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name��pneumatic double seat regulating valve
model��zman
nominal diameter��25��300mm
nominal pressure��pn1.6��4.0��6.4��10mpa
material��wcb��cf8��cf8m��cf3��cf3m
zmam type pneumatic double seat regulating valve has two valve seats, fluid pass through upper and lower seal face between valve core and valve seats, so the flowing capability is big and flow unbalance force is low, suitable for large flow rate, large allowable differential pressure and low leakage requirement occasions.
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