连接形式螺纹材质不锈钢品牌HX阀瓣开启高度微启式安全阀结构形式弹簧式公称通径型号：A21Y-250C/P（mm）（mm）型号A21Y-250C/P（mm）适用介质氧氮***空气标准国标流动方向单向零部件及配件阀体形态隔膜式压力环境高压类型(通道位置)直通式阀体构造封闭式型号：A21Y-250C/P规范：公称通径：DN4-25mm公称压力：PN25MPa适用介质：氧气、氮气、***气、空气等适用温度：-40℃-+80℃材质：阀体：铸钢/不锈钢阀座：铜阀顶、阀杆：不锈钢弹簧：弹簧钢性能：A21Y-250C/P8K44108.880.6A21Y-250C/P8K10106.043.63.05A21Y-250C/P101K10100.60.310.281.72A21Y-250C/P152K101010.90.82.97A21Y-250C/P252K10104.02.552.32.88A21Y-250C/P002K15151.60.270.243.1A21Y-250C/P101K15151.60.2450.222.83A21Y-250C/P1K20200.10.070.063.4A21Y-250C/P8K25256.04.441.8A21Y-250C/P001K25251.00.1250.116.29A21Y-250C/P002K25251.00.30.274.97A21Y-250C/P302Ad-h15151.60.3-0.80.27-0.724.6A21Y-250C/P302Ad-p32321.60.065-0.80.035-0.725.7A21Y-250C/P505Aa10104.03.2-42.88-3.63.2A21Y-250C/P915Ab442519-2217.1-19.83.1A21Y-250C/P915Aa-c662516-2214.4-19.8)