Boilers/

High Pressure Boilers

High pressure boilers are tanks or vessels that facilitate the transfer of heat from its source to water or steam while maintaining a high internal pressure. High temperatures in a sealed volume result in high pressure, which can be used to maximize efficiency and power. High pressure boilers have historically been misunderstood and therefore dangerous; there are multiple recorded instances of exploding industrial steam engines or locomotives resulting in death and injury.

Unilux Advanced Manufacturing, LLC
Schenectady, NY
518-344-7490
Unilux has years of experience in applications of sales and service of water tube, steam boilers and packaged boilers. The Unilux Boiler is the second oldest bent boiler currently on the market. Specializing in custom-engineered boiler projects, we have the highest standards in quality workmanship, manufacturing, design and performance at our state of the art facility. In business since 1973.
Bryan Steam, LLC
Peru, IN
765-473-6651
Industry leading producer of commercial/industrial "flexible water tube" boilers for more than 75 years. Bryan Steam produces a wide range of gas, oil, dual fuel & electric water & steam boilers including new ultra-high efficiency Triple-Flex (TM) boilers. Our flexible water tube design provides maximum heat transfer with optimum operating efficiency & eliminating external pumps dependency.
Hurst Boiler & Welding Company, Inc.
Coolidge, GA
877-994-8778
Since 1967, Hurst Boiler & Welding Co. has been designing, engineering, manufacturing & servicing gas, oil, wood, coal, solid waste, biomass & hybrid fuel-fired steam & hot water boilers. Thousands of satisfied customers rely on Hurst's complete line of packaged boilers & boiler systems--including Low NOx modular boilers--controls & accessories, plus turnkey after-market products & services.
Alpha Boilers, Inc.
Miami, FL
305-442-2233
It all boils down to quality and experience, which is exactly why you should contact Alpha Boilers. For 30 years, we have been a leading global provider and manufacturer of high-quality industrial boilers and high-pressure boilers for the sugar industry. Custom design capabilities and experience allow Alpha Boilers to offer you the best quality products and service possible.
Cisco Boiler Service Co., Inc.
Houston, TX
713-928-5700
At CISCO Boiler, we provide the best service and products available at competitive rates, insuring our customers' complete satisfaction. We manufacture & assemble feed water systems, heat exchangers, packaged boiler houses & other related boiler & heat transfer equipment. Our trained technicians use the latest technologies to set combustion & monitor emissions. Contact us today!
RENTECH Boiler Systems, Inc.
Abilene, TX
325-672-3400
Since 1996, RENTECH has been building boilers for people who know and care. We are a leading manufacturer of industrial boilers offering quality gas boilers, steam boilers, waste heat recovery boilers and more. We offer excellent technical solutions to the unique needs of our customers for steam with a focus on custom design and service, competitive prices, and reliable delivery schedules.
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Industry Information

High Pressure Boilers

Technically, high pressure boilers are those that operate at pressures greater than 15 pounds per square inch (PSI) when special construction techniques are required. The usual industrial range is from around 250 PSI to up to 1,000 PSI. Like conventional boilers, high pressure boilers are made from steel, aluminum or cast iron. They are rectangular in shape with the components housed inside a box-like casing. Because of the massive output of steam or water, high pressure boilers are often quite large and can be multiple stories tall. They have a large footprint and occupy many square feet of space. High pressure boilers are used in industrial, commercial or manufacturing applications for central heating systems, autoclaves, hot water supply and other important factory or plant processes. Residences or average buildings do not require high pressure performance from their boilers nor could they fit high pressure boilers.

Conventional boilers use either fire-tubes or water-tubes to generate heat. To produce hot water or steam, a fuel such as coal or natural gas is burned inside the furnace and heats the water-filled steam generator tubes that line the inside of the boiler. The greater the difference between the temperature of the rising steam and the temperature of the steam when it leaves the boiler, the higher efficiency will be achieved. High pressure boilers use water-tubes because a normal fire-tube could not produce high enough temperatures or pressures even if it was bigger, stronger and fed more fuel. Though the external walls are stronger, the heat exchangers used in water-tube boilers have small diameters that allow more water to be heated quickly due to the ratio of surface area and volume. Fire-tube boilers would have to increase the size and thickness of all components in order to withstand the pressure that hinders the heat exchange and transfer. Thicker walls and bigger tubes designed to increase the pressure would in fact inhibit it because the system would not be able to achieve high temperatures or complete heating. High pressure boilers always are equipped with multiple safety valves and gauges in order to prevent dangerous pressure levels.