J61YJ61Y对焊契式截止阀

　1.采用压力自紧式密封，阀体支管两端为焊接连接。
　　2.阀坐、阀瓣密封面采用钴基硬质合金等离子喷焊而成，耐磨、抗擦伤性能好。
　　3.阀杆经抗腐蚀性氮化处理，有良好的抗腐蚀性和抗擦伤性。

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