A20B-2901-0660/07AA20B-2901-0660/07A
②环形通道节流装置β值的计算 首先需通过流通面积A来计算当量直径dV ，然后再计算β值。流通面积 A=π(D2- DC2) /4 ( 8) 式中DC为内锥的最大横截面直径。当量直径 dV=( D2- DC2)1/2 （9）直径比 βV=dV /D= (D2- DC2) 1/2 /D （10）③环形通道节流装置的类型ⅰ内锥节流装置美国Mccrometer公司推出了内锥式(V-cone)流量计(图3)。这种流量计的节流件是一个悬挂在管道中央的锥形体，它具有以下优点：锥体可改善流场，在前直管段仅5~10D的情况下可具有±0.5~1%的准确度，此外，它的锥体边缘比孔板耐磨，可以测比较脏污的流体；但是在结构上存在的三个缺点：单臂支撑锥体，力学结构不合理；后取压点易于堵塞；压损大，仅次于孔板。在我国21世纪初期，在缺乏充分研究、测试，没有标准、规程的情况下，宣传过热，不分场合到处滥用，造成多起严重事故。一个新传感器的研发、推出，必须在应用过程中，不断完善，切忌急于推广。对其评估也应依据科学试验的数据。为改进内锥节流装置的不足，我国近几年相继推出了槽道、内文丘利、梭式等节流装置。
6FX8002-5DA13-1FA0 POWER CABLE,PREFAB,TRAILING,MC800,50M Siemens
6FX8002-5DA15-1AB0 POWER CABLE,PREFAB,TRAILING,MC800,1M Siemens
6FX8002-5DA15-1AC0 POWER CABLE,PREFAB,TRAILING,MC800,2M Siemens
6FX8002-5DA15-1AC6 POWER CABLE,PREFAB,TRAILING,MC800+,2.6M Siemens
6FX8002-5DA15-1AD0 PREFAB,PWRCB,PERF,SZ1,SHLD,3M Siemens
6FX8002-5DA15-1AE0 PREFAB,PWRCB,PERF,SZ1,SHLD,4M Siemens
6FX8002-5DA15-1AF0 POWER CABLE, PREASSEMBLED EXT. 4X2.5+(2X Siemens
6FX8002-5DA15-1AG0 POWER CABLE,PREFAB,TRAILING,MC800,6M Siemens
6FX8002-5DA15-1AH0 POWER CABLE,PREFAB,TRAILING,MC800,7M Siemens
6FX8002-5DA15-1AH5 POWER CABLE, PREFAB,MC800,7.5M Siemens
6FX8002-5DA15-1AH7 POWER CABLE,PREFAB,TRAILING,MC800,7.7M Siemens
6FX8002-5DA15-1AJ0 POWER CABLE,PREFAB,TRAILING,MC800,8M Siemens
6FX8002-5DA15-1AK0 PREFAB,PWRCB,PERF,SZ1,SHLD,9M Siemens
6FX8002-5DA15-1BA0 POWER CABLE,PREFAB,TRAILING,MC800,10M Siemens
6FX8002-5DA15-1BB0 POWER CABLE,PREFAB,TRAILING,MC800,11M Siemens
6FX8002-5DA15-1BC0 POWER CABLE,PREFAB,TRAILING,MC800,12M Siemens
6FX8002-5DA15-1BD0 POWER CABLE,PREFAB,TRAILING,MC800,13M Siemens
6FX8002-5DA15-1BE0 POWER CABLE,PREFAB,TRAILING,MC800,14M Siemens
6FX8002-5DA15-1BG0 POWER CABLE,PREFAB,TRAILING,MC800,16M Siemens
6FX8002-5DA15-1BH0 POWER CABLE,PREFAB,TRAILING,MC800,17M Siemens
6FX8002-5DA15-1CA0 PREFAB,PWRCB,PERF,SZ1,SHLD,20M Siemens
6FX8002-5DA15-1CC0 PREFAB,PWRCB,PERF,SZ1,SHLD,22M Siemens
6FX8002-5DA15-1CD0 PREFAB,PWRCB,PERF,SZ1,SHLD,23M Siemens
6FX8002-5DA15-1CE0 POWER CABLE,PREFAB,TRAILING,MC800,24M Siemens
6FX8002-5DA15-1CF0 CABLE,POWER,PREFAB,TRAILING,MC800,25M Siemens
6FX8002-5DA15-1CG0 CABLE,POWER,PREFAB,TRAILING,MC800+,26M Siemens
6FX8002-5DA15-1DA0 CABLE,POWER,PREFAB,TRAILING,MC800,30M Siemens
6FX8002-5DA20-1AF0 POWER CABLE,PREFAB,TRAILING,MC800+,5M Siemens
6FX8002-5DA20-1AH0 POWER CABLE,PREAFB,TRAILING,MC800+,7M Siemens
6FX8002-5DA20-1AJ0 POWER CABLE,PREFAB,TRAILING,MC800,8M Siemens
6FX8002-5DA20-1BA0 POWER CABLE,PREFAB,TRAILING,MC800,10M Siemens
6FX8002-5DA21-1AD0 POWER CABLE 3M Siemens
6FX8002-5DA21-1AD5 POWER CBL,PREFAB,SZ1.5,TRLNG,MC800,3.5M Siemens
6FX8002-5DA21-1AE0 POWER CABLE,PREFAB,TRAILING,MC800,4M Siemens
6FX8002-5DA21-1AF0 POWER CABLE 5M Siemens
6FX8002-5DA21-1AG0 POWER CABLE 6M Siemens
6FX8002-5DA21-1AH0 POWER CABLE 7 METERS Siemens
6FX8002-5DA21-1AJ0 POWER CABLE 8M Siemens
6FX8002-5DA21-1AJ5 POWER CABLE,PREFAB,TRAILING,MC800,8.5M Siemens
6FX8002-5DA21-1AK0 POWER CABLE,PREFAB,TRAILING,MC800,9M Siemens
6FX8002-5DA21-1BA0 PRE,PWRCB,PERF,SZ1.5,15.2A,SHLD,BRK,10M Siemens
6FX8002-5DA21-1BB0 POWER CABLE,PREFAB,TRAILING,MC800,11M Siemens
6FX8002-5DA21-1BC0 POWER CABLE 12 M Siemens
6FX8002-5DA21-1BD0 POWER CABLE 13M Siemens
6FX8002-5DA21-1BE0 POWER CABLE 14M Siemens
6FX8002-5DA21-1BF0 PREFB,PWRCB,PERF,SZ1.5,15.2A,SHD,BRK,15M Siemens
6FX8002-5DA21-1BG0 POWER CABLE,PREFAB,TRAILING,MC800,16M Siemens
6FX8002-5DA21-1BH0 POWER CABLE 17M Siemens
6FX8002-5DA21-1BH5 POWER CABLE,PREFAB,TRAILING,MC800,17.5M Siemens
6FX8002-5DA21-1BJ0 POWER CABLE,PREFAB,TRAILING,MC800,18M Siemens
6FX8002-5DA21-1BK0 CABLE,POWER,PREFAB,TRAILING,MC800+,19M Siemens
6FX8002-5DA21-1CA0 POWER CABLE,PREFAB,TRAILING,MC800,20M Siemens
6FX8002-5DA21-1CB0 POWER CABLE,PREFAB,SZ 1.5,12.9MM,21M Siemens
6FX8002-5DA21-1CC0 POWER CABLE 22M Siemens
6FX8002-5DA21-1CD0 POWER CABLE,PREFAB,TRAILING,MC800,23M Siemens
6FX8002-5DA21-1CE0 POWER CABLE,PREFAB,TRAILING,MC800,24M Siemens
6FX8002-5DA21-1CF0 PRE,PWRCB,PERF,SZ1.5,15.2A,SHLD,BRK,25M Siemens
6FX8002-5DA21-1CH0 POWER CABLE 27M Siemens
6FX8002-5DA21-1CJ0 POWER CABLE,PREFAB,TRAILING,MC800,28M Siemens
6FX8002-5DA21-1CK0 POWER CABLE 29M Siemens
6FX8002-5DA21-1DA0 POWER CABLE,PREFAB,MC800,30M Siemens
6FX8002-5DA21-1DC0 POWER CABLE,PREFAB,TRAILING,MC800,32M Siemens
6FX8002-5DA21-1DD0 POWER CABLE,PREFAB,TRAILING,MC800,33M Siemens
6FX8002-5DA21-1DE0 POWER CABLE, PREFAB,MC800,34M Siemens
6FX8002-5DA21-1DF0 POWER CABLE,PREFAB,TRAILING,MC800,35M Siemens
6FX8002-5DA21-1DG0 POWER CABLE 36M Siemens
6FX8002-5DA21-1DH0 POWER CABLE,PREFAB,TRAILING,MC800,37M Siemens
6FX8002-5DA21-1DJ0 POWER CABLE,PREFAB,TRAILING,MC800,38M Siemens
6FX8002-5DA21-1EA0 POWER CABLE, PREFAB, 40M Siemens
6FX8002-5DA21-1EF0 POWER CABLE 45M Siemens
6FX8002-5DA21-1FA0 POWER CABLE,PREFAB,TRAILING,MC800,50M Siemens
6FX8002-5DA21-1FC0 POWER CABLE,PREAFB,TRAILING,MC800,52M Siemens
6FX8002-5DA21-1FF0 CABLE,POWER,PREFAB,TRAILING,MC800,55M Siemens
6FX8002-5DA21-1GA0 POWER CABLE,PREFAB,TRAILING,MC800,60M Siemens
6FX8002-5DA21-1GC0 POWER CABLE,PREFAB,TRAILING,MC800,62M Siemens
6FX8002-5DA21-1HA0 CABLE,POWER,PREFAB,TRAILING,MC800,70M Siemens
6FX8002-5DA23-1AD5 CABLE,POWER,PREFAB,TRAILING,MC800+,03.5M Siemens
6FX8002-5DA23-1AE0 POWER CABLE,PREFAB,MC800,4M Siemens
6FX8002-5DA23-1AF0 POWER CABLE 5 METERS Siemens
6FX8002-5DA23-1AG0 POWER CABLE,PREFAB,TRAILING,MC800,6M Siemens
6FX8002-5DA23-1AG5 POWER CABLE,PREFAB,TRAILING,MC800,6.5M Siemens
6FX8002-5DA23-1AH0 POWER CABLE,PREFAB,TRAILING,MC800,7M Siemens
6FX8002-5DA23-1AH5 POWER CABLE,PREFAB,TRAILING,MC800+,7.5M Siemens
6FX8002-5DA23-1BA0 PREFAB,PWRCB,SZ3,24.7MM,10M Siemens
6FX8002-5DA23-1BB0 POWER CABLE 11M Siemens
6FX8002-5DA23-1BC0 POWER CABLE,PREFAB,TRAILING,MC800,12M Siemens
6FX8002-5DA23-1BD0 PREFAB,PWRCB,PERF,SZ3,66A,SHLD,BRK,13M Siemens
6FX8002-5DA23-1BE0 PREFAB,PWRCB,SZ3,TRAILING,MC,14M Siemens
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6FX8002-5DA23-1BH0 POWER CABLE MOTION 800 17M Siemens
6FX8002-5DA23-1BJ0 POWER CABLE 18M Siemens
6FX8002-5DA23-1BK0 CABLE,POWER,PREFAB,TRAILING,MC800,19M Siemens
6FX8002-5DA23-1CA0 POWER CABLE 20M Siemens
6FX8002-5DA23-1CD0 POWER CABLE,PREFAB,TRAILING,MC800,23M Siemens
6FX8002-5DA23-1CE0 POWER CABLE MOTION 800 24M Siemens
6FX8002-5DA23-1CF0 POWER CABLE MOTION 800 25M Siemens
6FX8002-5DA23-1CG0 POWER CABLE,PREFAB,TRAILING,MC800,26M Siemens
6FX8002-5DA23-1CJ0 POWER CABLE,PREFAB,TRAILING,MC800,28M Siemens
6FX8002-5DA23-1CK0 POWER CABLE,PREFAB,TRAILING,MC800,29M Siemens
6FX8002-5DA23-1DA0 POWER CABLE 30M Siemens
6FX8002-5DA23-1DB0 POWER CABLE,PREFAB,TRAILING,MC800,31M Siemens
6FX8002-5DA23-1DC0 POWER CABLE,PREFAB 32M Siemens
6FX8002-5DA23-1DF0 CABLE,POWER,PREFAB,TRAIL,DMAX=24.7MM,35M Siemens
6FX8002-5DA23-1EA0 POWER CABLE 40M Siemens
6FX8002-5DA23-1EF0 POWER CABLE,PREFAB,45M Siemens
6FX8002-5DA23-1FA0 POWER CABLE 50M Siemens
6FX8002-5DA23-1HA0 CABLE,POWER,PREFAB,TRAILING,MC800,70M Siemens
6FX8002-5DA28-1AC5 CABLE,POWER,PREFAB,TRAILING,MC800, 2.5M Siemens
6FX8002-5DA28-1AD0 POWER CABLE,PREFAB,TRAILING,MC800, 3M Siemens
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6FX8002-5DA28-1AF0 CABLE,POWER,PREFAB,TRAILING,MC800+, 5M Siemens
6FX8002-5DA28-1AG0 POWER CABLE,PREFAB,TRAILING,MC800,6M Siemens
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6FX8002-5DA28-1AH5 CABLE,POWER,PREFAB,TRAIL,DMAX=12MM, 7.5M Siemens
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6FX8002-5DA28-1BA0 POWER CABLE,PREFAB,TRAILING,MC800, 10M Siemens
6FX8002-5DA28-1BA5 POWER CABLE,PREFAB,TRAILING,MC800,10.5M Siemens
6FX8002-5DA28-1BE0 CABLE,POWER,PREFAB,TRAILING,MC800+,14M Siemens
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6FX8002-5DA28-1BF0 POWER CABLE,PREFAB,TRAILING,MC800,15M Siemens
6FX8002-5DA28-1BG0 POWER CABLE,PREAFB,TRAILING,MC800,16M Siemens
6FX8002-5DA28-1BG3 POWER CABLE, PREFAB EXT.,MC800+,16.3M Siemens
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6FX8002-5DA31-1AB0 PREFAB,PWRCB,SZ2x1.5MM,MC 800,1M Siemens
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6FX8002-5DA31-1AH0 POWER CABLE 7M PREASSEMBLED 4X2.5+(2X1.5 Siemens
6FX8002-5DA31-1AJ0 POWER CABLE, PREASSEMBLED (8M) Siemens
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6FX8002-5DA31-1BD0 POWER CABLE 13M Siemens
6FX8002-5DA31-1BD5 CABLE,POWER,PREFAB,TRAILING,MC800+,13.5M Siemens
6FX8002-5DA31-1BE0 POWER CABLE,PREFAB,TRAILING,MC800,14M Siemens
6FX8002-5DA31-1BF0 POWER CABLE,PREFAB,TRAILING,MC800,15M Siemens
6FX8002-5DA31-1BG0 POWER CABLE 16M Siemens
6FX8002-5DA31-1BH0 POWER CABLE 17M Siemens
6FX8002-5DA31-1BJ0 PREFAB,PWRCB,PERF,SZ1.5,21A,BRK,SHLD,18M Siemens
6FX8002-5DA31-1BK0 POWER CABLE,PREFAB,TRAILING,MC800,19M Siemens
6FX8002-5DA31-1CA0 POWER CABLE 20M Siemens
6FX8002-5DA31-1CB0 PREFAB,PWRCB,TRAILING,MC 800,21M Siemens
6FX8002-5DA31-1CC0 SIGNAL CABLE 22M Siemens
6FX8002-5DA31-1CD0 POWER CABLE,PREFAB,TRAILING,MC800,23M Siemens
6FX8002-5DA31-1CE0 SIGNAL CABLE 24M Siemens
6FX8002-5DA31-1CF0 POWER CABLE 25 M Siemens
6FX8002-5DA31-1CG0 POWER CABLE,PREFAB,TRAILING,MC800,26M Siemens
6FX8002-5DA31-1CG5 POWER CBL,PREFAB,SZ1.5,TRLNG,MC800,26.5M Siemens
6FX8002-5DA31-1CH0 SIGNAL CABLE 27M Siemens
6FX8002-5DA31-1CJ0 POWER CABLE,PREFAB,TRAILING,MC800,28M Siemens
6FX8002-5DA31-1DA0 POWER CABLE,PREFAB,TRAILING,MC800,30M Siemens
6FX8002-5DA31-1DB0 POWER CABLE,TRAILING,MC800,31M Siemens
6FX8002-5DA31-1DC0 PREFAB,PWRCB,PERF,SZ1.5,21A,SHLD,BRK,32M Siemens
6FX8002-5DA31-1DD0 PREFAB,PWRCB,PERF,SZ1.5,21A,SHLD,BRK,33M Siemens
6FX8002-5DA31-1DF0 CABLE,POWER,PREFAB,TRAIL,DMAX=14.2MM,35M Siemens
6FX8002-5DA31-1DK0 POWER CABLE 39M Siemens
6FX8002-5DA31-1EA0 POWER CABLE,PREFAB,TRAILING,MC800,40M Siemens
6FX8002-5DA31-1EB0 PREFAB,PWRCB,PERF,SZ1.5,21A,SHLD,BRK,41M Siemens
6FX8002-5DA31-1EE0 PREFAB,PWRCB,PERF,SZ1.5,21A,SHLD,BRK,44M Siemens
6FX8002-5DA31-1EH0 CABLE,POWER,PREFAB,TRAIL,DMAX=14.2MM,47M Siemens
6FX8002-5DA31-1FA0 POWER CABLE,PREFAB,TRAILING,MC800,50M Siemens
6FX8002-5DA31-1GA0 POWER CABLE,PREFAB,TRAILING,MC800,60M Siemens
6FX8002-5DA31-1HF0 POWER CABLE,PREFAB,TRAILING,MC800,75M Siemens
6FX8002-5DA31-1KA0 POWER CABLE,PREFAB,TRAILING,MC800,90M Siemens
6FX8002-5DA33-1AC0 POWER CABLE 2M Siemens
6FX8002-5DA33-1AF0 POWER CABLE,PREFAB,TRAILING,MC800,5M Siemens
6FX8002-5DA33-1AG0 POWER CABLE,PREFAB,TRAILING,MC800,6M Siemens
6FX8002-5DA33-1AH0 POWER CABLE, PREFAB, MC800 7M Siemens
6FX8002-5DA33-1AJ0 POWER CABLE,PREFAB,TRAILING,MC800,8M Siemens
6FX8002-5DA33-1AK0 POWER CABLE,PREFAB,TRAILING,MC800,9M Siemens
6FX8002-5DA33-1BA0 POWER CABLE,PREFAB,TRAILING,MC800,10M Siemens
6FX8002-5DA33-1BB0 POWER CABLE,PREFAB,TRAILING,MC800,11M Siemens
6FX8002-5DA33-1BC0 POWER CABLE,PREFAB,TRAILING,MC800,12M Siemens
6FX8002-5DA33-1BD0 POWER CABLE,PREFAB,TRAILING,MC800,13M Siemens
6FX8002-5DA33-1BE0 POWER CABLE,PREFAB,TRAILING,MC800,14M Siemens
6FX8002-5DA33-1BF0 POWER CABLE,PREFAB,TRAILING,MC800,15M Siemens
6FX8002-5DA33-1BG0 POWER CABLE,PREFAB,TRAILING,MC800,16M Siemens
6FX8002-5DA33-1BH0 POWER CABLE,PREFAB,TRAILING,MC800,17M Siemens
6FX8002-5DA33-1CA0 POWER CABLE 20M Siemens
6FX8002-5DA33-1CE0 POWER CABLE, MC800, 24M Siemens
6FX8002-5DA33-1CG0 POWER CABLE, MC800, 26M Siemens
6FX8002-5DA33-1CJ0 POWER CABLE, MC800, 28M Siemens
6FX8002-5DA33-1CK0 POWER CABLE 29M Siemens
6FX8002-5DA33-1DA0 POWER CABLE 30M Siemens
6FX8002-5DA33-1DF0 POWER CABLE 35M Siemens
6FX8002-5DA33-1EA0 POWER CABLE 40M Siemens
6FX8002-5DA33-1EF0 POWER CABLE,PREFAB,TRAILING,MC800,45M Siemens
6FX8002-5DA33-1FA0 POWER CABLE,PREFAB,TRAILING,MC800,50M Siemens
6FX8002-5DA33-1JA0 POWER CABLE 80M Siemens
6FX8002-5DA38-1AC6 POWER CABLE,PREFAB,TRAILING,MC800,2.6M Siemens
6FX8002-5DA38-1AD0 POWER CABLE,PREASSEMBLED EXT,3M Siemens
6FX8002-5DA38-1AE0 POWER CABLE,PREFAB,TRAILING,MC800+,4M Siemens
6FX8002-5DA38-1AF0 POWER CABLE,PREFAB,TRAILING,MC800,5M Siemens
6FX8002-5DA38-1AG0 POWER CABLE, PREASSEMBLED EXT. 4X2.5+(2X Siemens
6FX8002-5DA38-1AH0 POWER CABLE,PREASSEMBLED EXT,MC800,7M Siemens
6FX8002-5DA38-1AJ5 POWER CABLE,PREFAB,TRAILING,MC800+,8.5M Siemens
