Technical Specifications

Technical Specifications

Flexible Duct Sizing Guide

MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
44 l/SØ 150
92 l/SØ 200
170 l/SØ 250
275 l/SØ 300
385 l/SØ 350
503 l/SØ 400
636 l/SØ 450
785 l/SØ 500
950 l/SØ 550

Streemline Diffuser Sizing

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
SL2WS15280×14044 l/SØ 150
SL2WS20280×14092 l/SØ 200
SL2WL20360×18092 l/SØ 200
SL2WL25360×180170 l/SØ 250
SL2WL30360×180275 l/SØ 300
SL3020280×28092 l/SØ 200
SL3025280×280170 l/SØ 250
SL3030280×280275 l/SØ 300
SL4030360×360275 l/SØ 300
SL4035360×360385 l/SØ 350
SL4040360×360503 l/SØ 400
SL5440540×360503 l/SØ 400
SL5445540×360636 l/SØ 450
SL5450540×360785 l/SØ 500
SL5455540×360950 l/SØ 550

Silhouette Diffuser Sizing

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
ST30280×28092 l/SØ 200
ST30280×280170 l/SØ 250
ST30280×280275 l/SØ 300
ST60Half T Bar92 l/SØ 200
ST60Half T Bar170 l/SØ 250
ST60Half T Bar275 l/SØ 300
ST60Half T Bar385 l/SØ 350
ST60Half T Bar503 l/SØ 400

Sunline Diffuser Sizing (Discontinued)

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
SUN20Ø 20092 l/SØ 200
SUN25Ø 250170 l/SØ 250
SUN30Ø 300275 l/SØ 300

Sunline Diffuser Sizing

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
SJ15Ø 15044 l/SØ 150
SJ20Ø 20092 l/SØ 200

Floorline Grille Sizing

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
FL15310×10044 l/SØ 150
FL20310×10092 l/SØ 200

Linear Elite Diffuser Sizing

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
LIN201200×10092 l/SØ 200
LIN251200×100170 l/SØ 250

Baby Linear Grille Diffuser Sizing

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
BLIN20560×8392 l/SØ 200
BLIN25560×83150 l/SØ 250

Purtech Return Air Grille

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
PUR9040900×400184 l/S2 x Ø 200
PUR9040900×400340 l/S2 x Ø 250
PUR9040900×400550 l/S2 x Ø 300
PUR7555750×550636 l/S1 x Ø 450
PUR12601200×600770 l/S2 x Ø 350
PUR12601200×6001006 l/S2 x Ø 400

Slimline Return Air Grille

MODEL NO.NOMINAL SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)FLEXIBLE DUCT DIA (mm)
HRAG550×40092 l/SØ 200
HRAG550×400170 l/SØ 250
HRAG550×400275 l/SØ 300
HRAG550×400385 l/SØ 350

Door grille Sizing

SIZE (mm)MAX RECOMMENDED AIR QUANTITY (l/s)
600×150120 l/s
600×200155 l/s
600×250190 l/s
600×300235 l/s
600×350275 l/s
600×400315 l/s
600×450350 l/s
600×600465 l/s

Grille Sizing

APPLICATIONMAX RECOMMENDED VELOCITY (m/s)
Return air grille at high level1.75
Return air grille at low level1.50
Return air grille for low noise level1.25
Wall registers2.50
Fresh air grilles1.50
Discharge louvres1.50

Conversions

CONVERTTOMULTIPLE
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/hrWatts (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