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.
You may be part of a special group of people. We can call this group, FDTU, for “future diameter tape users”. To be in that group, you would have these three qualifications:
- You never heard of a Diameter tape measure.
- After you get one, and learn how to use it, you will use one every week for the rest of your life.
- You won’t believe how you ever got along without one.
To help you on this fun journey as a FDTU, let’s find out…
What is a diameter tape.
It is a measuring tape that, when you wrap it around the circumference of a round object (pipeline or tree), it reads the “diameter”. If you would use a regular tape measure, you would have to divide by pi (3.14159) to get the diameter.
How to use a diameter tape.
What you will use it on from now on, to make your life easier.
If you need to replace a car heater hose, but you want to have the new hose on-hand before you remove the old hose, use your diameter tape to measure the diameter (and length) of the old hose. You can do the same routine when replacing plumbing.
My friend owns a marina. He never heard of a diameter tape. I gave him a diameter tape and told him what it was for. He was in the FDTU group, and now he uses this valuable diameter tape measure every day.
Are you in the FDTU Group? Now you know how a simple tape can make your life easier.
When you use your Lufkin or Pi-Cobra pipe diameter tape measure, here are 5 tips to keep you out of trouble.
- Make sure the pipe is free of dirt and mud. You don’t want to measure those things, just the pipe.
- 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.
- 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.
- 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.
- 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.
- Measure the diameter of a leaky heater hose on your car without taking it off and
letting it drip. Then get a new hose the correct size. Take off the old hose, and immediately install the new one.
- When making changes to the copper pipe in your house, measure the outside diameter of the existing pipe, so you can buy the right size. Then you will have all the right sizes when you shut off your water, and start working. You won’t be interrupted by a hasty trip to the store.
- Does your boat need a new hose, and you don’t want to remove the old one until you have the right size replacement beside you? Just measure the outside diameter (OD) of the old one, and match it to the new one.
A pipe diameter tape measure is quick and easy to use. If you ever need to do any repair work like this, you definitely need an OD tape (diameter tape).
Well, not all your customers need a pipe diameter tape measure. But these customers really need one. Why not give them one with your company logo imprinted on it?:
- Oilfield workers
- Gas field workers
- Car repair people
- Boat repair people
- Pipeline inspectors
- Municipal utility workers
- HVAC installers and inspectors
- Building contractors
- Building superintendents
If any of your customers are on this list, a pipe diameter tape measure with your logo will be visible to them every work day.
Do you need to know the outside diameter of a pipe, pipeline, or hose?
Here are your options:
- Wrap a flexible measuring tape around it and divide by pi (3.14159).
- Use a caliper and transfer its results to a ruler.
- Use a micrometer of the correct size range, and read the scale.
- Let a Diameter tape measure do all the work for you.
I prefer using method number 4. It is quick and accurate. Click here for the easy instructions:
To find the diameter of a pipe or hose, without cutting it or removing it, you need a pipe diameter tape measure. Many times when you are replacing pipes and hoses, you need to know the size before you remove the old one. You may want to purchase the new one and have it ready so you can make a quick replacement. Here are 6 ways you can benefit from using a a pipe diameter tape measure….You can measure:
- Household water pipes and drain pipes.
- Automotive heater hoses
- Car exhaust pipes
- Boat water intake hoses
- Globes for light fixtures
And here is how you let a diameter tape do the work for you:
Are you a last-minute shopper at Christmastime?
- Do you run a successful business?
- Do you want to reward your employees for an accident-free year?
- Do you want to make your customers joyous?
- Do you want your corporate logo on gifts that will last forever?
- Do you need these gifts NOW?
Barlow tapes that you order today, can be shipped tomorrow. Just ask for Free 24 Hour Rush service and order in the morning.
Do you need to find the outside diameter of a pipe or pipeline? Here is how a pipe diameter tape measure does all the work for you. All you have to do is write down the answer!
Answer these questions for yourself, and you will get the right pipe diameter tape measure!
- Metric or Imperial (Inch). Which do you need in your job? There are also 2 tapes that have BOTH metric and inch diameter scales. If the SKU number has a “m” in it, that means it is a metric scale.
- 64ths or 100ths? This question applies only if you need the Inch version of a pipe diameter tape. If you are in the oil and gas industry, you probably prefer the 100ths calibration. If you are in the boat or automotive industries in the USA, you would probably prefer the 64ths of an inch calibration. If the SKU number has a “d” in it, this means it is calibrated in 100ths of an inch.
- Size. The Lufkin models of the pocket diameter tapes will measure pipe diameters up to 23 inches. The Pi-Cobra models will measure pipe diameters up to 38 inches.