PYRONICS BZR-B BIAED AIR/GAS RATIO REGULATOR

PYRONICS BZR-B BIAED AIR/GAS RATIO REGULATOR

PYRONICS BZR-B BIAED AIR/GAS RATIO REGULATOR


PRODUCT DESCRIPTION

The BRZ-B ratio regulator is designed for ambient temperatures up to a continuous operating range of 150 F. For precise control of heated gases or higher ambient operating conditions, Model BRZ-B-300 is available.

Using a gas adjuster downstream of a negative biased regulator, high fire can be set to stoichiometric conditions. As the system is turned down, the spring bias will subtract from the combustion air pressure causing the burner/gas ratio to go lean. Adjusting the screw under the cap assembly permits biasing the fuel/air ratio from high fire to low fire at a fixed, controlled rate.

As shipped, the regulator is set at zero bias.

Features and Benefits

  • Accuracy: Low – Flow: 0.1 W.C., Full – Flow: 0.3 W.C.
  • Turndown up to 20:1
  • Continuous operation to 150 °F
  • All units factory tested and sealed before shipment
  • Maximum inlet pressure: 2.0 psig
  • Minimum pressure drop through regulator: 4.0 W.C.
  • Sensitivity – Responds to signal pressure differential as low as 0.04 W.C.
  • Adjustable spring bias from: + 0.3/-5.0 W.C.

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