Specialty Gas Distribution Equipment for Pittsburgh

Specialty gases can be no more usable than the apparatus tasked to propagate them. The purity and precision these gases provide stand a good chance of being tempered without the required pressure and flow control and absent the wherewithal to substantiate gas usage.

Although the standard is that compressed gases, on account of their general characteristics, should be transported in high-pressure gas cylinders, regulating that pressure in standard use is often relegated to an afterthought. There are many differences 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 you’ll get from Butler Gas Products deliver a high degree of quality in materials, design, and assembly that differentiates them from ordinary industrial gas equipment. Though more costly, this equipment typically carries a value that far outstrips its price. PurityPlus® regulators, mind you, most often have diaphragms made of stainless steel rather than rubber. Rubber diaphragms have a propensity to pick up moisture and impurities, then off-gas such contaminants as the cylinder supply pressure slides downward. This can be very detrimental to proper carrier gas flow and instrument response.

Equally disconcerting is the problem of crawl. As the pressure in a gas cylinder is reduced, the pressure on the diaphragm is also lessened, and the outlet pressure can increase. To counterbalance this action and moderate its effects, it is unequivocally advised that a two-stage PurityPlus® regulator be employed. The manufacturer presets the first-stage pressure reduction, generally around 300-500 psig, leaving the user to  monitor the ultimate outlet pressure in the second stage. Setting an intermediate pressure lessens the crawl effect by the second stage so  it’s nearly a done deal until the cylinder pressure comes down below 150-200 psig.

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

These are only a couple of examples showing why the right gas also necessitates the right gas equipment. Contact us online or phone us, Butler Gas Products , at (412) 771-7660. As important as the right gases, equipment, and options are, we provide so much more than that. We also have the answers you need to questions about specialty gas control – when you need them.