Conversion Data

  • Length Metric to Imperial Imperial to Metric
    mm x 0.394 = ins ins x 25.4 = MM
    m x 3.281 = feet feet x 0.3048 = m
    m x 1.094 = yards yards x 0.9144 = m
    km x 0.6214 miles x 1.609 = km
    Area
    cm² x 0.155 = sq ins sq ins. X 6.452 = cm²
    m² x 10.76 = sq ft sq ft x 0.929 = m²
    m² x 1.196 = sq yards sq yards x 0.8361 = m²
    km² x 0.386 = sq miles acres x 0.4047 = hectare
    Volume
    cm³ x 0.061 = cu ins cu ins x 16.39 = cm³
    m³ x 35.32 = cu ft cu ftx 0.283 = m³
    m³ x 1.308 = cu yards cu yards x 0.7645 = m³
    litres x 1.76 = pints pints x 0.568 = litre = dm³
    litres x 0.2205 = gallons gallons x 4.546 = litre – dm³
  • Flow Rates
    Units CFM M³/hr L/min L/Sec
    10 CFM 10 17 283.3 4.72
    10 M³/hr 17 10 0.6 0.01
    30 L/min 0.35 0.6 10 0.17
    HP – Watts Inches – mm
    1 745.69W 1/16 1.6mm
    3/4 559.27W 1/8 3.2mm
    5/8 466.06W 1/6 4.8mm
    1/2 372.85W 1/4 6.4mm
    3/8 279.63W 5/16 7.9mm
    1/8 248.56W 3/8 9.5mm
    1/4 186.42W 7/16 11.1mm
    1/6 124.28W 1/2 12.7mm
    1/8 93.21W 9/16 14.3mm
    1/16  46.61W 5/8 15.9mm
    11/18 17.5mm
    3/4 19.1mm
    13/16 20.6mm
    7/8 22.2mm
    15/16 23.8mm

Approximate Power Outputs

  • 1PH PSC Motors

    Amps Watts out Watts in Poles
    0.50 35 110(2MF) 4
    0.65 50 145(2.5MF) 4
    0.75 75 165(2.5MF) 4
    1.00 100 180(2.5MF) 4
    1.20 150 280(2MF) 4
    1.40 180 310(2MF) 4
    1.60 210 350(2MF) 4
    2.10 250 230(2MF) 6
    3.00 370 600(2MF) 6
    3.60 550 990(2MF) 6
    5.10 735 1200(2MF) 6
  • Shaded Pole Motors

    Amps Watts inc Stack
    0.20 32 13.5mm
    0.21 35 20mm
    0.23 38 21mm
    0.45 65 25mm
    0.52 73 30mm
    0.68 95 40mm
    0.87 210 45mm
  • NEMA Insulated Classes

    Insulation Rating Max Operation Temp ⁰C & ⁰F
    A 105⁰C 221⁰F
    B 130⁰C 266⁰F
    F 155⁰C 311⁰F
    H 180⁰C 356⁰F

Choosing the Correct Fan

In order to select the correct fan please find below recommended air changes per hour in normal conditions for the following buildings:

Banks 2-4 Launderettes 24-40
Bars/Cafes 10-12 Living Rooms 4-6
Pool Games Rooms 6-8 Hospitals 5-7
Classrooms 2-4 Offices 5-7
Conference Rooms 8-10 Restaurants 10-15
Dark Rooms/X-ray 10-15 Shops/Supermarkets 4-6
Fish & Chip Shops 25-40 Swimming Pools 25-30
Kitchens (domestic) 10-15 Toilet/Bathrooms 10-15
Laboratories 5-10 Canteen 6-10