4安全阀是直接依靠介质压力产生的作用力来克服作用在阀瓣上的机械载荷使安全阀开启的,作用在阀瓣上的机械载荷主要来自重锤或弹簧,这种几乎是固定的机械载荷。要想保证安全阀的密封性能,必须阀座密封面和阀瓣密封面的平整度和表面粗糙度有严格的要求。 以弹簧式安全阀为例: 工作原理应该是压力=压强X面积。压力就是弹簧的压力,面积就是密封面的面积。当作用在密封面上的压强乘以密封面的面积形成的向上的推力大于弹簧的压力,弹簧被压缩,密封面打开,将压力通过泄压孔排出。
DPZO-T-271-L5
DPZO-T-271-L5伺服比例阀 DPZO-T-271-L5比例阀
DPZO-T-271-S5 DPZO-T-271-S5伺服比例阀
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DPZO-T-273-S5/D DPZO-T-273-S5/D伺服比例阀 DPZO-T-273-S5/D比例阀
DPZO-A-271-L5伺服比例阀 DPZO-A-271-L5比例阀
DPZO-A-271-L5/D 30 DPZO-A-271-L5/D
30伺服比例阀 DPZO-A-271-L5/D 30比例阀
DPZO-A-271-L5/E 30 DPZO-A-271-L5/E 30伺服比例阀
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DPZO-A-271-L5/G 30 DPZO-A-271-L5/G 30伺服比例阀
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Atos(阿托斯)电磁阀,Atos(阿托斯)液压阀
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