Thanks again to Fritz Rochester for taking us in the field to see how he uses the Testo 330 to check for a cracked heat exchanger and a Testo 435 to check for efficiencies in the field.
The Testo 330 and Testo 435 are available at Stromquist & Company for customers located in Georgia or Florida. If you are in another part of the country, click here to locate one of our affiliates at Controls Group North America.
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.
Many thanks to Fritz Rochester, Rochester Heating and Air for this great video on How to troubleshoot a Gas fired furnace. Fritz intended this video for licensed HVAC contractors. Controltrends agrees with Fritz that his techniques should only be performed by licensed HVAC professionals.
Check valves are one of the most basic but important valves in a water or steam system. The most common check valves are Ball Check Valves, Swing Check Valves, and Lift Check Valves.
Before you assume it’s a lost cause, follow a few troubleshooting tips for direct-acting solenoid valves. If doing these things doesn’t help, call Stromquist to order a new one!
Problem: Valve will not operate when valve circuit is energized
Possible Cause: Low voltage or no voltage to coil. Possible Solution: Check voltage at coil; it should be at least 85% of nameplate rating. Read More
Anthony, you asked for it and you got it !Have a controls question email it to eric@stromquist.com. If we cannot answer it we will find someone who can. Thanks to Affiliated Steam for helping us answer Anthony’s question
Real nice video on rebuilding a Johnson Controls pneumatic valve. Stromquist and Company has Johnson pneumatic valve repair parts in stock. Give us a call in our Florida or Georiga branches for your pneumatic valve repair parts.
For those who aren’t too familiar with solenoid valves and their function, let’s start with the basics. A solenoid valve is an electro-mechanical device that when energized or de-energized either opens or closes a valve orifice. It is designed to control the flow of air, water, oil, gas or steam. Here’s some handy terminology that is helpful in understanding solenoid valves: 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
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