宝德burkert0280 A 08.0 G1/2

宝德burkert0280 A 08.0 G1/2宝德隔膜阀0280带有伺服隔膜和强制提升装置的先导式直通阀有两种类型，即在无流量时关闭或在无流量时打开。当作用方式 A 为关闭状态时，芯体会在弹簧力的作用下将先导式孔眼关闭。经由一个隔膜节流孔，在隔膜上方形成介质压力，进而关闭阀门。接通时，芯体先打开先导式孔眼。隔膜上方的关闭压力被卸除，且阀门由介质压力打开。为了*打开阀门，所需的差压不能低于 0.5 bar

宝德burkert0280 A 08.0 G1/2There are two types of pilot direct valves with servo diaphragm and mandatory lifting device, which is to shut or open when there is no flow. When the action mode A is closed, the core will close the pilot hole with the force of spring. Through a diaphragm throttling hole, a medium pressure is formed over the diaphragm to close the valve. When connected, the core opens the pilot perforation. The closing pressure above the diaphragm is removed and the valve is opened by medium pressure. To fully open the valve, the required differential pressure must not be lower than 0.5 bar

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