С. 12 ГОСТ 21980-76
Зависимость коэффициента расхода ц or А идля С * l,S
Т а б л и ц а
3
Коэффициент расхода при А
"ф
0.S
0.55
0.6
0.65
0.70,750.8
0.850.9
%
1
5
1.03 0
.
5 0.564 0.536
1.04 0.596 0.562 0.534
1.05 0,597 0.562 0.534
1.06 0.600 0.564 0.534
1.07 0.602 0.566 0.536
1,08 0.606 0.569 0.538
1.09 0.609 0.572 0.539
1.10 0.612 0.575 0,541
.Н
0.615 0.578 0.544
1.12
0.6180.5810.547
1.130.6220.5850.550
1.140.6260.5890.553
1,150.6290.5920.556
1.160.6320.5950.559
1,170.6350.5980.562
1.180.6380.6010.566
1,19
0.6410.6040.570
1.200.6440.6070.574
1.250.6560.6200.588
1.300.6660.6340.602
1.350.6760.6430.612
1.400.6840.6520.622
1.450.6890.6600.630
1.500.6960.6660.637
1.550.7000.6720,644
1,600.7040.6770.649
1.650.7080.6810.654
1.700.7110.6850.657
1.750,7140.6880.661
1.800.7160.6900.664
1.850.7180.6940.664
1,900.7200
.
6
%
0.670
1.950,7220.6980.672
2.000.7240.7000,674
0,5050.4800.4480.430
0.5020,4780.4460.429
0,5010,4770.4450.428
0.5010.4770.4460.429
0,5030.4780.4480.431
0.5040.4800.4490.433
0,5070.4830,4520.436
0.5100.4850.4550.439
0,5130.4880,4580.442
0.5160.4910.4610.445
0,5190,4940,4640.448
0.5210,4970.4670.451
0,5240,5000,4700.454
0.5270,5030.4730.457
0,5300,5060,4770.460
0.5330.5090.4810.463
0,5360.5120,4850.466
0.5400,5160,4890.469
0,5540.5290,5030,482
0.5680.5440,5180.495
0,5790.5540,5300,506
0,5900.5650,5420.518
0,5970,5740,5520,528
0.6060,5820.5600.537
0.6120.5900.5680,545
0.6180
. %
0,5740.552
0.6240.6010.5800,557
0.6280.6060,5850.563
0.6320.6110.5900,568
0,6350.6140.5940.572
0.6390.6180.5980,576
0.6420.6220.6020.580
0.6440.6250.6940,583
0.6460.6270.6070.586
0.4130.395
0,4120.394
0,4120.394
0,4120.394
0,4130.395
0,4150.397
0,4170.399
0,4200.401
0,4230.404
0,4260.407
0,4290.410
0,4310.413
0,4340.416
0,4370.419
0,4400.421
0,4420.423
0,4460.426
0,4480.429
0,4610.442
0,4750.456
0,4850.466
0,4980.478
0.5080.488
0.5180.498
0.5250.506
0.5320.513
0.5380.519
0,5440.525
0.5490.530
0.5530.534
0.5570.538
0.5610
.
S
42
0.5640.546
0.5670.548
Продолжение табл. 3
Коэффициент расхода при А
Ч
0.951.0
1.1
1.21.3
1,4
1.5
1.61.7
%
1,030,3790.3640.338
1.940.3780.3630,337
1.050,3760.3620.336
1.060.3370.3620.336
1,070,3780.3620.337
1.080.3800.3630.338
1,09
0,3820.3650.340
1.100.3850,3670,342
1.11
0,3880,3690,344
1.120.3910,3720.346
1.130,3940,3750.348
1.140.3970,3780,351
1.150.4000.3810,354
1.160.4030,3840,357
0,3160,297
0,3150.295
0,3140.294
0,3140.294
0,3150.294
0,3160
.
2
0,3170,297
0,3190.298
0,3210.300
0,3230.302
0,3250.304
0,3270.306
0,3290.308
0,3310,310
0.2840,271
0.2820,269
0.2800.267
0,2790,266
0.2780.266
0,2790,266
0,2800.267
0,2820,268
0.2840.270
0,2860,272
0.2880,274
0.2910,276
0.2930.278
0,2950,280
0.2530.240
0.2520.239
0.2500.237
0.2500.237
0.2500.237
0.2500.237
0.2510.238
0.2520.239
0.2530.240
0.2540.241
0.2550.242
0.2560.243
0.2570.244
0.2590.246