Temperature: 250° F. For use with low-pressure steam-heating boilers requiring pressure relief at 15 psi, these valves meet ASME Code Section IV. All spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. Body is …
Jun 24, 2014 · Control the motorized valve with a pump controller on the boiler. When the boiler needs water, it will open the valve, which, in turn, will start the boiler-feed pump though its end switch. The boiler will get the water it needs, and once the motorized valve closes, the atmosphere won't be able to shove any unwanted water into the boiler.
How vacuum can form in a steam system - Heating Help
See related content like products and images with every search.
These boiler valves consist of a plug which can either be in the shape of a cylinder or conical.The plug also consists of a through slit which remains in-line with the flow in the open condition. When the plug is rotated by 90 Deg., this slit becomes perpendicular to flow and valves get closed.