力士乐单向减压阀R900472470 DR6DP2-5X/25YM
力士乐减压阀是通过调节，将进口压力减至某一需要的出口压力，并依靠介质本身的能量，使出口压力自动保持稳定的阀门。从流体力学的观点看，减压阀是一个局部阻力可以变化的节流元件，即通过改变节流面积，使流速及流体的动能改变，造成不同的压力损失，从而达到减压的目的。然后依靠控制与调节系统的调节，使阀后压力的波动与弹簧力相平衡，使阀后压力在一定的误差范围内保持恒定。 1)调压范围：它是指减压阀输出压力P2的可调范围，在此范围内要求达到规定的精度。调压范围主要与调压弹簧的刚度有关。 (2)压力特性：它是指流量g为定值时，因输入压力波动而引起输出压力波动的特性。输出压力波动越小，减压阀的特性越好。输出压力必须低于输入压力—定值才基本上不随输入压力变化而变化。 (3)流量特性：它是指输入压力—定时，输出压力随输出流量g的变化而变化的持性。当流量g发生变化时，输出压力的变化越小越好。一般输出压力越低，它随输出流量的变化波动就越小。 R900420531 S 10 A1.0/ R900420537 S15A05-1X/450J3 R900420525 S 20 A1.0/ R900420511 S 25 A1.0/ R900420519 S 30 A1.0/ R900344549 M-SR 10 KE02-1X/ R900344549 M-SR 10 KE05-1X/ R900345372 M-SR 15 KE05-1X/ R900340979 M-SR 20 KE05-1X/ R900344778 M-SR 25 KE05-1X/ R900344919 M-SR 30 KE05-1X/ 0811402016 DBETX-1X/315G24-8NZ4M 0811402017 DBETX-1X/180G24-8NZ4M R901054483 4WRA
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