Pressure buildup in heavy machinery and HVAC systems can be a real threat to workplace and residential safety. Zoro’s selection of vacuum and pressure relief valves are designed for just such instances when pressure levels have exceeded the safe zone and air or vapor needs to be released. From the simplest relief valve to vacuum valves to multiport valves and full releasing stations, find the right valve for your particular environment. After all, safety comes first. For other types of valves, shop for flow control valves, safety valves and blower relief valves.