Boiler Blog | Nationwide Boiler Inc.

Nationwide Boiler news and upcoming events, industry related news, technical information and more. You hear it first on Nationwide's Boiler Blog!

Representing New Product Lines

Nationwide Boiler and Pacific Combustion Engineering have been busy this holiday season, adding additional brands to our current list of reputable manufacturers that we represent.

For the states of California and Nevada, Nationwide Boiler has signed on to represent E-Tech Heat Recovery Systems. For the states of Washington, Oregon, and part of Idaho, Pacific Combustion Engineering has signed on to represent Superior Boiler, Webster Combustion, and E-Tech Heat Recovery Systems. Part of Montana is also included with the E-Tech representative agreement.

First off with the Superior Boiler line, we are able to offer customers with high quality Scotch Marine firetube boilers ranging in size from 10 hp to 2,500 hp. Webster Burner builds high tech and cost effective multi fuel burners for commercial and industrial type boilers. Lastly, E-Tech Heat Recovery Systems fabricates fuel efficient solutions that also reduce exhaust pollutants. Products include a variety of economizers, steam generators, waste heat boilers, and more.

Each of these industrial equipment manufacturers have a long standing, reliable product that we as a company are confident standing behind. We are excited to begin the new year with these companies and look forward to a prosperous 2018!

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B&W MEGTEC Environmental Control Technologies

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Nationwide Boiler is excited to announce that we will now be representing the Babcock & Wilcox (B&W) line of MEGTEC environmental equipment. This exclusive agreement covers the entire state of California and eastern Nevada. 

B&W MEGTEC is a leading global supplier of environmental control technologies. Their line of emission control equipment is used for the removal or recovery of VOC, SOx, NOx, particulate, and/or mercury from flue gas or existing processes. MEGTEC’s environmental solutions will pair well with Nationwide Boiler’s proven CataStak™ SCR system.

For more information, check out our latest press release!
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Nationwide Boiler Now Represents Webster Burners

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At Nationwide Boiler, we are constantly looking for new opportunities for growth and enhanced relationships with reputable manufacturers. We are thrilled to announce our most recent partnership with Webster Combustion Technology, representing their boiler-burner line in Central and Northern California. This new relationship will allow Nationwide to offer customers an efficient and cost-effective burner as a retrofit or a part of a new package boiler system.

Webster Combustion has been in business since the 1920's, manufacturing multi-fuel burners for commercial heating, process steam, and drying applications. Majority of their burners are utilized in boiler assemblies. Webster burners offer multiple fuel flexibility, high efficiency, low emissions, and high turndown capabilities. Their product line will complement Nationwide Boiler's product offerings very well, providing a quality solution for our customers in California.

For more information, check out our latest press release!
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Safety Valves: What, Why, and How

Years ago, it was not uncommon to read news about tragic boiler explosions, sometimes resulting in mass destruction. Today, boilers are equipped with important safety devises to help protect against these types of catastrophes. Let’s take a look at the most critical of these devices: the safety valve. 

What

Boiler Safety Valves

The safety valve is one of the most important safety devices in a steam system. Safety valves provide a measure of security for plant operators and equipment from over pressure conditions. The main function of a safety valve is to relieve pressure. It is located on the boiler steam drum, and will automatically open when the pressure of the inlet side of the valve increases past the preset pressure.  All boilers are required by ASME code to have at least one safety valve, dependent upon the maximum flow capacity (MFC) of the boiler. The total capacity of the safety valve at the set point must exceed the steam control valve’s MFC if the steam valve were to fail to open. In most cases, two safety valves per boiler are required, and a third may be needed if they do not exceed the MFC.

How


There are three main parts to the safety valve: nozzle, disc, and spring. Pressurized steam enters the valve through the nozzle and is then threaded to the boiler. The disc is the lid to the nozzle, which opens or closes depending on the pressure coming from the boiler. The spring is the pressure controller.

As a boiler starts to over pressure, the nozzle will start to receive a higher pressure coming from the inlet side of the valve, and will start to sound like it is simmering. When the pressure becomes higher than the predetermined pressure of the spring, the disc will start to lift and release the steam, creating a “pop” sound. After it has released and the steam and pressure drops below the set pressure of the valve, the spring will close the disc. Once the safety valve has popped, it is important to check the valve to make sure it is not damaged and is working properly.

Why

A safety valve is usually referred to as the last line of safety defense. Without safety valves, the boiler can exceed it’s maximum allowable working pressure (MAWP) and not only damage equipment, but also injure or kill plant operators that are close by. Many variables can cause a safety valve on a boiler to lift, such as a compressed air or electrical power failure to control instrumentation, or an imbalance of feedwater rate caused by an inadvertently shut or open isolation valve. 

Once a safety valve has lifted, it is important to do a complete boiler inspection and confirm that there are no other boiler servicing issues. A safety valve should only do its job once; safety valves should not lift continuously. Lastly, it is important to have the safety valves fully repaired, cleaned and recertified with a National Board valve repair (VR) stamp as required by local code or jurisdiction. Safety valves are a critical component in a steam system, and must be maintained.

All of Nationwide Boiler’s rental boilers include on to two safety valves depending on the size; one set at design pressure and the other set slightly higher than design. By request, we can reset the safeties to a lower pressure if the application requires it. In addition, the valves are thoroughly checked after every rental and before going out to a new customer, and they are replaced and re-certified as needed. 
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