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DH21Y-320P低溫高壓止回閥產品規范
公稱壓力：32.0MPa
公稱通徑：10mm～50mm
適用介質：LO2、LN2、LAr、LNG、LC2H4等
適用溫度：-196～+80℃
連接方式：活套接管
介質流向：由閥瓣下面向上流

DH21Y-320P低溫高壓止回閥主要零部件材料
閥體、閥蓋：不銹鋼
閥瓣：堆焊司太萊合金
密封圈：紫銅