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            法兰低温球阀
 
 
        
    低温球阀分为低温浮动球和低温固定球两类,用于截断或接通管路中的低温介质,介质*低温度不得低于-196度。
法兰低温球阀具有相同的旋转90度的动作,不同的是旋塞体是球体,有圆形通孔或通道通过其轴线。球阀在管路中主要用来做切断、分配和改变介质的流动方向,它只需要用旋转90度的操作和很小的转动力矩就能关闭严密。球阀*适宜做开关、切断阀使用
执行标准 Administer Standard
法兰低温球阀具有相同的旋转90度的动作,不同的是旋塞体是球体,有圆形通孔或通道通过其轴线。球阀在管路中主要用来做切断、分配和改变介质的流动方向,它只需要用旋转90度的操作和很小的转动力矩就能关闭严密。球阀*适宜做开关、切断阀使用
执行标准 Administer Standard
设计与制造 Design and Manufacture  | 结构长度 Face To Face  | 法兰尺寸 Flange Dimension  | 压力-温度 Pressure Temperature Lating  | 试验-检验 Inspection And Test  | 
GB122237  | GB12221  | GB9113 JB79  | GB9131  | GB/T13927 JB/T9092  | 
压力试验 Pressure Test
公称压力NominalPressure  | 1.6  | 2.5  | 4.0  | 
强度试验 Shell Test  | 2.4  | 3.8  | 6.0  | 
水密封试验 Water Seal Test  | 1.8  | 2.8  | 4.4  | 
气密封试验 Air Seal Test  | 0.4-0.7  | ||
主要零件材料及性能 Main Part Materials and Property
阀体 Body  | WCB  | ZG1Cr18Ni9Ti  | CF8  | CF3  | ZG1Cr18Ni12Mo2Ti  | CF8M  | CF3M  | 
球体 阀杆 Ball Stem  | 2Cr13  | 1Cr18Ni9Ti  | 304  | 304L  | 1Cr18Ni12Mo2Ti  | 316  | 316L  | 
阀 座 Seat  | 聚四氟乙烯PTFE 加坡纤增强聚四氟乙烯PTFE+Glass 对位聚笨PPL  | ||||||
垫片 Shim  | 聚四氟乙烯PTFE 不锈钢/柔性石墨Stainless Steel/flexible Graphite 齿形垫片Tooth Profile Gasket  | ||||||
阀杆座 Stem Seat  | 聚四氟乙烯PTFE 不锈钢/柔性石墨 Stainless Steel/Flexible Graphite  | ||||||
填料 Packing  | 聚四氟乙烯PTFE 增强柔性石墨 Enhanced Flexible Graphite  | ||||||
填料压盖 Gland  | WCB  | 1Cr18Ni9Ti  | 304  | 304L  | 1Cr18Ni12Mo2Ti  | 316  | 316L  | 
温度 Temperature  | -40~150  | ||||||
介质 Medium  | 水 蒸汽 油品 Water steam Oil goods  | 硝酸类 Nitric Acid  | 强氧化介质 strongey oxidable medium  | 醋酸类 Acetic Acid  | 尿素类 Urea  | ||
规格 主要尺寸 Size Main Dimensions
1.6MPa  | DN  | L  | D  | D1  | D2  | b  | n-φd  | H  | D0  | 
凸面法兰  RF DQ41 16C 16P 16R  | 15  | 130  | 95  | 65  | 45  | 14  | 4-14  | 78  | 140  | 
20  | 140  | 105  | 75  | 55  | 14  | 4-14  | 84  | 160  | |
25  | 150  | 115  | 85  | 65  | 14  | 4-14  | 95  | 180  | |
32  | 165  | 135  | 100  | 78  | 16  | 4-18  | 150  | 250  | |
40  | 180  | 145  | 110  | 85  | 16  | 4-18  | 150  | 300  | |
50  | 200  | 160  | 125  | 100  | 18  | 4-18  | 170  | 350  | |
65  | 220  | 180  | 145  | 120  | 20  | 4-18  | 195  | 350  | |
80  | 250  | 195  | 160  | 135  | 20  | 8-18  | 215  | 400  | |
100  | 280  | 215  | 180  | 155  | 20  | 8-18  | 250  | 500  | |
125  | 320  | 245  | 210  | 185  | 22  | 8-18  | 265  | 600  | |
150  | 360  | 280  | 240  | 210  | 24  | 8-23  | 270  | 800  | |
200  | 400  | 335  | 295  | 265  | 26  | 12-23  | 330  | 1200  | |
2.5MPa  | 15  | 130  | 95  | 65  | 45  | 16  | 4-14  | 103  | 140  | 
凸面法兰 RF DQ41 25 25P 25R  | 20  | 140  | 105  | 75  | 55  | 16  | 4-14  | 112  | 160  | 
25  | 150  | 115  | 85  | 65  | 16  | 4-14  | 123  | 180  | |
32  | 165  | 135  | 100  | 78  | 18  | 4-18  | 150  | 250  | |
40  | 180  | 145  | 110  | 85  | 18  | 4-18  | 156  | 300  | |
50  | 200  | 160  | 125  | 100  | 20  | 8-18  | 172  | 350  | |
65  | 220  | 180  | 145  | 120  | 22  | 8-18  | 197  | 350  | |
80  | 250  | 195  | 160  | 135  | 22  | 8-23  | 222  | 400  | |
100  | 280  | 230  | 190  | 160  | 24  | 8-23  | 253  | 500  | |
125  | 320  | 270  | 220  | 188  | 28  | 8-25  | 275  | 600  | |
150  | 360  | 300  | 250  | 218  | 30  | 8-25  | 286  | 800  | |
200  | 400  | 360  | 310  | 278  | 34  | 12-25  | 340  | 1200  | 
规格 主要尺寸 Size Main Dimensions
4.0MPa  | DN  | L  | D  | D1  | D2  | D6  | b  | n-φd  | H  | D0  | 
凹凸法兰 MFM DQ41 40 40P 40R  | 15  | 130  | 95  | 65  | 45  | 40  | 16  | 4-14  | 103  | 140  | 
20  | 140  | 105  | 75  | 55  | 51  | 16  | 4-14  | 112  | 160  | |
25  | 150  | 115  | 85  | 65  | 58  | 16  | 4-14  | 123  | 160  | |
32  | 180  | 135  | 100  | 78  | 66  | 18  | 4-18  | 150  | 250  | |
40  | 200  | 145  | 110  | 85  | 76  | 18  | 4-18  | 156  | 250  | |
50  | 220  | 160  | 125  | 100  | 88  | 20  | 4-18  | 172  | 350  | |
65  | 250  | 180  | 145  | 120  | 110  | 22  | 8-18  | 197  | 350  | |
80  | 280  | 195  | 160  | 135  | 121  | 22  | 8-18  | 222  | 450  | |
100  | 320  | 230  | 190  | 160  | 150  | 24  | 8-23  | 253  | 450  | |
125  | 400  | 270  | 220  | 188  | 176  | 28  | 8-25  | 275  | 600  | |
150  | 400  | 300  | 250  | 218  | 204  | 30  | 8-25  | 286  | 800  | |
200  | 550  | 375  | 320  | 282  | 260  | 38  | 12-30  | 340  | 1200  | |
6.4MPa  | 15  | 165  | 105  | 75  | 55  | 40  | 18  | 4-14  | 105  | 140  | 
凹凸法兰 MFM DQ41 64 64P 64R  | 20  | 190  | 125  | 90  | 68  | 51  | 20  | 4-18  | 125  | 160  | 
25  | 216  | 135  | 100  | 78  | 58  | 22  | 4-18  | 135  | 250  | |
32  | 229  | 150  | 110  | 82  | 66  | 24  | 4-23  | 150  | 350  | |
40  | 241  | 165  | 125  | 95  | 76  | 24  | 4-23  | 165  | 350  | |
50  | 292  | 175  | 135  | 105  | 88  | 26  | 4-23  | 175  | 450  | |
65  | 330  | 200  | 160  | 130  | 110  | 28  | 8-23  | 200  | 450  | |
80  | 356  | 210  | 170  | 140  | 121  | 30  | 8-23  | 210  | 600  | |
100  | 432  | 250  | 200  | 168  | 150  | 32  | 8-25  | 250  | 700  | |
125  | 508  | 295  | 240  | 202  | 176  | 36  | 8-30  | 295  | 1100  | |
150  | 559  | 340  | 280  | 240  | 204  | 38  | 8-34  | 340  | 1500  |