State Supply offers a variety of zone valves from Bell & Gossett, Honeywell, and Siemens (Powers) in various connection sizes and patterns.
one of the zone valves closed, the water in that return would start backing up into the supply main. If the zone valve reopened while the boiler was still making steam, the fresh supply of steam would go flying down the main. The noise was incredible. When you use motorized zone valves on steam systems, the best way to avoid these problems is
Hot Water Boiler Piping Zone Valves - Thermostats and Zoning A zone valve is hooked directly to a thermostat . On a call for heat, the thermostat contacts close completing the circuit to the zone valve and energizing a small motor in the zone valve.
A zone valve actuator is responsible for controlling the opening and closing of the valve. Zone valves are available in 2 or 3-way valve configurations and in various connection types. They can be normally closed or normally open, and provide differing flow rates dependent on valve size.
Do you know who invented the motorized zone valve used on older steam-heating systems? ... Don't used motorized valves on steam systems ... A steam boiler has to ...
Explanation of Zone Valves on Heating Boilers - Controlling Hot Water Heat. Our photo at left shows a Honeywell (TM) zone valve installation. Heating water piping in a building, particularly where hot water baseboard heat is used, may be divided into separate heating zones (different floors, or different areas on a single floor) to permit more detailed control of heat distribution in a building.