Box Gutter Sump Overflow

This free online box gutter calculator will calculate the size of box gutters and sumps with a side overflow in accordance with the australian plumbing code as nzs 3500 3 2003 part 3 storm water drainage.

Box gutter sump overflow.

The hydraulic capacity of these overflow devices must not be less than the design flow for the. Read off sump depth 175. It depends on the value of ioc. The side with the maximum flow is used to size the box gutter.

From before max flow 10l s. 2015 3 7 4 layout. Method used the method used is based on the flow chart fig 3 1 as nzs 3500 3 2003 downpipe and sump depth from fig i4 with minimum sump depth 150mm. All of the above options provide overflow provision to the box gutter.

The total flow is used to size the sump and overflow. Rainheads are an essential design element for buildings where internal box or trough gutters are used. Or c a sump with a high capacity overflow device. Box gutter design to as 3500 3 2015.

Overflow devices consider whether the discharge of the box gutter is to. Rainhead overflow or specific box gutter overflow must be at least 30mm below the height of the back of the box gutter. Intersect with chosen dp choose 125 dia. This effectively states that all box gutters must allow for 30mm of freeboard which is from the overflow point eg.

It acts as an external overflow point to reduce water surges into the stormwater system and aid the flow of water down. A rainhead or sump is a container located between the gutter and downpipe that aids the flow of water away from the roof. A a rainhead b a sump with a side overflow device. Box gutter sump size with vertical overflow.