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7120/8120系列正、负弹簧加载呼吸阀
公称压力CL150～CL300、PN16～PN63
负压设定-4.3～-82KPA
公称尺寸NPS1～NPS12、DN25～DN300
壳体材料碳钢、不锈钢、合金钢等
正压设定6.9～103.4KPA
7120/8120系列正、负弹簧加载呼吸阀.pdf
7120/8120系列正、负弹簧加载呼吸阀
公称压力CL150～CL300、PN16～PN63
负压设定-4.3～-82KPA
公称尺寸NPS1～NPS12、DN25～DN300
壳体材料碳钢、不锈钢、合金钢等
正压设定6.9～103.4KPA
7120/8120系列正、负弹簧加载呼吸阀.pdf
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