How the Gas Pressure Regulator Helps You Get the Most Out of Compressed Gases

Compressed gas providers like GTW typically put forth significant effort to answer to their Western Michigan customer’s specific needs when it comes to accuracy, purity, and various other specifications. The majority of these specialty gases are shipped in traditional high-pressure cylinders, and others are shipped in bulk, smaller containers, or dewars. Regardless of the method of shipping, these gases will eventually face handling, distribution, and regulation by the Western Michigan consumer. Throughout this, the gases see several different types of  gas equipment and methods of handling that will either decrease or maintain its purity.

Gas handling systems can differ from being extremely complex to quite simplistic. But regardless of its configuration, the gas delivery system can have a significant effect on the purity of the gas and is a component that should never be underestimated. Likewise, the employment of certain dangerous gases can present safety hazards if they are not employed with the proper equipment.As a result, GTW wants to ensure that we are always using the right equipment and that our Western Michigan customers are as well

The goal of gas regulators in gas delivery systems is to reduce the pressure from a high-pressure origin to a pressure level that is sufficient for use. The right regulator is capable of maintaining purity of the gas while simultaneously delivering it with safety. Because of its value, there are a lot of different elements to take into consideration when selecting the best regulator for an application.

The initial element to take into consideration when choosing a regulator is the purity level that is called for in the application. The three most common purity levels required are: general purpose, high-purity, and ultra-high purity.

As an example, if an application calls for high-purity gas, then as a result, a high-purity regulator should be employed in place of a general-purpose or other insufficient regulator. At the very least, regulators that are utilized in delivery systems should be cleaned by the provider to guarantee both cleanliness and safe employment.

One more matter that should be considered when choosing the proper regulator is the regulator’s body type. The bodies of regulators can be either produced from barstock or forged. Forging is applied with only brass; barstock, contrarily is employed for stainless steel, brass, and various other materials. There are several reasons for which barstock bodies are favored for high-purity applications. One reason is its small internal volume which makes it less difficult to purge, thus enabling impurities and moisture to be removed. Likewise, barstock has a smoother internal surface which lessens the quantity of contaminants that are retained inside. Lastly, the grain structure of the metal is tighter in barstock, meaning it absorbs less moisture and impurities.

In regards to materials of construction, brass is the material applied most frequently in pressure regulators. In specific higher-purity operations or in cases where brass is incompatible with the gas being utilized, other materials such as stainless steel are used. Gases containing corrosive properties might need corrosion-resistant materials for all wetted parts, but flammables and inert gases are usually compatible with brass and most other materials. 316 stainless steel is most often employed in applications that call for corrosion-resistant materials.

Forged brass bodies are most frequently used with the lowest-purity gas, and in the lowest-cost regulators. Brass barstock bodies, contrarily, have smoother internal finishes and smaller internal volumes allowing them to maintain noncorrosive gases with higher purity levels. For semi-corrosive or corrosive gases or gas mixes and higher-purity requirements, stainless steel should be used. For gases that are highly corrosive, Monel or Hastelloy should be the materials employed as they lead to more corrosion resistance.

 
GTW supplies a wide variety of gas regulators and other specialty gas equipment that will help Western Michigan customers fulfill all of their specialty gas applications in the safest, most reliable, and most effective manner. To learn more about GTW's specialty gas equipment and other specialty gas products offered by GTW in Western Michigan, browse our catalog or contact us at 616-754-6120 or via email at darrengtwsupplies@yahoo.com