Selas Balanced Zero Regulator BZR
The Selas BZR (Balanced Zero Regulator) is engineered for energy efficiency, reliability, and precision in gas flow control across various combustion systems.
The BZR monitors and controls gas flow through a slight pressure differential across its main diaphragm. This regulation is achieved via negative or positive signals from suction mixers or controlled pressure from an external source. The BZR is designed to distribute gas in varying quantities while maintaining a constant “zero” or atmospheric pressure. The standard model can handle maximum flow ratings with pressure differences ranging from 4” to 28” W.C. This ensures dependable and precise gas flow control across various combustion systems, including proportional premixers, nozzle mixers, and mixing tees, regardless of whether the combustion chamber pressures are positive or negative.
Featuring a robust, large diaphragm, this regulator operates seamlessly within a 650 to 18,100 SCFH flow range. The standard model is designed to function effectively in ambient temperatures up to 150°F, while additional models can withstand even higher temperatures, reaching up to 700°F. This versatility makes the BZR ideal for proportional premixers and nozzle mixers. Its rugged diaphragm-actuated valve assembly ensures a precisely balanced operation at near-zero pressure, making it a dependable choice for demanding environments.
