AA90B-01
The maximum operating pressure is 1/2 Psig.
For use as a high-low valve with a fixed low setting.
The pressure drop capacity in BTU per hour at 0.3inWCis 9050 BTU. (all outlet open is 35000BTU)
With thermocouple safety device
Angle: 90 degree.
Single ring outlet.
AGA approval

AA904-01
The maximum operating pressure is 1/2 Psig.
For use as a high-low valve with a fixed low setting.
The pressure drop capacity in BTU per hour at 0.3 inWCis 10500 BTU. (all outlet open is 35000BTU)
With thermocouple safety device
Angle: 90 degree.
Double rings outlet.
AGA approval

BF904
The maximum operating pressure is 1/2 Ping.
For use high-low valve with a fixed low setting.
The pressure drop capacity is BTU per hour at 0.3 inW
Cis 10500 BTU. (all outlet open is 35000BTU)
With thermocouple safety device
Angle: 90 degree.
Double rings outlet.
AGA approval