Gate valves are rather simple valves that should be used as only open/close valves. Media such as steam going through the gate of the valve not fully open will cause a restriction through the valve thus increasing the velocity of the steam going through the valve which will eventually cut through the valve’s “gate” and render the valve useless.
If you are in the Maryland, Virgina, or southern Pennsylvania area, M & M Controls is the “go-to” controls company for all your boiler and building automation control needs. In my interview with Pat Marsala, the founder and president of M & M Controls, Read More
Excellent video for those domestic boiler installations. Stromquist and Company have the parts you need to keep those boilers running properly. Give us a call at 1-800-241-9471
In this power point presentation, compliments of Greg Towsley and slide share check, out what you need to know about boiler feed water control.
Read More
I have been asked over the years “What is a boiler horsepower” and what is the design criterion of square feet of heating surface per boiler horsepower.
We have written many articles about flame safe guard controls on Control Trends but we have not really given an explanation on the basic principles of these controls.
I know that many of us are visual learners so I was able to locate these videos on fire tube boilers for part 2, as a compliment to my earlier post on The Principles of Fire Tube Boilers Part 1. Enjoy. Read More
Stromquist and Company does not sell fire tube boilers but we do sell a vast amount of controls for these boilers from manufactures such as Conbraco, Honeywell, Asco, McDonnell & Miller, Maxitrol, and numerous other control manufacturers. The understanding of these boilers is a major concern in our continuing efforts to keep our readers informed.
FIRE TUBE BOILERS:
In a fire tube steam boiler, heat and gases of combustion pass through the tube surrounded by water. Fire tube boilers steam boilers maybe either high or low pressure boilers. The three types of fire tube steam boilers are horizontal return tubular boiler, scotch marine boiler, and vertical fire tube boiler.
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.
The following is a list of what causes a LWCO switch to malfunction taken from the McDonnell & Miller Service Guide.
The latest accurate information and demos on products
