Tech Specifications
Flexible Duct Sizing Guide
| MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|
| 44 l/S | Ø 150 |
| 92 l/S | Ø 200 |
| 170 l/S | Ø 250 |
| 275 l/S | Ø 300 |
| 385 l/S | Ø 350 |
| 503 l/S | Ø 400 |
| 636 l/S | Ø 450 |
| 785 l/S | Ø 500 |
| 950 l/S | Ø 550 |
Streemline Diffuser Sizing
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| SL2WS15 | 280x140 | 44 l/S | Ø 150 |
| SL2WS20 | 280x140 | 92 l/S | Ø 200 |
| SL2WL20 | 360x180 | 92 l/S | Ø 200 |
| SL2WL25 | 360x180 | 170 l/S | Ø 250 |
| SL2WL30 | 360x180 | 275 l/S | Ø 300 |
| SL3020 | 280x280 | 92 l/S | Ø 200 |
| SL3025 | 280x280 | 170 l/S | Ø 250 |
| SL3030 | 280x280 | 275 l/S | Ø 300 |
| SL4030 | 360x360 | 275 l/S | Ø 300 |
| SL4035 | 360x360 | 385 l/S | Ø 350 |
| SL4040 | 360x360 | 503 l/S | Ø 400 |
| SL5440 | 540x360 | 503 l/S | Ø 400 |
| SL5445 | 540x360 | 636 l/S | Ø 450 |
| SL5450 | 540x360 | 785 l/S | Ø 500 |
| SL5455 | 540x360 | 950 l/S | Ø 550 |
Silhouette Diffuser Sizing
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| ST30 | 280x280 | 92 l/S | Ø 200 |
| ST30 | 280x280 | 170 l/S | Ø 250 |
| ST30 | 280x280 | 275 l/S | Ø 300 |
| ST60 | Half T Bar | 92 l/S | Ø 200 |
| ST60 | Half T Bar | 170 l/S | Ø 250 |
| ST60 | Half T Bar | 275 l/S | Ø 300 |
| ST60 | Half T Bar | 385 l/S | Ø 350 |
| ST60 | Half T Bar | 503 l/S | Ø 400 |
Sunline Diffuser Sizing (Discontinued)
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| SUN20 | Ø 200 | 92 l/S | Ø 200 |
| SUN25 | Ø 250 | 170 l/S | Ø 250 |
| SUN30 | Ø 300 | 275 l/S | Ø 300 |
Sunline Diffuser Sizing
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| SJ15 | Ø 150 | 44 l/S | Ø 150 |
| SJ20 | Ø 200 | 92 l/S | Ø 200 |
Floorline Grille Sizing
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| FL15 | 310x100 | 44 l/S | Ø 150 |
| FL20 | 310x100 | 92 l/S | Ø 200 |
Linear Elite Diffuser Sizing
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| LIN20 | 1200x100 | 92 l/S | Ø 200 |
| LIN25 | 1200x100 | 170 l/S | Ø 250 |
Baby Linear Grille Diffuser Sizing
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| BLIN20 | 560x83 | 92 l/S | Ø 200 |
| BLIN25 | 560x83 | 150 l/S | Ø 250 |
Purtech Return Air Grille
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| PUR9040 | 900x400 | 184 l/S | 2 x Ø 200 |
| PUR9040 | 900x400 | 340 l/S | 2 x Ø 250 |
| PUR9040 | 900x400 | 550 l/S | 2 x Ø 300 |
| PUR7555 | 750x550 | 636 l/S | 1 x Ø 450 |
| PUR1260 | 1200x600 | 770 l/S | 2 x Ø 350 |
| PUR1260 | 1200x600 | 1006 l/S | 2 x Ø 400 |
Slimline Return Air Grille
| MODEL NO. | NOMINAL SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) | FLEXIBLE DUCT DIA (mm) |
|---|---|---|---|
| HRAG | 550x400 | 92 l/S | Ø 200 |
| HRAG | 550x400 | 170 l/S | Ø 250 |
| HRAG | 550x400 | 275 l/S | Ø 300 |
| HRAG | 550x400 | 385 l/S | Ø 350 |
Door grille Sizing
| SIZE (mm) | MAX RECOMMENDED AIR QUANTITY (l/s) |
|---|---|
| 600x150 | 120 l/s |
| 600x200 | 155 l/s |
| 600x250 | 190 l/s |
| 600x300 | 235 l/s |
| 600x350 | 275 l/s |
| 600x400 | 315 l/s |
| 600x450 | 350 l/s |
| 600x600 | 465 l/s |
Grille Sizing
| APPLICATION | MAX RECOMMENDED VELOCITY (m/s) |
|---|---|
| Return air grille at high level | 1.75 |
| Return air grille at low level | 1.50 |
| Return air grille for low noise level | 1.25 |
| Wall registers | 2.50 |
| Fresh air grilles | 1.50 |
| Discharge louvres | 1.50 |
Conversions
| CONVERT | TO | MULTIPLE |
|---|---|---|
| Litres per second(l/s) | Cubic feet per minute(cfm) | l/s X 2.119 |
| Cubic feet per minute(cfm) | Litres per second (l/s) | cfm X 0.4719 |
| Hp (refrigeration) | Watts (refrigeration) | Hp X 2.595(nominal) |
| Ton (refrigeration) | kW (refrigeration) | Tons X 3.5168 |
| BTU/hr | Watts (refrigeration) | BTU/hr X 0.293 |
| Inches (in) | Millimetres (mm) | in X 25.4 |
| Square inches(sq in) | Square millimetres (mm2) | sq in X 645.16 |
| Square feet (sq ft) | Square metres (m2) | sq ft X 0.0929 |
| Inches water (in H2O) | Pascals (Pa) | in water X 249 |
| Pounds (lb) | Kilograms (kg) | lb X 0.45359 |
