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API Eccentric Hemisphere Valve

29 Dec 2019 13:50:00 source:aen-valve.com browse:5533
  • Introduction
  • Technical Parameters

Eccentric hemisphere valve, double eccentric ball valve have the following advantages:

1. The side-mounted type is compact in structure and light in weight, and is suitable for occasions requiring valve installation space.

2. The fluid resistance is small, and its resistance coefficient is equal to the pipe length of the same length.

3. Simple structure, small size and light weight.

4. With cutting function, it can cut off the debris (twigs, textile bags, etc.) in the medium when closed.

5. It is tight and reliable. The sealing surface material of the ball valve is widely used in plastic and has good sealing performance. It has also been widely used in vacuum systems.

6. Easy operation, fast opening and closing, only need to rotate 90 ° from fully open to fully closed, which is convenient for long-distance control.

7. Easy maintenance, simple structure of ball valve, seal ring is generally movable, and it is more convenient to disassemble and replace.

8. When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium, and the medium will not cause erosion of the valve sealing surface when the medium passes.

9. Wide range of applications, from small diameter to several millimeters, large to several meters, can be applied from high vacuum to high pressure. When the ball is rotated 90 degrees, the spherical surface should be present at the entrance and exit, so as to intercept the flow.

Nominal

Pressure

Nominnal

Diameter

Connection Dimensions(mm) Sealing

Flange

Thickness

(C)

Flange neck
L D K Bolt d f N R
Qty(n) Standard
Class 150 2" 178 165 125 4 M16 99 2 20 84 5
3" 190 185 145 4 M16 118 2 20 104 6
4" 203 200 160 8 M16 132 2 20 120 6
5" 229 220 180 8 M16 156 2 22 140 6
6" 254 250 210 8 M16 184 2 22 170 6
8" 267 285 240 8 M20 211 2 24 190 8
10" 292 340 295 12 M20 266 2 24 246 8
12" 330 405 355 12 M24 319 2 26 296 10
14" 355 460 410 12 M24 370 2 28 350 10
16" 450 520 470 16 M24 429 2 30 410 10
18" 530 580 525 16 M27 480 2 32 458 10
20" 580 640 585 20 M27 548 2 40 516 12
24" 660 715 650 20 M30 609 2 44 576 12
28" 680 840 770 20 M33 720 2 54 690 12
32" 900 910 840 24 M33 794 5 40 760 12
36" 1000 1025 950 24 M36 901 5 42 862 12
40" 1100 1125 1050 28 M36 1001 5 44 962 12
44" 1200 1255 1170 28 M39 1112 5 46 1076 12
48" 1300 1485 1390 32 M45 1328 5 52 1282 12
56" 1500 1685 1590 36 M45 1530 5 58 1482 12

Nominal

Pressure

Nominnal

Diameter

Connection Dimensions(mm) Sealing

Flange

Thickness

(C)

Flange neck
L D K Bolt d f N R
Qty(n) Standard
Class 300 2" 178 165 125 4 M16 99 2 20 84 5
3" 190 185 145 8 M16 118 2 22 104 6
4" 203 200 160 8 M16 132 2 24 120 6
5" 229 220 190 8 M20 156 2 24 142 6
6" 254 250 220 8 M24 184 2 26 162 6
8" 267 285 250 8 M24 211 2 28 192 8
10" 292 340 310 12 M24 274 2 30 252 8
12" 330 405 370 12 M27 330 2 32 304 10
14" 355 460 430 16 M27 389 2 34 364 10
16" 450 520 490 16 M30 448 2 38 418 10
18" 530 580 550 16 M33 503 2 40 472 10
20" 580 640 600 20 M33 548 2 46 520 12
24" 660 715 660 20 M33 609 2 48 580 12
28" 680 840 770 20 M36 720 2 58 684 12
32" 900 910 875 24 M39 820 5 50 780 12
36" 1000 1025 990 24 M45 928 5 54 882 12
40" 1100 1125 1090 28 M45 1028 5 58 982 12
44" 1200 1255 1210 28 M52 1140 5 62 1086 12
48" 1300 1485 1420 32 M52 1350 5 70 1296 12
56" 1500 1685 1640 36 M56 1560 5 76 1508 12
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