Pipe Fitting Guide



             


Monday, June 30, 2008

Hookah Pipes

The body, or govde, of a hookah pipe consists of a curved vessel which holds water. A graceful stem rises from the body and at the top of the stem is a bowl, or lle, which holds the tobacco. From one to several flexible hoses, the marpuc, with a mouthpiece, or agizlik, at the end, are used to draw the hookah smoke down through the water. The hookah tobacco is heated by charcoal and the water filters and cools the smoke. The water gurgles gently, like a woodland stream, and, in the process, makes the smoke smooth and cool.

The word shisha, which is often another word for hookah, comes from the Persian meaning glass or bottle. Hookahs and the culture of hookah smoking is often referred to as hookah shisha. Somewhat confusingly, at first, people also refer to hookah tobacco as shisha, or hookah shisha--and there is a Shisha brand of hookah shisha!

Hookah pipes today come in many styles, from Egyptian to Syrian, traveling, mini and mod models to specialty and custom designs. There is a world of history in the craftsmanship of hookah pipes. Traditional materials used in making hookahs were blown glass, often highly decorated in gold or enamel painting, brass, aluminum, silver, porcelain, clay, carved stone and wood, and leather. All these same materials are used today, with the addition of stainless steel, Pyrex glass, plastic, rubber, and high quality acrylics, among others.

In restaurants and smoking lounges, individually wrapped, disposable plastic mouthpieces are provided for each smoker. Other accoutrements of the hookah pipe and tobacco include the hookah charcoal and metal tongs. The charcoal is typically in coin-sized pieces and each lasts for about 30 minutes in the slow smoking tobacco mixture.

Certain etiquette applies to the smoking of hookah pipes: the water pipes are meant to be on the ground, rather than on a high table or shelf, with the smokers seated on cushions or low seats around it--though in modern hookah lounges, they often appear on tables. Shared hookah pipes are not supposed to be passed, but rather set down after smoking so that the next smoker can take up the pipe at their leisure.

Hookahs Info provides detailed information on hookah smoking, tobacco, pipes, and lounges, and advice on where to buy retail and wholesale hookahs. Hookahs Info is affiliated with Business Plans by Growthink.

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Tuesday, June 24, 2008

Copper Pipes

Copper is used in making pipes because it is non-toxic and resistant to corrosion. Copper is so widely used in the pipe industry that for the last 75 years, our water has traveled through a copper pipes. Every year, about a billion feet of copper pipes are installed throughout the United States. Add up the lengths of all the copper pipes ever installed in this country since 1963, and you’ll get more than five million miles.

Why copper?

Some modern plumbing systems now use plastic, but copper pipes are still widely used for most water feeds and central heating pipe work. Copper is still the preferred piping material in the piping industry because of its exclusive properties.

For one, copper is comparatively safer than lead – it is nontoxic and does not harm water. Unlike iron, copper is also very resistant to rust. Aside from this, copper is fairly malleable and easier to transform.

Copper pipe sizes

The size of copper pipes depends on its use. Micro-bore central heating systems usually use 8 and 10 mm copper pipes. Bigger copper pipes (about 12 and 15 mm) are normally used for connecting to separate taps, appliances and other similar uses. Even bigger copper pipes (22, 28 and 35 mm) are used for projects that require long runs – ones that 15 mm copper pipes cannot handle without dropping pressure.

Copper pipes are available in a range of lengths. Bigger trade outlets usually sell copper pipes of three to four meter lengths, but smaller hardware stores and do-it-yourself shops carry copper pipe lengths as short as one and a half to two meters.

Some notes about copper pipe sizes

Some countries (such as the United Kingdom) use the ‘imperial’ sizing system, meaning, the inner diameter of the pipe is measured. In the United States, copper pipes are measured based on their outer diameter. As a general rule, a 0.5 inch copper pipe (measured using the imperial system) is the same as the 15mm copper pipe measured using the metric system).

Copper provides detailed information on Copper, Copper Prices, Copper Sinks, Copper Pipes and more. Copper is affiliated with Solenoid Valves.

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Monday, June 9, 2008

What Is The Best Type Of Pipe To Use For A Compressed Air Distribution System In My Home Wood Shop?

There are several different materials available to consider, black pipe, copper, PVC, rubber hose, etc. Each material has its strengths and weaknesses.

Black pipe typically comes in 20’, 10’ and nipple lengths. Consider purchasing from a local plumbing supply house. They typically they carry a better quality of pipe than the local home supply store.

A draw back of black pipe is water and rust. Really, there is only some much that one can do to dry the air. Unfortunately a percentage water does travel in the air stream and will be deposited on the inside of the line. Over time the inside of the line will rust. The question is how long it will take until the rust weakness the wall. Usually a compressor tank will rust out sooner than the air piping.

Tip: Install a tee on the pipe before it transitions to a horizontal run. Have the leg of the tee pointing down. Cap off the end or put a full flow ball valve on the end of the nipple. It will serve a couple of purposes. First, it will help trap debris in the line before it jams your air tools. Second, it will act as a water drain.

Black pipe takes some time and effort to install. It will be necessary to cut and thread the pipe. This will require either having determined before hand, and having the material cut and threaded at the store. Or, rent a pipe threader, manual or powered. Side note, growing up I have cut threads on black and galvanized pipe that was being run for the natural gas lines in a new home (teenage summer job). Cutting threads with a manual tool is not that hard to do; however, power threaders are nice.

Copper is a nice material to use for air distribution system. It is easier to install than black pipe. It does not rust. It will handle the pressure a home air compressor puts out. If the copper tubing fails it will fatigue and bulge out instead of bursting with shrapnel.

Type L and K copper pipe is acceptable for compressed air applications. Type M is NOT. Type M is usually used in residential homes for the fresh water supply lines. The pressure that a copper pipe can handle is dependant on the temperature and the size of the pipe - for more information, see Table 6, Publication 28E, of the CCBDA. The joints are usually rated for less pressure than the pipe.

PVC pipe is very attractive for the home wood worker. It is low cost, easy to install and does not rust. Here is the big problem with it. If / when the pipe ruptures it will send sharp shards of plastic flying and can injure a person. The last thing that you want to have happen is the pipe to fail when your child is in the wood shop with dad. Check out this OSHA bulletin for more information.

I have seen home wood shops that string rubber air hoses along the walls of the shop. The draw back to this solution is that cutting the air hose is not an option since special tools are needed to crimp a fitting on the end. So, what to do? Well just coil up the excess tubing and all is well. Well…. Not really, for each bend in the air line adds turbulence and increases the static air pressure in the line. Thus there will be a significant drop in air pressure at the tool end of the hose compared to the setting on the air compressor’s regulator.

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