Honeywell diaphragm valves are the valve and actuator in single body construction for use on boilers, unit heaters, duct furnaces, make-up air and rooftop heaters
The Double Block Valves are used for control of gaseous fuels in gas-fired power burners, atmospheric gas boilers, ovens, furnaces, incinerators, roof-top units, makeup air units and other gas consuming appliances.
