[Excerpt: Old House]
In a one-pipe system, steam from the boiler rises under pressure through the pipes to the radiators. There it displaces air by evacuation through the radiator vent valves, condenses on the radiators inner surface, and gives up heat. Steam condensate flows by gravity back through the same pipes to the boiler for reheating. The pipes, therefore, must be pitched no less than one inch in ten feet in the direction of the boiler to ensure that the condensate does not block the steam in any part of the system. All piping and radiators must be located above the boiler in a one-pipe system.
replaced - all valves with Steam Angle Radiator Valves (http://www.pexsupply.com/)
replaced - all vents with Hoffman Adjustable Angle Air Valves (http://www.pexsupply.com/)
replacing all pipe flanges with new decorative, thicker flanges (http://www.vandykes.com/)
flushing each radiator and sandblasting exterior and properly pitching each one
No comments:
Post a Comment