Specialty Gas Distribution Equipment for Columbus

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 lessened should they not be supported by the required pressure and flow control and without the wherewithal to corroborate gas usage.

Though it’s widely accepted that compressed gases, given their nature, are delivered in high-pressure gas cylinders, regulating that pressure in typical use is oftentimes treated as a matter of secondary importance. There are noteworthy distinctions between cylinder regulators intended for oxy-fuel cutting and welding, most purge gas applications, and specialty gas use.

The PurityPlus® gas pressure-reducing regulators and flowmeters inventoried by Delille Oxygen Company have a high degree of quality in materials, design, and assembly that differentiates them from conventional industrial gas equipment. Though more costly, this equipment commonly carries a value that goes well beyond its price. PurityPlus® regulators, to illustrate the point, typically use diaphragms made of stainless steel as opposed to rubber. Rubber diaphragms have a propensity to soak up moisture and impurities, then off-gas such contaminants as the cylinder supply pressure falls. This can wreak havoc in carrier gas flow and instrument response.

Equally annoying is the problem 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 offset this action and tamp down its effects, it is seriously advised that a two-stage PurityPlus® regulator be used. The manufacturer presets the first-stage pressure reduction, usually around 300-500 psig, while the user is allowed to  monitor the ultimate outlet pressure in the second stage. Setting an intermediate pressure dampens the crawl effect by the second stage to the point that  it’s almost done away with until the cylinder pressure dives below 150-200 psig.

Contrast this with an industrial gas single-stage regulator. With the single-stage design, the single diaphragm experiences a uninterrupted lowering of supply pressure as well as a gradual but unbroken increase in outlet pressure that might vacillate as much as 10-15 psig.

These are but a couple of examples that illustrate why the right gas also necessitates the right gas equipment. Contact us online or get in touch with us, Delille Oxygen Company, at (614) 444-1177. 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.