Low pressure boilers are often box-like and constructed from stainless steel, aluminum, steel or cast iron. Inside the housing is a furnace to burn the fuel and an arrangement of pipes, valves and drums. The flue is the chimney that releases the steam into the system or atmosphere. Read More…
Leading Manufacturers
Unilux Advanced Manufacturing, LLC
Schenectady, NY | 518-344-7490We strive for the best at Unilux Advanced Manufacturing LLC. Our boilers are designed with superior materials. We are proud to say that we produced the world's first UL/FE boiler and our units provide the highest levels of safety and accountability.
Fulton
Pulaski, NY | 315-298-5121As the inventor of the vertical tubeless boiler, Fulton has a reputation for success dating back to 1949. We`re a global manufacturer of steam, hot water and hydronic boilers, thermal fluid heaters, and custom engineered systems.
Nationwide Boiler Inc.
Fremont, CA | 800-227-1966Nationwide Boiler is a leading supplier of new and reconditioned boilers for industrial facilities worldwide. We’re a manufacturer’s representative and stocking distributor for B&W package watertube boilers and Superior package firetube boilers, and we have fully reconditioned boilers in a variety of types and sizes. With sales, service and equipment depots throughout the U.S., we strive to provide our customers with reliable equipment and superior service. Call today to learn more!
ProTherm Ltd.
Brampton, ON | 905-454-1331At ProTherm, we provide complete turnkey installation, start-up, and testing of our water heating systems whether they are conventional or high-efficiency. We have experience providing water heating systems for a variety of industries. We believe that we only succeed when our customers succeed. That's why you won't find customer service like ours anywhere else.
Sellers Manufacturing Company
Danville, KY | 859-535-9908Founded in 1931, Sellers pioneered gas-fired equipment such as boilers, burners, water heating equipment and bakery equipment. We will continue to be an industry leader in boiler and burner development. Whether it is in the area of improved efficiency or cleaner emissions, we will meet these challenges with innovative technology without sacrificing the simplicity, dependability and longevity.
Johnston Boiler Co.
Ferrysburg, MI | 616-842-5050Johnston Boiler Co has been manufacturing, designing, engineering and servicing gas, oil, coal, wood, solid waste, biomass & hybrid fuel-fired steam & hot water boilers since our inception. With installations across all industries worldwide, We are recognized for the highest code standards, innovative engineering and design, Energy Star rating, fully Integrated controls, and renewable, sustainable solutions for green building design and operational efficiency. Call us today for more information.
Low Pressure Boiler System - Unilux Advanced Manufacturing, LLCLow pressure boilers are most frequently used for generating steam rather than for heating water. Because boilers do not control the pressure or flow of hot water into a shower head, for example, low pressure boilers would offer little difference from any other boiler like a combi boiler.
Low pressure boilers can range in size but generally do not require the large amount of space that high pressure boilers need. These boilers are typically used in industrial, commercial or manufacturing applications for jobs that require lower pressures, such as space heating. Residences, schools, offices and other average buildings generally do not rely on low or high pressure boilers for heating purposes.
There are two main ways boilers generate steam and hot water. Fire-tube boilers direct the heat produced from burning fuel such as wood, coal or natural gas through heat exchanging tubes that are immersed in water. Thermal energy is transferred from the tubes into the water; the steam is then collected or the water pumped out. Water-tube boilers have water that circulates inside tubes that are exposed to heat. Thermal energy from the tubes moves into the water, heating it and resulting in water vapor and hot water. Water-tube boilers are typically used in high pressure applications because they are capable of safely reaching 1,000 PSI.
Some facilities have both kinds, using water-tube boilers with high pressures for process loads while the low pressure fire-tube boilers are used for heating water and space heating. In fact, the two kinds can be combined in the same area. When high pressure or high temperature steam suddenly decreases in temperature, flash steam is formed and, if there is enough of a pressure difference, is used to supply steam to the low pressure boiler. Regardless of their power, all boilers have safety valves to keep the appliance from operating at dangerous levels.