American Boiler Manufacturers Association Celebrates 125th Year Anniversary!

abma_logoAmerican Boiler Manufacturers Association Celebrates 125 Year Anniversary!

At the first convention of the American Boiler Manufacturers Association in Pittsburgh, Pennsylvania on April 16, 1889 – following the organization’s founding in 1888 — the boiler manufacturers assembled – true craftsmen of their day who knew and respected good materials and honest workmanship – laid the cornerstone of what was to be the Association’s first Constitution and Bylaws and its commitment through the ages:

“To establish such standard for materials and workmanship as will ensure uniform excellence of construction of all American Boilers, and thus secure safety to the lives and property of all communities where boilers are used, and to procure the passage of laws making the manufacture, sale or use of inferior materials criminal offenses….” [Read more...]

ControlTalk Now for the Week Ending April 21, 2013

CTA Awards Steering Committee is the sponsor for this week’s ControlTalk NOW. The extraordinary BB King Blues Club will be the site of the 2013 ControlTrends Awards. Located in NYC’s Time Square, this famous venue promises to enhance the excitement and entertainment of the CTA’s.

Connexx Energy: Get Your Energy Products into the Market with Connexx Energy Software and Control Systems. For all the ControlTrends Community members attending the Haystack Connect 2013, in Chattanooga, TN at the end of this month, make sure you visit the Lynxspring booth and learn more about Connexx. Connecting enterprise energy software and energy control systems has many [Read more...]

Honeywell Iris Flame Scanning Systems

The Honeywell Iris scanner is the technology of monitoring the flame of industrial combustion digitally.  Iris scanners are used in the petro chemical, power generation, as well as applications where the detection, monitoring, and control of furnaces, and boilers are required.

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The Correct Way To Do Boiler Bottom Blowdown

Proper boiler blowdown is an essential part of firetube boiler operating proceedures. It is necessary to control the amount of TDS (total dissolved solids) in the boiler water.The total TDS should not exceed 3500 parts per million in a scotch marine boiler. If the blowdown is not controlled, excessive dissolved solids will have a tendency to increase and concentrate to a point that will cause a foaming or a carry over condition which will contaminate the  steam.

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Boiler Low Water Cut-Off Mounting

Questions have been asked about the proper mounting of a Low Water Cutoff on a steam boiler.

Notice: The measurements given in this article will be close to the measurements necessary for the installation and may not be the same as the recommended measurements by the boiler manufacturer or the manufacture of the Low Water Cutoff.  Care MUST be taken to follow installation measurements supplied by the manufacture of the boiler and control.

The first issue to answer is…Is this installation for a primary or secondary LWCO?  The Primary LWCO is the operating LWCO and the Secondary LWCO usually incorporates a manual reset and is used for a safety backup for the primary.

Note: on a steam boiler please make sure you have a set of water gauge cocks in the installation. The “center line” of the visible glass should correspond with the boiler’s COLD WATER LINE.

The next issue for the service person to identify is the location of the COLD WATER LINE on the boiler. This is the “normal” cold water fill line as established by the boiler manufacturer. After the boiler’s cold water line is located, look at the LWCO and locate the level mark on the body of the LWCO. With these two marks established installation can now begin.

Primary LWCO Installation:

As a primary LWCO the level mark of the LWCO should be placed for mounting between 1 3/8” to 1 ½” below the boiler’s cold water line which will establish the boiler’s normal operating range.

½” to 3/8” below the LWCO’s level mark will be the burner’s “cut-off level”

Secondary Safety LWCO:

As a secondary safety LWCO the level mark of the control should be placed for mounting between the 1” to 1 ½”area below the primary LWCO’s burner cut-off level. Careful attention MUST be made not to let the float drop below the lowest visible level of the site glass.

Before commissioning the boiler for final usage PLEASE test the Primary and Seconday LWCO levels and make adjustments as needed for proper levels.

I would like to thank Peerless Boilers for their help with information and drawings supplied in this article.