Specialty Gas Distribution Equipment for Buffalo

Specialty gases are only as efficacious as the apparatus employed to disseminate them. The purity and precision these gases deliver are likely to be compromised if not sustained by proper pressure and flow control and without the means to corroborate gas usage.

Though few would contest that compressed gases, given their nature,should be shipped in high-pressure gas cylinders, regulating that pressure in normal use is oftentimes considered only after the fact. It’s a fact that there are many differences between cylinder regulators intended for oxy-fuel cutting and welding, typical purge gas applications, and specialty gas use.

The PurityPlus® gas pressure-reducing regulators and flowmeters inventoried by Haun Specialty Gases deliver the exceptional quality in materials, design, and assembly that sets them apart from regular industrial gas equipment. While more expensive, this equipment commonly carries a value that far exceeds its price. PurityPlus® regulators, mind you, generally have diaphragms made of stainless steel as opposed to rubber. Rubber diaphragms have a natural tendency to pick up moisture and impurities, then off-gas the contaminants as the cylinder supply pressure dips. This can have a negative effect on carrier gas flow and instrument response.

Just as annoying is the problem of crawl. As the pressure in a gas cylinder is made to drop, the pressure on the diaphragm is also lessened, and the outlet pressure can go up. To counterbalance this action and contain its effects, it is heartily advised that a two-stage PurityPlus® regulator be applied. The manufacturer presets the first-stage pressure reduction, normally in the range of 300-500 psig, giving users the ability to  monitor the final outlet pressure in the second stage. Setting an intermediate pressure reduces the crawl effect by the second stage to ensure that  it’s almost done away with until the cylinder pressure drops below 150-200 psig.

Compare this to an industrial gas single-stage regulator. As a result of the single-stage design, the single diaphragm undergoes a nonstop reduction in supply pressure accompanied by a gradual but unbroken increase in outlet pressure that can vacillate as much as 10-15 psig.

These are just a couple of examples proving that the right gas also necessitates the right gas equipment. Contact us online or call us, Haun Specialty Gases, at 716-630-9353. As we see it, customer service goes well beyond offering the finest gases, equipment, and options. Customer service also encompasses being responsive to your questions – about specialty gas control or any other industry topic. And we’re known for being responsive.