Specialty Gas Distribution Equipment for Dayton

Specialty gases can be effective only in the context of how effective the apparatus is that’s employed to disseminate them. The purity and precision these gases are known for are likely to be undermined without sufficient pressure and flow control and lacking the means to corroborate gas use.

While it’s generally understood that compressed gases, given their general characteristics, are transported in high-pressure gas cylinders, managing that pressure in typical use is oftentimes put on the back burner. It’s a fact that there are many distinctions 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 available from Weiler Welding present a high degree of quality in materials, design, and assembly that differentiates them from regular industrial gas equipment. Though higher priced, this equipment generally provides a value that far surpasses its price. PurityPlus® regulators, to illustrate the point, most often have diaphragms made of stainless steel, not rubber. Rubber diaphragms tend to pick up moisture and impurities, then off-gas these contaminants as the cylinder supply pressure drops. 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 reduced, the pressure on the diaphragm is also lessened, and the outlet pressure can go up. To offset this action and limit its effects, it is heartily recommended that a two-stage PurityPlus® regulator be used. The manufacturer presets the first-stage pressure reduction, usually in the range of 300-500 psig, leaving the user to  monitor the ultimate outlet pressure in the second stage. Setting an intermediate pressure puts dampers on the crawl effect by the second stage so  it’s just about gone until the cylinder pressure falls below 150-200 psig.

Compare this to an industrial gas single-stage regulator. With the single-stage design, the single diaphragm sees a uninterrupted lowering of supply pressure in association with a gradual but nonstop increase in outlet pressure that may waver as much as 10-15 psig.

These are just a couple of examples showing why the right gas also needs the right gas equipment. Contact us online or get in touch with us, Weiler Welding, at 937.222.8312. For us, customer service entails much more than delivering the finest gases, equipment, and options. Customer service also entails being responsive to your questions – about specialty gas control or any other industry topic. And we’re well recognized for being responsive.