【产品用途】200X减压阀能控制主阀的固定出口压力，不因主阀上游进口压力变化而改变，亦不因主阀下游出口用水量变化而改变其出口压力。主要外形和连接尺寸DN20253240506580100125150200250300350400450L150160180200203216241292330356495622698787914978H1179179179210210215245305365415510560658696735735H342342342395395405430510560585675730760840910910)