Straightening Vane Dimensions (in)
A straightening vane is used to straighten the gas flow before going into a gas meter to ensure accurate measurement. When installed upstream with the correct pipe length, it will reduce the turbulence before entering a metering devise such as an orifice flanges or flow meter. This will insure a more accurate meter reading. One type can be held between two flanges and another secured inside the pipe with set screw on the outside.
Straightening Vane Standards
- For fabrication requirements, see ASME MFC-3M
Straightening Vane Datasheet
Pipe Size (NPS) | Bundle Type | Pipe I.D. | Length of Vane A | O.D of VaneB | O.D. of Tubes | Wall Thickness of Tubes | Number of Tubes | Number and Size of Screws | Approx. Weight Flange Type(lb) | Approx. Weight Line Type (lb) | Flange O.D. |
---|---|---|---|---|---|---|---|---|---|---|---|
2 |
I |
2.067 |
6 | 1 31/32 | 21/32 | .095 | 7 | 1 - 3/8 x 3/4 | 3 | 2 | 3 5/8 |
2 |
I |
1.939 |
6 | 1 29/32 | 21/32 | .095 | 7 | 1 - 3/8 x 3/4 | 3 | 2 | 3 5/8 |
3 |
II |
3.068 |
8 | 2 7/8 | 19/32 | .049 | 19 | 1 - 3/8 x 3/4 | 4 | 3 | 5 |
3 | II | 2.900 | 8 | 2 3/4 | 9/16 | .049 | 19 | 1 - 3/8 x 3/4 | 4 | 3 | 5 |
4 | II | 4.026 | 10 | 3 31/32 | 13/16 | .049 | 19 | 1 - 3/8 x 3/4 | 8 | 7 | 6 3/16 |
4 | III | 3.826 | 10 | 3 3/4 | 3/4 | .049 | 19 | 1 - 3/8 x 1 | 8 | 7 | 6 3/16 |
5 | II | 5.047 | 12 | 4 27/32 | 1 | .049 | 19 | 1 - 1/2 x 1 | 11 | 9 | 7 5/16 |
6 | II | 6.065 | 12 | 5 15/16 | 1 7/32 | .049 | 19 | 1 - 1/2 x 1 | 21 | 19 | 8 1/2 |
6 | II | 5.761 | 12 | 5 5/8 | 1 5/32 | .049 | 19 | 1 - 1/2 x 1 | 21 | 19 | 8 1/2 |
8 | II | 7.625 | 16 | 7 15/32 | 1 1/2 | .065 | 19 | 1 - 1/2 x 1 | 37 | 35 | 10 5/8 |
8 | II | 7.981 | 16 | 7 29/32 | 1 5/8 | .065 | 19 | 1 - 1/2 x 1 | 37 | 35 | 10 5/8 |
10 | III | 10.136 | 20 | 10 | 2 | .083 | 19 | 1 - 1/2 x 1 | 57 | 54 | 12 3/4 |
10 | II | 10.020 | 20 | 9 3/4 | 2 | .083 | 19 | 1 - 1/2 x 1 | 57 | 54 | 12 3/4 |
12 | III | 12.090 | 24 | 11 7/8 | 2 3/8 | .083 | 19 | 2 - 1/2 x 1 1/4 | 81 | 77 | 15 |
12 | III | 11.374 | 24 | 11 1/4 | 2 1/4 | .095 | 19 | 2 - 1/2 x 1 1/4 | 81 | 77 | 15 |
12 | II | 11.938 | 24 | 11 5/8 | 2 3/8 | .083 | 19 | 2 - 1/2 x 1 1/4 | 81 | 77 | 15 |
14 | III | 13.25 | 28 | 13 1/8 | 2 5/8 | .083 | 19 | 2 - 1/2 x 1 1/4 | 105 | 100 | 16 1/4 |
14 | II | 13 | 28 | 12 3/4 | 2 5/8 | .083 | 19 | 2 - 1/2 x 1 1/4 | 105 | 100 | 16 1/4 |
16 | III | 15.250 | 30 | 15 | 3 | .188 | 19 | 2 - 1/2 x 1 1/4 | 274 | 268 | 18 1/2 |
16 | II | 15.500 | 30 | 14 18/32 | 3 | .188 | 19 | 2 - 1/2 x 1 1/4 | 274 | 268 | 18 1/2 |
18 | II | 16.876 | 36 | 16 23/32 | 3 7/16 | .188 | 19 | 2 - 1/2 x 1 1/4 | 386 | 378 | 21 |
20 | II | 19.250 | 40 | 18 27/32 | 3 7/8 | .188 | 19 | 2 - 1/2 x 1 1/4 | 477 | 468 | 23 |
24 | II | 23.250 | 48 | 23 1/8 | 4 3/4 | .188 | 19 | 2 - 1/2 x 1 1/2 | 704 | 693 | 27 1/4 |
26 | III | 25.250 | 52 | 25 | 5 | .188 | 19 | 2 - 1/2 x 1 1/2 | 814 | 796 | 29 1/2 |
30 | III | 29.250 | 60 | 28 3/4 | 5 3/4 | .188 | 19 | 2 - 1/2 x 1 1/2 | 1295 | 1273 | 33 3/4 |
34 | II | 33.250 | 68 | 32 13/16 | 6 3/4 | .250 | 19 | 2 - 1/2 x 1 1/2 | 1880 | 1860 | 38 |
36 | III | 35.250 | 72 | 35 | 7 | .188 | 19 | 2 - 1/2 x 1 1/2 | 1582 | 1559 | 40 1/4 |