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Boiler Blowdown Equipment

Madden Manufacturing, Inc. was originally the P.E. Madden Co. of Chicago, IL. which started in the industrial water treatment chemical business, making boiler continuous blowdown flow control and heat recovery equipment in the 1930's…. we’ve been doing this for a long time.
At Madden, we have nearly everything to service your boiler blowdown needs. Madden boiler blowdown equipment can hold boiler blowdown, separate boiler blowdown to steam and waste water, cool boiler blowdown, control continuous blowdown flow rate, and even recover otherwise lost heat from the blowdown. All of our steam equipment pressure vessels are ASME code stamped for Section VIII, Division 1 requirements and come with a National Board serial number and U-1 form.

Our Products

HV Heat Recovery System
HV type Heat Recovery System
  • Heat Recovery Systems
Madden heat recovery systems are designed to recover energy in otherwise lost BTU’s due to steam ventilation and convection cooling. If you have an application where surface or top continuous blowdown is at least 300 PPH, then there is a Madden Heat Recovery System waiting to save you money. Madden HC and HV units are designed to separate the hot boiler blowdown into flash steam. This flash steam can be recovered and sent back to your deaerator (D/A) tank to be used to heat boiler make up water. The rest of the blowdown is then cooled with counter flowing cooling water, thus allowing it to be safely put into the city sewer.

Click one of the links below to learn more about our Heat Recovery Products

HC Series (11 models, 4,000-50,000 PPH, Horizontal Unit)
HV Series (12 models, 3,000-15,000 PPH, Vertical Unit)
HX Series (6 models, 2,000-3,500 PPH, Small Vertical Unit, No Flash Steam Recovery)
Blowdown Separator with aftercooler
Blowdown Separator
  • Blowdown Separators
Purpose:The purpose of a boiler blowdown separator when equipped with an aftercooler, is to cool off the intermittent boiler blowdown flow so the waste water can be safely discharged into a public sewer system and so that the flash steam can be safely vented into the atmosphere.

Click here to learn more about the function of our blowdown separators (10 standard models, customization friendly).
  • Bottom Blowdown Tanks
    Blowdown Tank
    Blowdown Tank
Blowdown tanks cool your intermittent hot boiler blowdown via the flash steam principle as well as convection cooling. When the hot boiler blowoff enters the tank, the pressure change, as well as water striking a baffle turns some of the blowdown into flash steam. This is then safely vented into the atmosphere. The rest then cools over a 6-12 hour period before being safely dumped into the city sewer.

Click here to get a closer look at our ASME boiler blowdown tanks (6 models, customization friendly).
  • Orifice Meters: Blowdown flow control
Orifice Meter
Orifice Meter
The most versatile and durable blowdown flow control product you’re going to find on the market. Madden Orifice Meters are designed to handle hot continuous boiler blowdown 24/7/365. Our orifice meters can be disassembled with common tools for cleaning and maintenance dramatically increasing their life span and reducing your cost in the long run.

Click here to learn more about our orifice meters

  • Sample Coolers
Type 1 Sample Cooler  
Type 1 Sample Cooler
Miniature heat exchangers designed to reduce high temperature liquid samples to safe, usable temperatures for analysis. We have two types with many variations.
Check out the links below to find the perfect sample cooler for your application.

Liquid Sample Coolers
Miniature Heat Exchangers
Pump Seal Flush Coolers


And don’t forget about our metering pumps. They service many boiler rooms around the world!
  • JN Series: 6 models from 1 to 11 GPH (4-42 L/hr), simplex, duplex and triplex metering pumps available
  • MF Series: 11 models from 5 to 75 GPH (19-340 L/hr), simplex, duplex, triplex and quadruplex metering pumps available
  • MH Series: 5 models from 96 to 360 GPH (363-1,362 L/hr), simplex and duplex metering pumps available
To learn more about our Boiler Blowdown Equipment, click here to contact us today!
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Faster Lead Times than Neptune & Milton Roy

Madden Manufacturing is currently quoting lead times of:
  • Chemical Metering Pumps @ 1-2 weeks
  • Fully Assembled Chemical Feed Systems @ 3-6 weeks
  • Sample Coolers & Small Heat Exchangers @ < 1 week
  • Emergency/Rush pumps in 1-2 days!

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