A48Y法蘭蒸汽閥適于溫度《350℃的蒸汽、空氣等介質的設備和管 路上，作為超壓保護裝置，當設備和管路內壓力超過允許值時，閥門自動開啟，繼而全量排放；當壓力降低到規定值時，閥門自動關閉，保證設備和管路的運行。
主要零部件材料
NO.零件名稱A48Y-C A44Y-C 材料A44Y-P材料A44Y-R材料1閥體WCBZG1Cr18Ni9TiCF8M2閥座2Cr131Cr18Ni9Ti3163調節圈ZG2Cr13ZG1Cr18Ni9Ti0Cr18Ni12Mo2Ti4反沖盤ZG2Cr13ZG1Cr18Ni9Ti3165閥瓣2Cr131Cr18Ni9Ti3166導向套2Cr131Cr18Ni9Ti0Cr18Ni12Mo2Ti7閥蓋ZG230-450ZG230-450ZG230-4508彈簧50CrVA50CrVA包覆氟塑料50CrVA包覆氟塑料9閥桿2Cr131Cr18Ni9Ti1Cr18Ni12Mo2Ti10扳手ZG200-400ZG200-400ZG200-40011調整螺桿452Cr132Cr1312保護罩ZG200-400ZG200-400316
密封面材料堆焊Co基硬質合金
外形尺寸和連接尺寸
型號公稱通徑doDKgg1bff1Z-?dDN'D1K1g3g2b1f'f1'Z1-?d1LL1≈HA48Y-16C201510575
55162
4-142511585
65162
4-1411095411251611585
65162
4-1432140100
78182
4-18110954113220140100
78182
4-1840150110
85183
4-181151004114025150110
85183
4-1850165125
100203
4-181201104725032165125
100203
4-1865185145
120203
4-181351205326540185145
120203
4-1880200160
135203
8-181601405568050200160
135203
8-18100220180
155223
8-1817013556110065220180
155203
8-18125250210
185223
8-1819517566712580250210
185223
8-18150285240
210243
8-23210190857150100285240
210243
8-23175310270
240263
8-23255230915200125340295
26526