Product Dimensions

Rainheads

Standard Rainhead Dimensions (R series) - Includes Flat Back Models

Rain Head Size	Width (mm)	Height (mm)	Length (mm)	Max Box Gutter Width (mm)	Max Box Gutter Receiver Depth 'D' (mm)	Max. Flowrate in Normal Operation*	Overflow Capacity

R 200	265	350	205	200	200	5.0 l/second	Greater than 16 l/sec
R 300	365	450	245	300	200	9.5 l/second	Greater than 16 l/sec
R 400	465	600	325	400	250	16.0 l/second	Greater than 16 l/sec
R 500	565	650	325	500	275	16.0 l/second	Greater than 16 l/sec
R 600	665	700	325	600	300	16.0 l/second	Greater than 16 l/sec

*This figure is also dependent on the size of the downpipe selected (for rainheads) and on the size of the downpipe and overflow pipes (in the case of sumps). Please refer to the Dam Buster Product Technical Statement and Quick Design Guide for specific information about allowable down pipe and product size combinations for all of these products.

Stretched* Rainhead Dimensions (R-200-xxx & R-300-xxx series) - Includes Flat Back Models

Rain Head Size	Width (mm)	Height (mm)	Length (mm)	Max Box Gutter Width (mm)	Max Box Gutter Receiver Depth 'D' (mm)	Max. Flowrate in Normal Operation**	Overflow Capacity
R 200-300	365	350	205	300	200	5.0 l/second	Greater than 16 l/sec
R 300-350	415	450	245	350	200	9.5 l/second	Greater than 16 l/sec
R 300-380	445	450	245	380	200	9.5 l/second	Greater than 16 l/sec
R 300-400	465	450	245	400	200	9.5 l/second	Greater than 16 l/sec
R 300-450	515	450	245	450	200	9.5 l/second	Greater than 16 l/sec
R 300-500	565	450	245	500	200	9.5 l/second	Greater than 16 l/sec
R 300-600	665	450	245	600	200	9.5 l/second	Greater than 16 l/sec

*The Rainhead (including the box gutter receiver) is stretched in the direction perpendicular to the box gutter. These models provide a lower profile rainhead based on either the R-200 or R-300, but still accommodate box gutter widths up to 600mm depending on model.

**This figure is also dependent on the size of the downpipe selected (for rainheads) and on the size of the downpipe and overflow pipes (in the case of sumps). Please refer to the Dam Buster Product Technical Statement and Quick Design Guide for specific information about allowable down pipe and product size combinations for all of these products.

Curved Rainhead Dimensions (CR series) - Includes Flat Back Models

Rain Head Size	Width (mm)	Height (mm)	Length (mm)	Max Box Gutter Width (mm)	Max Box Gutter Receiver Depth 'D' (mm)	Max. Flowrate in Normal Operation*	Overflow Capacity

CR-200	265	350	240	200	200	5.0 l/second	Greater than 16 l/sec
CR-300	365	450	290	300	200	9.5 l/second	Greater than 16 l/sec
CR-400	465	600	375	400	250	16.0 l/second	Greater than 16 l/sec
CR-500	565	650	375	500	275	16.0 l/second	Greater than 16 l/sec
CR-600	665	700	375	600	300	16.0 l/second	Greater than 16 l/sec

Widened* Rainhead Dimensions (WR-200+ & WR-300+)

Rain Head Size	Width (mm)	Height (mm)	Length (mm)	Max Box Gutter Width (mm)	Max Box Gutter Receiver Depth 'D' (mm)	Max. Flowrate in Normal Operation**	Overflow Capacity
WR-200+	365	350	205	200	200	5.0 l/second	Greater than 16 l/sec
WR-300+	465	450	245	300	200	9.5 l/second	Greater than 16 l/sec

*The Rainhead (excluding the box gutter receiver) is widened in the direction perpendicular to the box gutter. These models are designed to cover unsightly construction gaps either side of the box gutter parapet penetration.

Sumps

Standard Sump Dimensions

Sump Size	Width (mm)	Depth (mm)	Length (mm)	Overall Depth (mm)	Max Box Gutter Width (mm)	Max. permissible Flowrate*
SU-200-100	205	100	400	300	200	3.4 l/second
SU-200-150	205	150	400	350	200	6.25 l/second
SU-300-75	305	75	400	280	300	3.4 l/second
SU-300-125	305	125	400	330	300	5.7 l/second
SU-300-200	305	200	400	405	300	7.3 l/second
SU-400-150	405	150	400	400	400	12.2 l/second
SU-400-200	405	200	400	450	400	16.0 l/second
SU-500-150	505	150	400	300	500	12.2 l/second
SU-500-200	505	200	400	400	500	16.0 l/second
SU-600-150	605	150	400	300	600	12.2 l/second
SU-600-200	605	200	400	400	600	16.0 l/second

Continuous Sump Dimensions - same as Standard Sumps

Sump Size	Width (mm)	Depth (mm)	Length (mm)	Overall Depth (mm)	Max Box Gutter Width (mm)	Max. Permissible Flowrate*
SU-200-100	205	100	400	300	200	3.4 l/second
SU-200-150	205	150	400	350	200	6.25 l/second
SU-300-75	305	75	400	280	300	3.4 l/second
SU-300-125	305	125	400	330	300	5.7 l/second
SU-300-200	305	200	400	405	300	7.3 l/second
SU-400-150	405	150	400	400	400	12.2 l/second
SU-400-200	405	200	400	450	400	16.0 l/second
SU-500-150	505	150	400	300	500	12.2 l/second
SU-500-200	505	200	400	400	500	16.0 l/second
SU-600-150	605	150	400	300	600	12.2 l/second
SU-600-200	605	200	400	400	600	16.0 l/second

Direction Change Devices

'T' Side Outlet Dimensions

Side Outlet Size	Rainhead Size	Width (mm)	Step (mm)	INLET Depth, Di (mm)	OUTLET Depth, Do (mm)	Box Gutter Width Range (mm)	Fixed Outlet Width (mm)
TSO-200	R-200 or CR-200	200	50	150	200	200 to 350	200
TSO-300	R-300 or CR-300	300	60	140	200	300 to 450	300
TSO-400	R-400 or CR-400	400	70	180	250	400 to 600	400

'End' Side Outlet Dimensions

Side Outlet Size	Rainhead Size	Width (mm)	Step (mm)	INLET Depth, Di (mm)	OUTLET Depth, Do (mm)	Box Gutter Width Range (mm)	Fixed Outlet Width (mm)
ESO-200 L or R	R-200 or CR-200	200	50	150	200	200 to 350	200
ESO-300 L or R	R-300 or CR-300	300	60	140	200	300 to 450	300
ESO-400 L or R	R-400 or CR-400	400	70	180	250	400 to 600	400

'Corner' Side Outlet Dimensions

Side Outlet Size	Rainhead Size	Width (mm)	Step (mm)	INLET Depth, Di (mm)	OUTLET Depth, Do (mm)	Box Gutter A Width Range (mm)	Box Gutter B Width Range (mm)	Fixed Outlet Width (mm)
CSO-200 L or R	R-200 or CR-200	200	50	150	200	200 to 350	200	200
CSO-300 L or R	R-300 or CR-300	300	60	140	200	300 to 450	300	300
CSO-400 L or R	R-400 or CR-400	400	70	180	250	400 to 600	400	400

'Cruciform' Side Outlet Dimensions

Side Outlet Size	Rainhead Size	Width (mm)	Step (mm)	INLET Depth, Di (mm)	OUTLET Depth, Do (mm)	Box Gutter A Width Range (mm)	Box Gutter B Width Range (mm)	Fixed Outlet Width (mm)
XSO-200	R-200 or CR-200	200	50	150	200	200 to 350	200	200
XSO-300	R-300 or CR-300	300	60	140	200	300 to 450	300	300
XSO-400	R-400 or CR-400	400	70	180	250	400 to 600	400	400

TEE JUNCTION Dimensions

Tee Junction Size	Upstream Contraction Range (mm)	Downstream Width (mm)	Step (mm)	INLET Depth, Di (mm)	OUTLET Depth, Do (mm)
TJN-200	200 (fixed)	197	50	180	230
TJN-300	200 to 300	297	60	215	275
TJN-400	300 to 400	397	70	230	300

CORNER JUNCTION Dimensions

Corner Junction Size	Downstream Width (mm)	Step (mm)	INLET Depth, Di (mm)	OUTLET Depth, Do (mm)	Box Gutter 4 Contraction Range (mm)	Box Gutter B Width Range (mm)
CJN-200 L or R	197	50	180	230	200	200
CJN-300 L or R	297	60	215	275	200 to 300	300
CJN-400 L or R	397	70	230	300	300 to 400	400

ELBOW Dimensions

Elbow Size	Upstream Contraction Range (mm)	Downstream Width (mm)	Step (mm)	INLET Depth, Di (mm)	OUTLET Depth, Do (mm)
ELB-200 L or R	200 (fixed)	197	50	180	230
ELB-300 L or R	200 to 300	297	60	215	275
ELB-400 L or R	300 to 400	397	70	230	300
ELB-500 L or R	300 to 500	497	70	230	300
ELB-600 L or R	400 to 600	597	70	230	300

For more information on any of these products please consult the Dam Buster Product Technical Statement

Customer Reviews

Jane Smith

I love these products. Easy to install, look fantastic and are fully compliant, via performance solution. I have installed multiple rain heads along with the box gutter elbow. If you set up your box gutter correctly, these both seamlessly install.

These guys stand by their product and the customer service and support is second to none. If you have a single drama with any of the dam buster products, they will have your back straight away with whatever you need.

CALLUM WHITE

We’ve just used Dam Buster’s beautiful rainheads on a recent residential project. As an architect and builder we’re often struggling to find the balance between form and function and these rainheads do exactly that. They’re an elegant design and we love the generously sized concealed overflow. We’re very happy with the quality of the product - it feels robust, it’s accurately built, and the spare backing plate was a handy addition...it allowed for easy on-site modifications to suit an oddly shaped gutter. Thanks guys!

ANDREW CARTER

David from Dam Buster provided invaluable assistance in navigating NCC regulations regarding rain heads. His expertise helped me grasp why certain products comply while others don’t. He also shed light on my builder’s attempt to push a non-compliant solution. Grateful for his insights!

THEO SFINDILIS

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