Useful Conversions & Technical Information
Viscosity & S.G
cP = CentiPoises
cSt = CentiStokes
SSU = Saybolt Universal Seconds
Seconds Redwood = Seconds Redwood
Degree Engler = Degree Engler
SG = Specific Gravity
For a source of reference to viscosities of different liquids, please CLICK HERE
Converting Viscosities
|
When You Know |
Multiply By |
To Find |
|
cSt |
4.45 |
SSU |
|
Degree Engler |
7.45 |
cSt |
|
Seconds Redwood |
0.2469 |
cSt |
|
cSt |
S.G |
cP |
|
S.G |
cSt |
cP |
|
mPas |
1 |
cP |
Metric Distance Conversions
|
When You Know |
Multiply By |
To Find |
|
Inches |
25.4 |
Millimeters |
|
Feet |
30.48 |
Centimeters |
|
Yards |
0.9144 |
Meters |
|
Miles |
0.609344 |
Kilometers |
|
Centimeters |
0.393700787 |
Inches |
|
Meters |
1.0936133 |
Yards |
Metric Weight Conversions
|
When You Know |
Multiply By |
To Find |
|
Pounds |
0.45359237 |
Kilograms |
|
Short Tons |
0.90718474 |
Metric Tons |
|
Grams |
0.0352739619 |
Ounces |
|
Ounces |
28.3495231 |
Grams |
|
Kilograms |
2.20462262 |
Pounds |
|
Metric Tons |
1.10231131 |
Short Tons |
Metric Volume Conversions
|
When You Know |
Multiply By |
To Find |
|
Fluid Ounces (Imperial) |
28.4130742 |
Millilitres |
|
Pints (U.S) |
0.473176473 |
Litres |
|
Pints (Imperial) |
0.568261485 |
Litres |
|
Quarts (U.S) |
0.946352946 |
Litres |
|
Quarts (Imperial) |
1.13652297 |
Litres |
|
Gallons (U.S) |
3.78541178 |
Litres |
|
Gallons (Imperial) |
4.54609188 |
Litres |
|
Millilitres |
0.0351950652 |
Fluid Ounce (Imperial) |
|
Litres |
2.11337642 |
PInts (U.S) |
|
Litres |
1.75975326 |
Pints (Imperial) |
|
Litres |
1.05668821 |
Quarts (U.S) |
|
Litres |
0.87987663 |
Quarts (Imperial) |
|
Litres |
0.264172052 |
Gallons (U.S) |
|
Litres |
0.219969157 |
Gallons (Imperial) |
Flow Velocity - Litres per Minute to Metres per Second
|
Nominal Pipe Size (Inches) |
DN |
10 lpm |
30 lpm |
50 lpm |
60 lpm |
70 lpm |
100 lpm |
|
1/8 |
02 |
21.05 |
63.15 |
105.25 |
126.31 |
147.36 |
210.51 |
|
1/4 |
04 |
5.26 |
15.79 |
26.31 |
31.58 |
36.84 |
52.63 |
|
3/8 |
06 |
2.34 |
7.02 |
11.69 |
14.03 |
16.37 |
23.39 |
|
1/2 |
15 |
1.32 |
3.95 |
6.58 |
7.89 |
9.21 |
13.16 |
|
3/4 |
20 |
0.58 |
1.75 |
2.92 |
3.51 |
4.09 |
5.85 |
|
1 |
25 |
0.33 |
0.99 |
1.64 |
1.97 |
2.30 |
3.29 |
|
1.25 |
32 |
0.21 |
0.63 |
1.05 |
1.26 |
1.47 |
2.11 |
|
1.5 |
40 |
0.15 |
0.44 |
0.73 |
0.88 |
1.02 |
1.46 |
|
2 |
50 |
0.08 |
0.25 |
0.41 |
0.49 |
0.58 |
0.82 |
Thread Sizing (To Metric Dimensions)
|
Thread Size |
Threads Per Inch |
Pitch (mm) |
Major OD (Male)(mm) |
Major OD (Male)(Inches) |
Minor OD (Male)(mm) |
Minor OD (Male)(Inches) |
Gauge Length (mm) |
Tapping Drill Size (mm) |
Corresponding Pipe (DN) |
Pipe OD (mm) |
Pipe OD (Inches) |
Pipe Wall Thickness (mm) |
|
BSP 1/16 |
28 |
0.907 |
7.723 |
0.304 |
|
|
4 |
|
|
|
|
|
|
BSP 1/8 |
28 |
0.907 |
9.728 |
0.383 |
|
|
4 |
|
6 |
10.2 |
0.40 |
2 |
|
BSP 1/4 |
19 |
1.337 |
13.157 |
0.518 |
|
|
6 |
|
8 |
13.5 |
0.53 |
2.3 |
|
BSP 3/8 |
19 |
1.337 |
16.662 |
0.656 |
|
|
6.4 |
|
10 |
17.2 |
0.68 |
2.3 |
|
BSP 1/2 |
14 |
1.814 |
20.995 |
0.825 |
|
|
8.2 |
|
15 |
21.3 |
0.84 |
2.6 |
|
BSP 3/4 |
14 |
1.814 |
26.441 |
1.041 |
|
|
9.5 |
|
20 |
26.9 |
1.06 |
2.6 |
|
BSP 1 |
11 |
2.309 |
33.249 |
1.309 |
|
|
10.4 |
|
25 |
33.7 |
1.33 |
3.2 |
|
BSP 1 1/4 |
11 |
2.309 |
41.910 |
1.650 |
|
|
12.7 |
|
32 |
42.4 |
1.67 |
3.2 |
|
BSP 1 1/2 |
11 |
2.309 |
47.803 |
1.882 |
|
|
12.7 |
|
40 |
48.3 |
1.90 |
3.2 |
|
BSP 2 |
11 |
2.309 |
59.614 |
2.347 |
|
|
15.9 |
|
50 |
60.3 |
2.37 |
3.6 |
|
BSP 2 1/2 |
11 |
2.309 |
75.184 |
2.960 |
|
|
17.5 |
|
65 |
76.1 |
3.00 |
3.6 |
|
BSP 3 |
11 |
2.309 |
87.884 |
3.460 |
|
|
20.6 |
|
80 |
88.9 |
3.50 |
4 |
|
BSP 4 |
11 |
2.309 |
113.030 |
4.450 |
|
|
25.5 |
|
100 |
114.3 |
4.50 |
4.5 |
|
BSP 5 |
11 |
2.309 |
138.430 |
5.450 |
|
|
28.6 |
|
125 |
139.7 |
5.50 |
5 |
|
BSP 6 |
11 |
2.309 |
163.830 |
6.450 |
|
|
28.6 |
|
150 |
165.1 |
6.50 |
5 |
|
PG 7 |
20 |
1.270 |
12.50 |
0.492 |
11.28 |
0.444 |
|
11.40 |
|
|
|
|
|
PG 9 |
18 |
1.411 |
15.20 |
0.598 |
13.86 |
0.545 |
|
14.00 |
|
|
|
|
|
PG 11 |
18 |
1.411 |
18.60 |
0.732 |
17.26 |
0.679 |
|
17.25 |
|
|
|
|
|
PG 13.5 |
18 |
1.411 |
20.40 |
0.803 |
19.06 |
0.750 |
|
19.00 |
|
|
|
|
|
PG 16 |
18 |
1.411 |
22.50 |
0.885 |
21.16 |
0.833 |
|
21.25 |
|
|
|
|
|
PG 21 |
16 |
1.588 |
28.30 |
1.114 |
26.78 |
1.054 |
|
26.75 |
|
|
|
|
|
PG 29 |
16 |
1.588 |
37.00 |
1.456 |
35.48 |
1.397 |
|
35.50 |
|
|
|
|
|
PG 36 |
16 |
1.588 |
47.00 |
1.850 |
45.48 |
1.790 |
|
45.50 |
|
|
|
|
|
PG 42 |
16 |
1.588 |
54.00 |
2.125 |
52.48 |
2.066 |
|
52.50 |
|
|
|
|
|
PG 48 |
16 |
1.588 |
59.30 |
2.334 |
57.78 |
1.274 |
|
57.75 |
|
|
|
|
IP Ratings Explained
|
First Number (Protection against solid objects) |
Definition |
Second Number (Protection against liquids) |
Definition |
|
0 |
No Protection |
0 |
No Protection |
|
1 |
Protected against solid objects over 50mm |
1 |
Protected against vertically falling drops of water |
|
2 |
Protected against solid objects over 12mm |
2 |
Protected against direct sprays up to 15 degrees from the vertical |
|
3 |
Protected against solid objects over 2.5mm |
3 |
Protected against sprays up to 60 degrees from the vertical |
|
4 |
Protected against solid objects over 1mm |
4 |
Protected against sprays from all directions - limited ingress permitted |
|
5 |
Protected against dust - limited ingress (no harmful deposit) |
5 |
Protected against low pressure jets from all directions - limited ingress permitted |
|
6 |
Totally protected against dust |
6 |
Protected against strong jets of water - limited ingress permitted |
|
|
|
7 |
Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes |
|
|
|
8 |
Protected against long periods of immersion under pressure |
