AR Air Regulators in multiple burner systems hold constant airfuel ratio and mixture pressure with reducing burner port area of up to 90%.
Used in the air line, the top main diaphragm chamber is referenced through a bleed loader set for the desired burner mixture pressure. The bottom main diaphragm chamber is referenced downstream of the Flomixer or Flanged Mixing Tee. Mixture pressure and air-fuel ratio are held constant as burners are turned off. Available in sizes 3/4'' through 3'' NPT for 300° service and 5 psig inlet pressures. Series 5260 is also available for 150° service and 2 psig inlet pressures.
CAPACITY TABLE Model Number Pipe Size SCFH Air Flow @ 4.0" W.C. Pressure Drop Inlet Outlet 6 AR 3/4" 3/4" 500 8 AR 1" 1" 1,000 12 AR 1-1/2" 1-1/2" 2,000 20 AR 2-1/2" 2-1/2" 5,000 24 AR 3" 3" 8,000
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