Why Calculating Volume of Pipe Fittings

There are less information on calculating the volume of Equal Tee, but people still want to know for many reasons, such as calculating the water capacity.

Here we will provide you some simple methods to calculation. And if you are interested in how to calculate, you can read following article and find your ideal method.

Equal Tee Volume Formula

They are more easily to calculate because their straight shape can be seen as straight pipes somehow connected to each other. So you can calculate its volume as straight pipes. Therefore, you should know the inner radius of equal tee and its height ( or length ) of the run and branch. And then insert the values into volume formula for a cylinder and add the results up.

Volume = pi ( or 3.14 )x radius squared x height.

By this way, you can get approximate volume of pipe tee

If this way doesn’t work for your situation, maybe the best way to calculate the volume is using water and a graduated container. The calculation of Unequal Tee is much more difficult, so you can choose this method.

ASME B16.9 Butt Weld Equal Tee

Sometimes you need to know the volume when you only have the diameter and schedule, or pressure, what should you do? Luckily, the volume chart can help you solve the problem.

Seamless Tee and Welded Tee ( ERW Equal Tee ) are both Butt Weld Tee, the specification standard is ASME B16.9. They have a large size range, so it is impossible to list all values.

The butt weld equal tee volume only varies with their nominal size. You can quickly find the value of volume, but this chart not includes all nominal sizes so you may not find the value you want to know.

 

Butt Weld Equal Tee Volume Chart

Nominal Size		Approx Volume/m3
DN	NPS
15	1/2	0.037*10-3
20	3/4	0.065*10-3
25	1	0.138*10-3
32	1 1/4	0.279*10-3
40	1 1/2	0.446*10-3
50	2	0.726*10-3
65	2 1/2	1.248*10-3
80	3	1.994*10-3
90	3 1/2	2.814*10-3
100	4	3.892*10-3
125	5	6.821*10-3
150	6	0.011
200	8	0.022
250	10	0.042
300	12	0.068
350	14	0.091
400	16	0.126
450	18	0.179
500	20	0.245
550	22	0.327
600	24	0.388
350	26	0.539
700	28	0.649
750	30	0.8
800	32	0.972
850	34	1.17
900	36	1.39
950	38	1.637
1000	40	1.913
1050	42	2.203
1100	44	2.401
1150	46	2.751
1200	48	3.137
1300	52	4.014
1400	56	4.952
1500	60	6.058

Socket Weld Equal Tee 

It is more like threaded tee in dimensions even though it is a weld connection fitting like a butt weld tee. The size range is 1/8 to 4 inch, and pressure rating is Class 3000, Class 6000 and Class 9000. The volume of Socket Weld Equal Tee is related to those two factors. In the volume chart, it lists the normal nominal size in the size range and all pressure ratings, which can meet the basic needs of users.

Threaded Equal Tee 

Threaded Tee and Socket Weld Tee are forgings and both complied to ASME B16.11, and they have same dimension range. So their volumes chart has the same values.

What’s more, all volumes in chart, is the outline volume of a single product and the space occupied when packing. In another word, they are the volumes of a packaged product.

ASME B16.11 Equal Tee Volume Chart

Nominal Size		Approx Volume/m3
DN	NPS	3000	6000	9000
6	1/8	0.03*10-3	0.04*10-3	–
8	1/4	0.04*10-3	0.04*10-3	–
10	3/8	0.04*10-3	0.06*10-3	–
15	1/2	0.06*10-3	0.20*10-3	0.30*10-3
20	3/4	0.20*10-3	0.30*10-3	0.46*10-3
25	1	0.30*10-3	0.46*10-3	0.66*10-3
32	1 1/4	0.46*10-3	0.66*10-3	1.09*10-3
40	1 1/2	0.66*10-3	1.09*10-3	1.52*10-3
50	2	1.09*10-3	1.52*10-3	2.52*10-3
65	2 1/2	1.52*10-3	2.35*10-3	–
80	3	2.48*10-3	3.62*10-3	–
100	4	3.98*10-3	–	–