Combustion Air Control Regulators
Selas AR Combustion Air Regulators (Product No. 5260, 5261) in multiple burner systems hold constant air/fuel ratio and mixture pressure with reducing burner port area of up to 90 in combustion systems
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 150°F service and 2 psig inlet pressures. Series 5261 is also available for 300°F service and 5 psig inlet pressures.
Capacity Table
AR Piping Diagram
Dimensions: 3/4″ – 3″ Sizes AR and AR-HP5
Notes:
- Regulator must be perpendicular to pipe run in an upright position.
- Pipe run must be horizontal and level.
- All dimensions are in inches.
Ordering Information
- Select Model Number and Quantity.
- Shipping Instructions.
