Regarding the NH3 screw compressors, the company said they are available in 20 to 300 hp, designed in Germany, optimized for parallel operation with energy-efficient rotor profiles, and with advanced geometry and stability.

Regarding the NH3 reciprocating compressors, the company noted the compressors are 5 to 60 hp direct drive or belt drive, designed in Germany, easy to apply to booster applications, have high-quality shaft seals, with water-cooled heads as standard, and are optimized for parallel operation.

Art Mathews, Bitzer business development manager for industrial products, said that the company is filling a void in the marketplace for small ammonia systems.

“Historically, ammonia compressors have been large CFH models like those found in refrigerated warehouses,” he said. “But the trend now is to reduce the ammonia charge in systems and provide multiple, self-contained systems to handle the loads.”

He said the company is moving its current semi-hermetic reciprocating compressor production into a new 90,000-square-foot plant beside its current plant in Oakwood, Ga., and its production of its ASME-certified pressure vessels and ammonia refrigeration packages was moved to the plant in January.

Publication date: 2/25/2013