Selas Heat Technology Company

Selas KVA Radiant Burners

Selas KVA Radiant Burners

The KVA Radiant Burner offers high turndown of 20:1

Selas’ versatile KVA radiant burner employs the variable-area principle. That is, the position of the burner tip changes as the pressure exerted by the fuel mixture upon the burner diaphragm changes. When mixture pressure exceeds that of a retaining spring, the diaphragm immediately responds by moving the tip to a new position which provides an enlarged port area. This special design feature makes a 20-to-1 operating range possible.

Features and Benefits

• Faster heating. The high speed of radiant heat transfer and greater intimacy between the heat source and the workpiece assures faster heating without flame impingement.
• Finer control. Burners focus radiant heat and, when necessary, pattern the heat to yield different degrees of intensity. Uneven heat losses in a furnace can be offset by directing radiant heat so it is proportional to losses.
• Improved product quality. Faster, more uniform heating frequently improves product quality as it minimizes scaling, decarburization, and the oxidation of materials.
• With the unique Variable Area design, only minimal change in pressure is required when heat output is increased or lowered. For example, heat output can be boosted from 8,000 to 160,000 Btu/hr with a pressure change of only 36 inches WC. A conventional burner having a fixed port area would require a pressure change of 1500 inches WC.