## Using a Pipe Diameter Tape Measure Is a No-Brainer

If you have a pipeline and need to find the OD (outside diameter) it makes sense to use a pipe diameter tape measure. Even a chimp could be trained to use one. (I think). All you do is

1. Wrap the tape around the pipe.
2. Read the marking where the zero mark touches the tape.
3. Even though the tape is wrapped around the circumference, it is marked by a factor of pi, so it gives you the diameter.
4. You’re done.

Now it’s time to enjoy the rest of the day in the shade.

## How to Solve Problems with a Pipe Diameter Tape Measure

A tape measure can solve basically one problem….How long is the item? But a pipe diameter tape measure can solve a short list of problems for you.

• What is the outside diameter (OD) of that pipeline, without having to cut into it. You don’t even have to divide by pi.
• What is the diameter of a tree trunk.
• What is the accurate diameter of a tire.
• What is the diameter of a beach ball, when fully inflated.

Even if the pipe is distorted, and the cross sectional diameter would be different in different directions, you can do it. The pipe diameter tape measure can tell you what the diameter would be, if it weren’t distorted. That’s because the measurement is based on the circumference. The tape automatically divides by pi (3.14159) for you.

## The Pipe Diameter Tape Measure Takes on a New Function During the COVID-19 Situation

The pipe diameter tape measure is normally used by pipeline workers and inspectors. They wrap it around the circumference of the pipe, and read the

diameter size on the tape. Now this useful tape can take on a new use during the COVID-19 lockdown.

For those of you who are forced to stay at home every day, you may have discovered the comforting appeal of the refrigerator. It’s always there with food for when you are hungry. It’s even there when you are not hungry, but just need some comfort. If you have a bathroom scale, you may have noticed that the spring might be getting weaker this month. Or, could it be that you are actually putting on weight?

A Lufkin pipe diameter tape measure can be a fun way to try to prove that your bathroom scale might be broken. Wrap it around your waist or your arm, and see for sure if you are getting too chummy with the Frigidaire.

LOL

## The Mystery of Pipe Diameter Tape Measure Codes

Lufkin pipe diameter tape measure products are available with different scales. To find the right tape for your needs, here is how to read the codes that are embedded in the SKU numbers.

• “P” means that it is a “pi” tape, also known as a diameter tape.

Examples are w606p, w906pd, w606pm, asw616pd, w606pd, w906p.

• “D” means that it measures in tenths of an inch. If the “D” were missing, it would measure in 64ths of an inch.

Examples are w906pd, asw616pd, w606pd.

• “M” means that it measures in metric scale.

An example is w606pm.

## Give A Diameter Tape Measure For Christmas

A diameter tape measure can save you a lot of time and frustration when you want to find the OD (outside diameter) of a pipe, post, or tree. This special tape has the inch scale (or metric scale) stretched out by a factor of pi (3.14159). So, if you wrap it around the pipeline, you will not see the “circumference”. You will see its diameter. You don’t need to divide your answer by 3.14159.

## 5 Pipe Diameter Tape Measure Tips

When you use your Lufkin or Pi-Cobra pipe diameter tape measure, here are 5 tips to keep you out of trouble.

1. Make sure the pipe is free of dirt and mud. You don’t want to measure those things, just the pipe.
2. Use the right tape. Do you want your answer in 100ths of an inch, 64ths of an inch, or millimeters? There is a tape for each purpose.
3. Use the right side of the tape. The other side is probably a regular linear tape. It will give you the circumference, not the diameter.
4. Wrap the tape around the pipe straight, not at an angle. If it is not straight, you will get an elevated result. You can test this by wiggling the tape so that it gives you the lowest reading.
5. Be familiar with the scale. It can be tricky on a 64ths of an inch diameter tape. 48 on the scale means 3/4 ” diameter. The easy one is 32, which is of course 1/2″ diameter.

## 3 Tricks With A Pipe Diameter Tape Measure

Many people don’t use a pipe diameter tape measure because they never heard of one.

Here are 3 tricks that will make you a user:

1. Wrap a diameter tape around a car heater hose that you intend to replace. Read the diameter, and the length. Go buy the correct hose, because you know the exact size. Remove your old leaky hose and immediately replace it with the new one. There’s no need to take the old hose to the parts store and leave your vehicle without a hose for a while.
2. Use the tape to find the diameter of a copper water pipe in your basement that is leaking a little.  Go get the pipe, and have it ready to install when you remove the old pipe.
3. Need a new rope for your boat? Get one that is the same size as your old one, by measuring the diameter with your “OD tape”.