Gate valve is different from butterfly valve

Two types of valves are mainly usedfor shutting off pipelines in sewage en-gineering or industrial applications:One of these is the gate valve, whichwas developed in the ancient worldand is still used in many applicationstoday thanks to its sophisticated tech-nology and, above all, the free passageit provides when in the open position.The other is the butterfly valve,

where a sturdy valve disc is moved be-tween the open and closed position inthe media flow, and which has a muchsmaller design height than a gate valve.