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the Combustion Industry
An Olsträd Corporation Company

Category Archives: Pulse-fire

Heat Rises?

There’s a common misconception that heat rises. It does not. Heat radiates equally in all directions. The misunderstanding comes from the true and observable statement that, relative to cooler air, hot air rises. That’s why hot air balloons work, also why many politicians have excellent posture. For commercial and industrial heating, knowing that heat and Read More

Posted by b-olstrad ; Published November 15, 2023

FAQ: Slow Opening (Dampened) Solenoid Valves

Q: What are the advantages to using a slow opening valve? I notice that it is an option for the VAS solenoid valves for gas. Are slow opening valves used for air, also? A: Slow opening solenoid valves (or “dampened” solenoid valves) are available for both gas and air control. VAS solenoid valves are manufactured Read More

Posted by b-olstrad ; Published January 4, 2013

Pulse-Fire 101 – Pulse-fire Pitfalls

Through our discussions regarding equipment selection, you’ve learned that pulse-fire requires solenoid valves with extremely high operating cycles, burners that light reliably, and some method of impulse control. Through dozens of installations, our technicians have encountered and overcome a number of additional pitfalls, which can derail even the best planned system. Oversized Burners A common Read More

Posted by b-olstrad ; Published August 10, 2012

Pulse-Fire 101 – Pulse-fire Implementation

Now that you’re familiar with the history, ideas, and benefits of pulse-fire, it’s time to look at implementation. Knowing what you do about the demands that pulse-firing exacts upon components, you want to make sure to get the most for your money, so you don’t wind-up spending your fuel savings on replacements. ValVario Kromschröder’s valVario Read More

Posted by b-olstrad ; Published July 27, 2012

Pulse-Fire 101 – Pulse-fire Equipment

Not all combustion equipment is suitable for pulse-firing. Some of the key equipment requirements for a successful pulse-fire installation include: operating cycles in excess of one million, capability of three cycles per minute, and repeatability. Solenoid Valve Operating Cycles In traditional, modulating systems, gas solenoids open during start-up and remain open during furnace operation. Unless Read More

Posted by b-olstrad ; Published July 12, 2012

Pulse-Fire 101 – An Introduction to Pulse-fire Combustion Systems

Improve your bottom line, lower your operating costs, increase your product quality, and do your part to reduce greenhouse gases. How? By using pulse-fire to transform your industrial furnace! What is Pulse-fire? More than anything else, pulse-fire is a method of introducing heat into a gas-fired furnace. Traditional modulating systems use valves to control the Read More

Posted by b-olstrad ; Published June 15, 2012