchet action will allow this wrench to work
  in either direction without completely removing
  the chain.
• These wrenches come in a variety of sizes.

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Chain Wrench
Pipe Size is 2 to 4.5 Weight is 1.75 to 15.75
pounds
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Chain Tongs
Pipe sizes from .25 to 18 inches Weight is 9 to
139 pounds
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Strap Wrenches

• Strap wrenches are a form of pipe wrench that can
  be used to prevent jaw marks on finished or
  polished surfaces.
• These wrenches generally work in only one
  direction Reverse action can be done by removing
  the wrench and repositioning it on the pipe in
  the opposite direction.

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Strap Wrench
Pipe size is 2 to 5 inches
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Compound Leverage Wrench

• These wrenches are a combination of pipe wrench
  and a chain wrench.
• This wrench is often used to remove frozen
  pipes.
• This is a better option than using a cheater on
  a straight pipe wrench.

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Compound leverage pipe wrench
2 to 8 pipe Weight is 7.25 to 68.5 pounds
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Hex Wrench
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Spud wrench for restricted areas. No teeth to
mar surfaces. 12 inch only.
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Adjustable Wrench with scale. 6 to 24 with or
without cushioned handle. This is for nuts and
bolts!!!
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Using Pipe Wrenches

• Always use the right size wrench for the job.
• Small wrenches may not grip properly.
• Big wrenches may strip the threads or crush the
  pipe.
• If possible, apply the wrench to the pipe so that
  the jaw opening is facing you This allows you to
  pull the wrench towards you.

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Using Pipe Wrenches

• If you have to push on a wrench, brace yourself
  so that you do not fall if the wrench slips or
  the pipe turns suddenly.
• There should be a gap between the pipe and the
  back of the hook jaw. This will provide maximum
  gripping action and help prevent wrench slippage.

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Using Pipe Wrenches

• Pipe wrenches are designed only to turn round
  objects They are not intended to be used as pry
  bars or hammers.
• Pipe wrenches are safer than Channellocks and
  other types of pliers when working on round
  objects!

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460 Tongue and Groove Pliers
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GL-12 Tongue and Groove PliersGRIPLOCK
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5266 inch Slip Joint Pliers
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Robo-grip Style Pliers
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Pipe Vises

• Pipe vises are used to hold pipe securely when
  you are cutting or threading it.
• There are many types of pipe vises available to
  fit your needs.

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Pipe Vises
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Vises for welding pipe
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Cutting Pipe

• There are several types of pipe cutters
  available.
• There are manually operated cutters and powered
  cutters.
• Regardless of what type cutter you are using, you
  should always track the cutter wheel before
  applying heavy pressure to the cutter.

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Cutting Pipe

• Let the cutting wheel do the work.
• Use cutting oil on the cutting wheel and the
  pipe.
• Take good care of your cutter and the cutting
  wheel Keep them clean and replace the wheel as
  needed.

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Pipe cutter with 4 cutting wheels
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Assorted pipe cutters
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Reaming Pipe

• Reamers remove burrs formed on the inside of the
  pipe caused by the cutter wheel.
• Burrs affect the flow of material through the
  pipe. (Remember turbulent flow?).

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Reaming Pipe

• Burrs can also cut or nick electrical wires in
  conduit causing a short circuit.
• Hand reamers are spiral cut to help feed itself
  into the work.
• Powered threading machines have straight cut
  reamers.

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Pipe Reamers
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Threading Pipe

• There are many types of threaders available.
• Some are manually operated and some are powered.
• Threading dies will form the threads on the
  outside of the pipe.

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Threading Pipe

• The dies will lock into a die carrier.
• Use copious amounts of cutting oil.
• Cutting oil helps cut clean, sharp threads and
  provides cooling and lubrication.

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Threading Pipe

• Cutting oil also keeps the dies from wearing
  prematurely.
• Use only thread cutting oil Other oils will
  produce ragged, rough threads which leads to
  leaky joints.

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Threading Pipe

• Clean metal cuttings from the die cutter and the
  carrier often.
• Clean up any oil spills to prevent falls.
• Pipe taps are used to cut female threads into
  headers and plate steel.

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Threading Pipe

• Powered threaders may be hand-held or they may be
  free standing.
• These threaders generate a lot of torque so be
  careful.
• Do not back the pipe out of the die. Release the
  die carrier to prevent wear on the cutter.
• Manually operated threaders work on a ratchet
  system. Use a vise to secure the pipe.

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Hand held power threader
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Tapered Pipe Tap For cutting female (internal)
threads
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Special Tools

• There are a few special tools to help a
  pipefitter.
• Inside pipe wrenches are use to back out broken
  pipes where the pipe is too short to get a pipe
  wrench on.
• Pipe tape and pipe dope help seal joints.

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Internal Pipe Wrenches For backing out broken
pipes
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The End!!!!
Pictures from the Ridgid and Channellock Web
Sites.