力乐士比例阀R900440783 DBE 10-3X/200YG24Z4

脉冲式安全阀由主阀和辅阀构成，通过辅阀的脉冲作用带动主阀动作、其结构复杂，通常只适用于安全泄放量很大的锅炉和压力容器。

上述三种形式的安全阀中，用得比较普遍的是弹簧式安全阀。

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