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 ...

When engineers are asked to list the most difficult control valve applications, turbine bypass valves are invariably mentioned. Frequent thermal cycles, high pressure drops, and the need for tight ...

In August’s column, I discussed three-way control valves, their associated bypass pipes, and the importance of a balancing valve being located within the bypass pipe. Such balancing valves are needed ...