Specialty Gas Distribution Equipment for Riverside

Specialty gases are effective only insofar as the devices tasked to propagate them are effective. The purity and precision these gases are known for may well be tempered if not sustained by the necessary pressure and flow control and without the provisions to check gas use.

Though it’s widely accepted that compressed gases, given their general characteristics, are shipped in high-pressure gas cylinders, managing that pressure in standard use is oftentimes put on the back burner. The truth is, there are major distinctions between cylinder regulators created for oxy-fuel cutting and welding, most purge gas applications, and specialty gas use.

The PurityPlus® gas pressure-reducing regulators and flowmeters carried by Elite Air have a high degree of quality in materials, design, and assembly that differentiates them from the usual industrial gas equipment. While pricier, this equipment generally provides a value that far surpasses its price. PurityPlus® regulators, for example, most often use diaphragms made of stainless steel rather than rubber. Rubber diaphragms are too likely to absorb moisture and impurities, then off-gas the contaminants as the cylinder supply pressure slides downward. This can wreak havoc in carrier gas flow and instrument response.

Just as bothersome is the matter of crawl. As the pressure in a gas cylinder is lowered, the pressure on the diaphragm is also lessened, and the outlet pressure can increase. To compensate for this action and restrict its effects, it is unequivocally advised that a two-stage PurityPlus® regulator be used. The manufacturer presets the first-stage pressure reduction, normally around 300-500 psig, while the user is allowed to  control the final outlet pressure in the second stage. Setting an intermediate pressure reduces the crawl effect by the second stage to the point that  it’s pretty much non-existent until the cylinder pressure plunges below 150-200 psig.

Contrast this with an industrial gas single-stage regulator. As a result of the single-stage design, the single diaphragm sees a unbroken lessening of supply pressure accompanied by a gradual but uninterrupted rise in outlet pressure that could vary as much as 10-15 psig.

These are only a couple of examples illustrating why the right gas also needs the right gas equipment. Contact us online or call us, Elite Air, at (951) 686-7822. We not only have the right gases and the right equipment with the right options for you, but we also have the right answers to any question you might have about specialty gas control.