Temperature Brass Fittings

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Temperature Brass Fittings
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When it comes to joining pipes there are several options for the DIYer ranging from screw together plastic, compression and soldered joints. These options have their good and bad points and are all employed by professionals depending on particular circumstances and requirements of any one job. An option often avoided by the amateur, however, is to use soldered joints. Carried out with care and attention a soldered joint will perform well while offering strength and a neater looking - professional finish.

If you recall those metalwork lessons at school, the process of soldering and brazing joints consisted of a neat fitting joint free from dirt and grease etc. The best way to clean brass pipes is to scrub the areas to be jointed with a little wire wool. Don't forget to also clean the joint, as all surfaces need to be clean. Remember the word flux from your school metalwork days? Flux will help clean the joint by removing oxides from the surfaces of the pipe. Flux should be painted on the appropriate parts of the pipe and fixing. On the subject of flux, it's worth noting there are many types. Much depends upon the type of metal we are jointing and the heat involved. Make certain you have flux, which is appropriate for soldering brass pipe. Some joints come ready impregnated with solder, but it's still good to check cleanliness, flux the joint and have extra solder to hand.

Before reaching the point of cleaning and fluxing it's always worth assembling as much pipe-work together as possible. In carrying out a dry fit, it'll be more evident where sections can be modified to simplify or neaten the job.

Solder melts at fairly low temperatures (approx 180 degrees C) in comparison to brass (c 750) or silver (c 650) rods. Therefore the pipe and joint should reach the correct temperature quickly. If work is being carried out in confined areas ensure flammables are well out of the way and protective matting is used to keep heat away from things you'd rather not damage. As the soldering wire is offered up to the joint it should melt from the heat of the pipe rather than direct heat from the blowtorch. Through capillary action the solder should flow in and around the joint. With solder impregnated joints, solder should emerge to the outer edges. The best joints are done quickly and without fuss. A minute or so heating should be enough. Heavier duty joints may take a little longer but if you are applying heat for several minutes or the pipe has been glowing a dull orange for a while, the job should be done. If at this point the solder congeals into droplets then there's a good chance the joint wasn't properly clean or has become dirty from prolonged heating. In these cases it's best to start again...possibly replacing the joint unless it'll properly clean up.

Once you've mastered the art of soldering you'll appreciate how much more solid the joint is and how much more versatile you can get with your arrangement of pipes, especially in restrictive areas such as under sinks and baths etc.

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Pex Plumbing - Selecting The Right Tool, Fittings, & Pipe For Your Job

Pex is a cross-linked polyethylene used in water supply system. It is much better than normal metallic pipes such as iron, copper or lead due to several reasons. In fact, it is better than any plastic pipe as well. With this guide, we will try to find out the best way to select the right tool, fitting and pipe for pex plumbing.

Selecting the Right Tool

When you are working with pex plumbing, you must use the standard crimping technique. To execute this technique, you must need 3 pex tools – (1) the primary crimping tool, (2) de-crimping tool and (3) pipe cutter.

Depending on your specific requirement, you can choose primary crimping tool in different configurations. While one type of configuration may have the capability of crimping ½ inch, some other type may have the capacity of ¾ inch pex tubing. On the other hand, some types incorporate transposable crimp heads with any of these above-mentioned sizes of the pex tubing.

De-crimping tool is used to take out copper crimp ring from the fitting and from the tube. It helps in reusing the fittings easily.

Pipe cutter helps in making a decent square cure before you insert the tube through the fitting.

Fittings

Pex fittings are typically designed with brass materials, though some dealers prefer to use copper, bronze or artificially designed plastic fittings for pex plumbing. The internal ridges of the fitting make out one to other. The ridges, the crimped copper ring along with the pex tube itself – all work mutually to create a high-pressure seal.

Pipe

As told earlier, pex pipe is pretty durable and flexible by nature. It is mainly because of the material, which is cross-linked high density polyethylene polymer. While processing the pipe, it is continuously melted and extruded into the tube. The cross-linking method is established using 1 of 3 procedures.

Cross-linking is a chemical procedure that initiates in the polyethylene polymer chain. It helps in making the pipe more durable and resistant to temperature and stress. The 3 cross-linking procedures are – (1) Pex-a procedure or Engels Procedure, (2) Pex-b procedure or Silane Procedure and (3) Pex-3 procedure or Radiation Procedure.

It is estimated that the pex plumbing procedure was introduced to Europe during 1970s and to the U.S in 1980s. Since then, this method is getting popularized and the use of pex plumbing has been increasing ever since, substituting the usage of copper pipe in most of the cases.

About the Author

Everything they never informed you about pex plumbing revealed! For more insider tips and info be sure and check out: http://pex-plumbing.com

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