Bypass pipes, accompanied by a three-way control valve, are often seen in hydronic systems at both served loads (e.g., reheat coils) as well as at primary equipment (e.g., cooling towers). Reasons for ...

The Tour and Andersson calibrated balancing valve is available in 14- and 16-inch (350 and 400 mm) sizes for use in large-diameter applications with high flow requirements. The valves offer precise ...

FLOWCAL AUTOMATIC FLOW BALANCING VALVES provide the precise control critical for balancing hydronic circuits. The newly-designed valves are constructed of low-lead brass. They automatically control ...

Flow is controlled by either throttling or diverting it. Throttling involves reducing orifice size until all of the flow cannot pass through the orifice; bypassing involves routing part of the flow ...

Investing in balancing valves and regular monitoring is the way to get the best performance from variable speed pumps, says Peter Rees All HVAC systems should achieve two objectives: delivering the ...

Choked flow in control valves is a subject of serious concern for industrial users. The term is usually associated with destructive process conditions that can damage valve internals or expose ...