Wednesday, March 30, 2011

Pipe specifications


1. All pipe is to be made of a long hole, surrounded by metal or plastic centered around the hole.

2. All pipe is to be hollow throughout the entire length do not install or place into service holes of a different length than the pipe. If the hole is longer than the surrounding metal, no extra cost will be incurred to the project owner

3. Industry best practices dictate that the ID (Inside Diameter) of all pipe must not exceed the OD (Outside Diameter) - otherwise the hole will be on the outside of the pipe.

4. All pipe is to be of the very best quality, preferably tubular or pipular.

5. All pipe over 6ft (1.83m) in diameter must have the words "LARGE PIPE" painted on it, so the contractor will not mistake it for small pipe or

6. When spec-ing 90 or 45 degree elbows, be sure to specify the proper clock face ( 3:00 bend etc), to eliminate extra fittings necessary to complete a 9:00 bend” Improper spec-ing will not result in a change order for added footage to the project owner.

7. All pipes shorter than 1/8in (3mm) do not comply to the AWWA, AGA and ASTM standards for pipe. They are generally known as washers.

8. All pipe closers are to be open on one end.

9. All pipe is to be supplied with nothing in the hole so that water, steam, or other stuff can be put inside at a later date.

10. Joints in pipes for water must be water-tight. Those in pipes for compressed air, however, need only be air-tight.

11. All pipe is to be supplied without rust, as this can be more readily put on at the jobsites.

12. No fittings are to be installed on pipe unless specified. If the contractor chooses to install a nonspecified fitting, the pipe alignment will not be straight. Excess installation will not result in a change order for added footage to the project owner.

13. All pipe over 500 feet in length must have the words "Long Pipe" clearly painted on each end so that the fitter will know that it is a long pipe.

14. All pipe over two miles in length must also have these words painted on the middle so that the fitter will not have to walk the full length of the pipe to determine if it is long pipe or not.

15. All pipe over six inches in diameter is to have the words "Large Pipe" painted on it, so that the fitter will not use it for small pipe.

16. All pipe fittings are to be made of the same stuff as the pipe.

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