There are several reasons why companies conduct hydrostatic pressure testing of PEX pipe lines. Different kinds of pipelines which are utilized to install PEX tube fittings comprise of: rigid gas, polyvinyl chloride and flexible gas. These three varieties all have different characteristics when subjected to hydrostatic pressure. There are different manners to test the strength of these pipes including open-end, closed-end and hydrostatic testing. Most companies which use this variety of pipeline perform this procedure at least once in a year. In addition, some inspectors also perform other types of pipeline inspections such as visual inspection, visual control testing and acoustic testing among others.
Hydrostatic testing is conducted in order to identify the root cause of any abnormal change in constant hydrostatic pressure force. This equipment is used to measure the forces acting on the pipelines when they pass through elevated water levels. Hydrostatic inspectors perform hydrostatic pressure testing in order to determine if there has been a crack or a distortion in the pipe. There may be other reasons why pipes fail to meet specified constant hydrostatic pressure force limits. Some of these reasons include pipe corrosion, excessive flow, pipe wall cracking, bending and stress cracking.
Before hydrostatic pressure testing can be performed, the inspector places inside the piping a device called a dynamic pressure gauge. This device measures the pressure exerted on the pipe by rapidly varying the amount of water present inside it. This equipment produces an accurate reading on the pressure that the pipe is exerting on it. The readings are given in pounds per square inch.
The purpose of using this comparison tool is to ensure that the same pipe has been placed inside a given piping and that the results produced are also from the same hydrostatic pressure testing machine. Sometimes, however, the results of the dynamic gauge device are different from those obtained by the hydrostatic pressure testing machine. This happens when the two devices differ in size, shape, material and other specifications. When this occurs, the inspector must compare the two readings in order to determine which one is more reliable. The inspector must make sure that he or she uses the same type of product remove, or sample jar, in both tests.
Keeping Provision Time in Mind: Another important factor to keep in mind when doing hydrostatic pressure testing machine inspection is keeping provision time in mind. Provision time refers to the time period needed before another test can take place. This prevents the inspector from prematurely stopping a pipeline project just because he or she missed a provision check. Since pipeline operations undergo several different conditions during their lifetimes, including use, discharge, temperature, exposure to contaminants and other factors, it is important to have a long enough provision time for all pipelines that use that particular tester. This will also make it easier for the company to service all of its pipelines on a routine basis without any hiccups in the process.
Other factors that must be considered when making a comparison tool for hydrostatic pressure testing machines include product safety, pipe joint integrity, and access to the area to be tested. Before starting a project, contractors should first ensure that all pipes in the area will be able to accommodate the product being used. They should also plan on how inspections will take place and whether special equipment will be required. Finally, contractors should contact a good testing machines supplier so they can obtain a quality product remove, or sample jar, for proper comparison.