General information Useful calculation data
7
Condensate pipe size mm
500
400 350 300
250
200
100 000
100 150
50 000
15 20 25 32 40 50 65 80
20 000
Example 3
10 000
5 000
2 000
1 000
500
10
200
100
6
50
20
10
Example 2
Example 4
250
50
5 10 20 30 40
20 10 15 5
200 180 160 140 120
2 1
1 2
0 0.5
0.5 0
100
7.5 22
Example 2 - Discharge lines from traps: Scenario: Discharge 200 kg/h from 15 bar g to 0.5 bar g. How to size: Enter the bottom of the chart at 15 bar g and draw a line to the 0.5 bar condensate pressure line. Draw a line vertically upwards to meet the 200 kg/h line on the upper half of the chart. Result: If the line is rising choose the larger size (32 mm), if the line falls choose the lower size (25 mm). Example 3 - Pumped lines: Scenario: Pump 2 000 kg/h from the pump to the hotwell tank. If it is an electrical pump use the pump discharge rate, not the collection rate. For pressure powered pumps and APTs use 4 x the collection rate. For this example we will use an APT which has the following discharge rate = 4 x 2 000 kg/h = 8 000 kg/h. How to size: Enter the upper half of the chart at 8 000 kg/h and draw a line horizontally to the pipe size. Result: If the line is less than 100 m use the lower size, if it is longer than 100 m, use the larger size.
11.5.19
Example 4 - Discharge lines from thermostatic traps: Scenario: Condensate at 120 °C is discharging to atmosphere (300 kg/h at 120 °C).
How to size: Using the temperature scale, enter the lowest half of the chart at 120 °C and draw a line horizontally to the atmospheric condensate pressure line (0 bar g). Proceed by drawing a line vertically upwards to meet the 300 kg/h line on the upper half of the chart. Result: If the line is falling, choose the lower size; if the line is rising, choose the larger size.
TI-GCM-11 CM Issue 2
Page 2 of 3
Condensate Pipe Sizing
Powered by FlippingBook