8" x 8" Duct Wye with 8" x 6" Branch — $107.80
- Trunk: 8" x 8"
- Branch (x2): 8" x 6"
- Gauge: 24 ga
- Material: Galvanized Steel
- Connections: Slip & drive
- Fabrication: Made to order in Pittsburgh, PA
- Lead time: Ships in 1 business day
- Returns: Made to order, not returnable
Custom fabricated duct wye: 8" x 8" trunk with 8" x 6" branch, 24-gauge galvanized steel, slip-and-drive connections. Two 45 degree branches off the trunk.
8" x 8" Duct Wye with 8" x 6" Branch: sizing numbers
Worked out from this size's dimensions, so you can check it against your duct design before you order.
| Trunk free area | 0.44 sq ft (8" x 8") |
| Branch free area | each 0.33 sq ft (8" x 6") |
| Branch share of trunk area | each 75% |
| Trunk equivalent round duct | 8.7" diameter |
| Branch equivalent round duct | 7.6" diameter |
Airflow by velocity
| Air velocity | Trunk (0.44 sq ft) | Branch (0.33 sq ft) |
|---|---|---|
| 600 fpm | 265 CFM | 200 CFM |
| 700 fpm | 310 CFM | 235 CFM |
| 900 fpm | 400 CFM | 300 CFM |
| 1,200 fpm | 535 CFM | 400 CFM |
Airflow is free area times air velocity. Pick the row that matches the velocity your design uses; these figures are capacity at that velocity, not a pressure-loss calculation.
Questions about this size
How many CFM does an 8" x 8" wye with an 8" x 6" branch carry?
About 310 CFM at 700 fpm and 400 CFM at 900 fpm. The 8" x 8" trunk has 0.44 sq ft of free area, and airflow is free area times air velocity, so multiply 0.44 by the velocity your design calls for.
How much air does the 8" x 6" branch take from an 8" x 8" trunk?
Each branch opening has 0.33 sq ft of free area, 75% of the trunk's 0.44 sq ft. At the same velocity in both, that is about 235 of every 310 CFM in the trunk at 700 fpm. The real split depends on the duct system downstream and on balancing dampers.
What gauge is an 8" x 8" wye with an 8" x 6" branch made in?
24-gauge galvanized steel. PMX picks the gauge from the distance around the largest opening: the 8" x 8" trunk is 32" around, and openings that measure over 30" up to 54" around are built in 24 gauge. The configurator on this page lets you choose 26, 24, 22 or 20 gauge and re-prices it.
How much does an 8" x 8" wye with an 8" x 6" branch cost?
$107.80 as configured on this page: 24-gauge galvanized steel, made to order. The price comes from the same quoting engine that prices the cart, and changing any dimension in the configurator re-prices it. The same size is $146.80 in aluminum and $185.80 in stainless steel.
Can I order a duct wye in a different size?
Yes. This page is one published size; the configurator above is loaded with these dimensions and every one of them can be changed to the size you measured, in galvanized steel, aluminum or stainless steel. Each fitting is cut and formed for the order in Pittsburgh, PA.
How fast does an 8" x 8" wye with an 8" x 6" branch ship, and can it be returned?
It ships in 1 business day from our Pittsburgh, PA shop, by UPS or by LTL freight for large orders, anywhere in the continental US. Shipping is calculated at checkout from the order's weight and destination. Because it is made to the dimensions you order, it is not returnable.
About this size
This page is the 8" x 8" Duct Wye with 8" x 6" Branch configuration of our duct wye. It is cut and formed for this order — nothing here is a stock import part. The configurator above is loaded with these exact dimensions, so you can add it to the cart as-is, or change a dimension and it re-prices instantly.