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 ...

It’s an age-old question, one that has kept philosophers, engineers and homeowners awake at night since the dawn of time: Did I tighten that pipe enough or is it going to leak? Pipes are designed to ...