The infographic demonstrates the different testing stages DFT check valves are put through, including the shell test, seat test, seat test with water, and seat test with air. Click to download complete infographic.  

(courtesy of DFT Valves) Industry professionals responsible for proper fluid and gas flow are well aware of the importance of check valves. Since many check valves operate automatically and are not under constant human control, choosing the right type of valve is critical. Every application demands a unique valve; this is particularly true when referring […]

When it comes to dealing with frozen steam coils Campbell-Sevey won’t leave you out in the cold. We offer fast turn-around on replacement parts so your system can get heating again. Heatcraft steam coils are specifically designed with freeze prevention in mind. With single-tube coils, the steam supply and condensate return headers and connections are […]

1 A Watts Box 2 cA Mill Engine 3 A Newcomen Dynamo 4 An Aeolipile The answer… an Aeolipile Although the 18th and 19th centuries might be known as the Age of Steam, thanks to the rising use of steam engines and their influence on transport and commerce, the roots of the steam engine reach […]

From 2000 to 2012, Armstrong sold more than 1,000 Brain Model 32rmx-R, EMC-1, EMC-2 and EMC-3. The “RED” valve in these assemblies was the 32rmx. The 32rmx became obsolete in 2012 due to the introduction of the DRV40 Digital Recirculating Valve and the US “Lead Free Law” that went into effect in January 2014. Neither […]

The Robust Curriculum Spans for that 10 Colleges and 100 Courses of Study   For industry trades people and professionals interested in earning continuing education credits or learning more about steam, air and water systems, Campbell-Sevey highly recommends Armstrong University. The online courses are engaging and are the result of more than 1,600 years of […]

In 1922, Richard Klinger invented the piston valve by replacing the disk and seat of a conventional globe valve with a cylindrical piston and two resilient, replaceable sealing rings. Constant research and development have resulted in sealing rings that provide the piston valve with an extraordinary ability to seal line pressure and prevent leakage to […]

What solution is said to have potential for 57% of needed carbon cuts by 2030? 1. Space-based solar systems 2. Energy efficiency 3. Carbon capture and storage 4. Nanotechnology Correct Answer: Energy efficiency The International Energy Agency’s scenario for stabilizing the atmospheric concentration of carbon dioxide at 450 parts per million would get 57% of […]

HumidiClean, with its remarkable ionic bed technology, collects deposits on its ionic bed inserts instead of tank walls or heating elements. As a result, it operates efficiently longer, its tank stays cleaner longer, and it maintains nearly maximum output throughout its service life. Ionic beds are made of a fibrous medium that attracts solids from […]

Now you can reduce fuel use and cost by recovering heat from flue gases that would otherwise be wasted with an E-Tech Stack Economizer. Use the heat recovered to preheat boiler feedwater. The E-Tech economizer is essentially a finned tube heat exchanger installed in the boiler flue exhaust stack. Hot flue gases pass over the […]